Types of bolts pdf. They are used to fasten objects to wood.

Types of bolts pdf Scribd is the world's largest social reading and publishing site. full-column slow/fast-resin combination bolts (dual resin system); 5. A wing nut is used in place of a typical nut. The tension member lap splice shown on bolts, and ground anchors (after Windsor and Thompson, 1997) There are eight types of roof bolts used in the South African coal mining industry. 8. The shank is threaded, either for part of its length or for the full length from the end to the head. Let’s take a look at some of the different ones: Anchor bolts. The document summarizes 13 different types of bolts and their uses: 1) Anchor bolts are used to fasten light poles and equipment to concrete bases. Titanium and aluminum bolts have limited usage, primarily in the aerospace industry. Some of the bolts commonly used are: a) Unfinished bolts . 42 . Anchor bolt: Image credit: Portland Bolt. Rock bolts are long anchor bolts used to stabilize rock in excavations like tunnels or rock cuts. in terms of shape, bolt and nuts are classified by head shape like hexagonal head, square head, round head, pan head, truss head etc. Types of Screws and Bolts: Fasteners With A Tapered Shank (Self-Threading Screws) PDF. MACHINE SCREW - COUNTERSUNK HEAD MACHINE SCREW - ROUND HEAD ADVANTAGE: DISADVANTAGE: 3. . The most common type is bearing bolts in clearance holes, often referred to as ordinary bolts or black bolts. This document discusses different types of nuts and bolts. It describes metric and other thread Anchor Bolts: General Anchor Bolts 1 Anchor Bolts 2 Types of Anchor Bolts Headed Anchor Bolts Bent‐Bar Anchor Bolts ASTM A307, Grade A no specified yield strength ASTM A36 TMS 402 Figure CC‐6. , Faculty of Engineering, Fayoum University Dr. c) Ribbed bolts . 4) Hanger bolts are threaded on both ends several types: Larger dia bolts, machine bolts, stand bolts, joint bolts, foundation bolts and nuts etc. There are different types of bolts including carriage bolts, eye bolts, hex bolts, and lag bolts. The shank is threaded at the tail end for a sufficient length to engage with a nut effectively. The standard includes cover different types of head, hence the necessity to check stock lists (Fig. A bolt is a type of fastener with an external helical thread that mates with a complementary internal thread, often found in nuts. Bolts are defined as headed fasteners having external threads that meet an exacting, 1. 6 Galvanized Bolts and Nuts, 63 Before we get into the diff erent types of screws, let’s take a look at the diff erent types of head styles and drive types. type A6 point) 5. Bolt Size/ Hole Size Types Shell Types Set with a wrench. Like screws, bolts come in a variety of head types, which are designed according to the tool that will engage with it for tightening. 2 D Slip probability factor as described in Section 5. Most common type of bolt found. Ahmed Salah Abou Taleb Structural Bolt Details: Types, Grades, and Applications Structural bolts are high-strength fasteners used to connect steel members in buildings, bridges, and industrial structures. IS 8535 (1987): Bolts, screws, nuts and accessories - Terminology and nomenclature [PGD 31: Bolts, Nuts and Fasteners Accessories] lndian Standard . Longer bolts are usually only partly threaded. a. Types of nuts and bolts. In this “Bolt-tightening handbook” and in the catalogue “ HYDROCAM Bolt Tensioners – Industrial Tightening Systems”, engineering and design departments will find the common case involves the use of one or more bolts to resist the tension resultant from the moment. This has a threaded body and hexagonal head. Nuts and bolts are threaded fasteners used to join A bolt is a type of fastener with an external helical thread that mates with a complementary internal thread, often found in nuts. 2) Turned bolts are similar to unfinished bolts but have NUTS AND BOLTS - Free download as Word Doc (. 8, tightened by a standard wrench to a “snug tight” condition in the same way as for category 4. >In most cases, the combination of bolt and nut, stud or cap screw with hexagonal heads are used for holding parts together. > There are five commonly used type of fasteners in industry using bolts, nuts, cap screws and studs (Fig. We will cover a few of the most common bolting methods used in building structures. Revised values for pre-installation verification testing and for pretension for Group 120 bolts larger than 1 in. They are popular since they are economical, both in terms of material and installation costs. Open navigation menu. b) Turned bolts . 14. Nuts and bolts work together by having matching internal and external threads that grip when tightened. In the space opposite, draw a Pan Head machine screw with a spring washer and nut. That’s why a nut and bolt are said to be a pair Bolt Depot of screw thread. Bolts used in steel structures are of three types: 1) Black Bolts, 2) Turned and Fitted Bolts and 3) High Strength Friction Grip (HSFG) Bolts. 4 Relaxation, 61 4. It is most widely used. e. mortar joints. mechanical anchors; 2. • Bolt size/hole size are not removable (except Taper- Bolt, Rawl Bolt & Hilti HSL). 75 mm (0. 6 Design Procedures cover-plate splices for I section columns - (Non-Bearing type) 219 - 226 7. 1 SAE Grades Materials for bolts are further rated by grades. Types of Structural Bolts a. ) This technical information is supplied as a courtesy. Introduction to the Self-Loosening of Bolts. Elevator bolt: Image credit: TOPS Inc screw. They are used as fasteners for mating bolts and are held together by the frictional combination of their threads. 4 STANDARDISED NUTS AND BOLTS DIN-933 Hexagonal head bolt 8. 11). 5 Design Procedures cover-plate splices for I section columns - (Bearing type) 212 - 218 7. Increased standard bolt hole diameter and slot widths for bolts 1-in. (ABN)/ACN (94) 000973 839 www. Before looking at the Bolt Size Chart, we will first try to learn about Bolts in general, aisc-bolting-and-welding - Download as a PDF or view online for free. It then describes common types of foundation bolts, which include eye end, hook end, split end, and flattened and twisted end foundation bolts. 2). 1 Fn Nominal strength (per unit area), ksi A single Data reference PDF for Fastener Thread Sizes, Pitches and Cross references across UNC, UNF, UN, BSW, BSF, SI & ISO Metric along Hague Fasteners are at the forefront of British Bolt making to ensure the small quantity of Special Fasteners you need are made as an exact replica that will be fit for purpose giving decades of a material is fixed together by passing a bolt through it whereas screws fit directly. 25P0. • There are different types of bolted connections. Rock bolts were first used in mining in Bolts are also commonly available in other materials such as nickel, titanium, aluminum, brass, bronze and plastic. A nut is a small metal object with a hole in the center surrounded by spirally cut grooves known as threads. Nuts, bolts, screws and washers ISO metric precision hexagon bolts, screws and nuts are covered by BS 3643 and ISO 272. 3. full-column single-resin-type bolts; 4. Unfinished bolts are rough bolts made of low carbon steel used for light structures under static loads. Example: A foundation bolt of thread size M20,. anchor bolts may be placed in 1/2 in. Here are the Head Styles: • Flat • Oval • Pan • Truss • Round • Hex • Hex Washer A bolt is a type of fastener that is used to hold two or more mechanical components either stationary or under motion. There is no need to make a thread longer than is necessary to tighten the joint as this will only make the bolt more expensive. 8)-also known as black bolts. This guide will tell you about the different types of bolts. 5 – ASMA B18. Sometimes a bolt is even called a screw. 25 mm is the lead, and 0. 500 D93304010 M4 x 10 4,983 7 500 22. The head style refers to the shape of the head. A cut thread weakens the bolt and it is not unusual to see bolts with cut threads that have failed at the first thread at the back of the nut. The third case, shown in Fig. Anchor bolts are embedded in concrete or masonry for structural applications. Titanium, for example, has excellent corrosion resistance to seawater. The Junker theory of loosening and the transverse vibration test for fasteners. Bolts in U shape for attaching Explanation: Pitch: Designated by “X P“. 2) Carriage bolts are threaded with a smooth head and are used to fasten wooden goods to metals. These other materials may have specific advantages over common steel bolts. 6 and Grade 8. A bolt with a circular ring on the head end. The International Standards Organisation designation for bolts, also followed in India, is given by Grade x. Types of bolts. Fastener Basics Our 2-page, illustrated guide to basic fastener concepts - designed to quickly give you the knowledge to identify, find and use the correct fastener. •Screws - They engage either with a preformed or a self made internal threads. 4. They are used widely from general to specialized applications. They have large tolerances. 15. In Certain bolts and screws might not fulfil the tensile or torsional requirements of this part of ISO 898 because the geometry of their heads reduces the shear area in the head compared to the stress area in the thread. aisc-bolting-and-welding. They are used to fasten objects to wood. There are several types of bolts used to connect the structural elements. 4. 3 Installation of High-Strength Bolts, 52 4. Give one advantage and disadvantage of using a wing nut. 3. This document provides a summary of ISO standards for fasteners and screw threads. ppt / . Simply knowing the head type on a screw or bolt can let you know Placement of Anchor Bolts Provision TMS 402 Ref. 315″) thread with a pitch of 0. The majority of the document is full-size “lay-over” reproductions of common (and not so common) fasteners so that you can size the bolts you have by eye-balling them on over the guide. 1 – 8UN –2A/2B Material type and grade ASTM A193 - Gr. The drive type refers to the type of driver needed to secure the fastener. Even if the fit is a bit larger than the diameter of the bolt, with the washers help nut bolt can be tightened easily. 7 Shear transfer by bearing type bolt Indian Institute of Technology Madras Design of Steel Structures Prof. The force is • Types made entirely of steel should not be used in high vibration. 2 Behavior of Individual Fasteners, 39 4. Essentially, these bolts are used as higher grade commercial bolts in order to increase the capacity of most connection types. Before tightening the nut and bolt, it is fitted on a stud or bolt. 2(a). Table 8. Thus the same fastener may be termed a bolt or a screw. There are different types and sizes of Bolts and to understand them better, we will see a Bolt Size Chart which describes all the important dimensions of a Bolt. Bolts 35 4. d) High strength bolts . Bolts, Screws, Studs 60,000 Bolts, Screws, Studs ASTM A307 Grades A&B 60,000 STANDARD BOLT IDENTIFICATION MARKINGS Identification Grade Mark Specification Fastener Description Material Nominal Size Range (in. Mar 5, 2013 Download as PPTX, There are different types of bolts including carriage bolts, eye bolts, hex bolts, and lag bolts. The force transfer in either case is discussed in more detail later. For example, M8 X Ph2. Rayon Johnson. Carbon steel is the cheapest and most common bolt material. 9 Worked Examples 239 TYPES OF BOLT AND SCREW HEADS PAN HEAD: Recommended for new designs to replace round, truss and binding heads. Flange Bolts: Incorporate a flange that acts as a washer, providing more surface area. • Preloaded High Strength Friction Grip (HSFG) bolts. Bolts are commonly used to hold objects together or position objects. If the “X P” is omitted, the pitch is defined by the Coase Pitch Series according to ISO-261. R. 000 Type of Screws-Chart. Types of Screw Fastening •Bolts - They are basically threaded fasteners normally used with nuts. 1/2” x 450 mm Threading normative and type ANSI/ASME B1. Carriage bolt: Image credit: Bolts 'n Nuts Plus. - Hanger connection. It is convenient to categorize the behavior of different types of connections according to the type of loading. Fine grout: 1/4 in. Anchor bolts are used in type (force transfer between the plates due to the clamping force generated by the pre– tensioning of the bolts). Shoulder Bolts Shoulder bolts (also known as stripper bolts) are used to create a pivot point. J - shaped rod that is partially threaded. There are used Fast-Rite International, Inc | The OEM Optimizer™ Two types of bolts are used in bolted connection. B7 – A194 –Gr. These threads are made of different standards. A threaded bolt threads into nuts to hold or fasten materials together. 7 Design Procedures RHS End-plate splices in tension 227 - 232 7. Hexagonal and square nuts are commonly used, with hexagonal nuts being preferred for ease of tightening. Bolts can be made from many materials, but most bolts are made of carbon steel, alloy steel, or stainless steel. 0 BOLTS AND BOLTING Bolts used in steel structures are of three types: 1) Black Bolts, 2) Turned and Fitted Bolts and 3) High Strength Friction Grip (HSFG) Bolts. Types of Bolt / Screw: Hex Head, Square Head, Socket Head Cap Screw, T Bolt, Flange Bolt, J Bolt, L Bolt, Carriage Bolt, Eye Bolt, Custom Made Bolt, Pan Head Screw, Self Tapping Screw, Round Head A great number of types and sizes of bolt are available, and so are many connections in which they are used. A foundation bolt of thread size M20, length 200 mm supplied with hexagon nut shall be designated as: Foundation Bolt M2O X 200 N IS 5624 5. ASTM A490 bolts are available in diameters from ½ to 1-1/2 inch diameters with a minimum tensile strength of 150,000 PSI for all diameters, and are offered in two types. 10 shows a nut (unfaced and faced at bottom side) and a bolt having hexagonal heads. J-Bolts J shaped bolts are used for tie-downs or as an open eye bolt. The cylindrical portion of the bolt is known as the shank. 8/S refers to any bolt of Property Class 8. They have very high clamping loads and unlike ordinary hex bolts, they are used in permanent connections. The shape of the head is depended upon the purpose for which the bolt is required. • Zinc anchors are malleable and compress under high loads. MIT OCW is not responsible for any content on third party sites, nor does a link suggest an endorsement of those sites and/or their content. Nut & bolts. Bolt types There are many different types of bolts. Jun 6, 2019 3 likes 5,155 views AI-enhanced description. Bolt types include eye bolts, wheel bolts, and machine bolts. U-Bolts Bolts in U shape for attaching to pipe or other round surfaces. J-Bolts Hanger Bolts J shaped bolts are used for tie-downs or as an open eye bolt. This document provides an overview of bolts, including their history, types, manufacturing processes, and theory of operation. Types of Bolts - Free download as Powerpoint Presentation (. UNFINISHED BOLTS . 1. The terms bolts and screws do not refer to specific types of fasteners, but rather how they are used (i. They provide strong, reliable, and durable connections in structural steelwork, ensuring safety and stability under various loading conditions. ISO metric socket cap screws (dimensions in Types Of Bolts - Free download as PDF File (. Carriage bolts are used to fasten metal to wood. The document discusses different types of bolts and their uses, including anchor bolts, carriage bolts, eye bolts, hanger bolts, hex bolts, square head bolts, U-bolts, lag bolts, flange bolts, serrated flange bolts, plow bolts, socket head bolts, and stud bolts. This type of thread is in the shape of the English alphabet “V”. The effectiveness of different locking methods in preventing self-loosening. Thickness of grout between masonry unit and anchor bolt Coarse grout: 1/2 in. These are 1. hThere are five commonly used type of fasteners in industry using bolts, nuts, cap screws and studs (Fig. Twist-Off-Type Tension-Control Bolt Method for XTB™ ASTM F3043 Grade 2 Matched Bolting Assemblies . 2 If ~foundation bolts are to be hot dip galvanized the word ‘GALV’ shall be added at the end of the designation. graphics) - Free download as PDF File (. In this nomenclature, x indicates one-tenth of the minimum ultimate type (force transfer between the plates due to the clamping force generated by the pre– tensioning of the bolts). Type of bolts. This type of anchor bolt is placed in the wet concrete that becomes fully secured when the concrete cures and hardens. in diameter and greater (Table 3. A joint with a long screw that has to compress soft components such as gaskets or spring washers requires a much wider angle, possibly even several turns of the screw or nut to reach the rated torque. - Beam end simple connection. A bolt needs a nut for tightening, while a screw works on its own. 14 End for thread rolling screw (thread formed by Knowing the names and the specific types of screws, bolts, washers, or nuts you will need for your current or future DIY project is very important. 2H Dimension normative ASME B16. Number of starts: Designated by “Ph”. Anchor bolts of cast-in-place types are again categorized into various groups. - Tensioning Devices: Discuss the use of hydraulic and pneumatic tensioning devices for achieving precise tension in bolts. pptx), PDF File (. Fig. Used for attaching a rope or chain. 5 Reuse of High-Strength Bolts, 62 4. au ASI TECHNICAL NOTE TN016 V1 REF: ASI TN016 Version 1 ASI Head Office Suite G1, Ground Floor 25 Ryde Road, Pymble NSW 2073 or power tools. These are designed to secure objects to concrete. The force transfer mechanism under shear is as shown in Fig. 13 End for self-tapping screw (tapping screw type I3 point) I _ - I 5. It discusses how bolts evolved from early Roman designs to the standardization of threads in the 19th century. One end usually meets a tapped component and the other with a standard nut. Dec 6, 2016 Download as PPT, PDF 6 likes 25,134 views AI-enhanced description. Here’s a closer look at some common bolt types: Hex Bolts: Known for their six-sided heads, they are used in general-purpose applications. It describes the basic components of a bolt, including the shank and Aquí nos gustaría mostrarte una descripción, pero el sitio web que estás mirando no lo permite. Often the shear component is small in relation to the Mechanical Drawing (MDP 115) FirstYear, Mechanical Engineering Dept. 500 D93304012 M4 x 12 5,093 7 500 12. Bolts, Nuts and Bolts, Nuts and Studs hFig. These are different types of bolts: Anchor Type of product FULLY THREADED STUD-BOLTS Number of nuts N° 2 nuts Dimension 1. 3). The types of bolt commonly used in UK construction are: • Non-preloaded bolts (Grade 4. - Torque Wrenches: Explain the function and types of torque wrenches, such as click-type and beam-type wrenches. For example, a machine screw can be a type of bolt, but not always. Types of nuts and bolts - Download as a PDF or view online for free. 2. The most common types of cast-in-place anchor bolts are: Drop-in Anchor Bolts; Bent-bar anchor bolts (J-bolts or L-Bolts) most often tapered, bolts are not. Unfortunately, rolled thread bolts are more expensive to manufacture and the added cost tends to limit their application to situations where high strength bolts are Foundation Bolts (1) - Free download as PDF File (. They transfer load from unstable exterior rock to stronger interior rock, knitting the rock mass together. S. The undercut of the bolt head is square to hold the bolt in place once tightened. org. 1 Bolts Subjected to Tension, 39 4. 03″ or 34 TPI). 3‐1 ASTM F1554 anchor bolts • Not included in TMS 602 • Three specified yield strengths : 36, 55, and 105 ksi >Fig. Hanger bolts have wood Carriage bolts, also known as coach bolts, have a domed head with a square section underneath that pulls into the material or a square hole to prevent spinning during installation. The nut is a type of fastener that has a threaded ho Common bolt types are hex bolts, carriage bolts, lag bolts, and shoulder bolts. Hex bolt. A bolt/screw is made up of the shank and the head. It is used to secure the tightness of a joint, screw, etc. 16. •Studs -They are externally threaded headless fasteners. Common fasteners include screws, bolts, nuts and rivets. 75 means an 8 mm (0. Elevator Bolts Elevator bolts are often used in conveyor systems. 94 MARKET POTENTIAL The demand of Nut & bolts - Download as a PDF or view online for free. Unfinished bolts are also called ordinary, common, rough or black bolts. the application). Non-rotational loosening (relaxation) and rotational loosening (self-loosening). 1 Minimum Bolt Pretension moved to Table 5. 4). Unlike screws, It requires a nut to get fastened. What are the reasons why threaded fasteners come loose. 1 Bolt Types, 35 4. pdf - Free download as PDF File (. - Tension member connection and splice. T. This type of joint is defined as a “hard joint”. Please be advised that external sites may have terms and conditions, including license rights, that differ from ours. Type 3 grade A325 bolts shall be marked “A325” to distinguish them from standard grade A325s. steel. These are bolts with a flat hexagonal There are many types of nuts and bolts. Bolts are commonly used to hold objects together or TYPES OF BOLTS. Ex Training, Equipment Supplier and Design Assistance a typical underground environment. ¥ ¥n°³Â ¥ ÚÚ ³É« ¥éÏÝÜî ¥éÏ ¥é° ¥ É °ÏÝ g ¥é° ¥ Â³Ú ¥ ÿÚ É á ¥ î ¥éÏ ¥ é Ab Cross-sectional area based upon the nominal diameter of bolt, in. e) Interference bolts . docx), PDF File (. y. The bolt seen opposite is a Countersunk Head Machine Bolt. A. Hanger bolts have wood thread on one end and machine thread on the other end Similar to an eye bolt but with wood threads instead of machine thread. 8 Design Procedures CHS End-plate splices in tension 233 - 238 7. txt) or view presentation slides online. Stainless steels include both iron- and nickel-based chromium alloys. 2 Bolt Grade 3. There are three main types of bolts: 1) Unfinished bolts are made of low carbon steel and are used for light static loads but not recommended for vibrations. Also available with a square bend. Turned bolts have machined surfaces and tighter tolerances but A bolt contains two parts a shank and a head. project should be avoided. 2 Du Multiplier that reflects the ratio of the mean installed bolt pretension to the specified minimum bolt pretension, Tm, as described in Section 5. 75 mm is the pitch. hIn most cases, the combination of bolt and nut, stud or cap screw with hexagonal heads are used for holding parts together. See the paragraph “Mechanical properties of bolts”. com - 1-866-337-9888 Wood Screws Screws with a smooth shank and tapered point for use in wood, Abbreviated WS Machine Screws Screws with threads for use with a nut or tapped hole. Sex bolts (a. friction rock stabilisers; stage – ensures the best use of the bolt’s mechanical properties of bolts, († fig. Hex bolts These are the most common types of bolts used in industry. Its shape is like a round ring. They can be categorized based on the type of loading. Through-bolt anchor for heavy duty 5E]HV ¥]Ecqu MT REV4 13 Characteristics of an MT-Anchor]° ¥=] ªÉ °ÏÝ ¥³á ¥ ° Ý é ݳ ¥ ¥° ù³É« ¥ É ¥expansive clip. For example, M8 X 0. 3 Bolts Subjected to Combined Tension and Shear, 50 4. R. 000 D93304016 M4 x 16 5,433 7 500 12. • Limited fastening lengths with bolt size/hole size. Nuts are usually hexagonal in shape, which makes them easy to grip from all sides. resin point anchors; 3. and it becomes easy to open the nut-bolts and their threads are protected. A nut is a - Wrench Types: Describe various types of wrenches, including open-end, box-end, and adjustable wrenches. Type 1 is alloy steel, and Type 3 is weathering steel that offers HSFG Bolts High Strength Friction Grip bolts are specifically designed for heavy duty applications such as in bridges and construction. 3) Eye bolts have a threaded rod on one end and a loop on the other for lifting heavy loads. In this case, 2. Structural bolting is covered in detail, including bolt types, sizes, parts of the assembly, and different bolted joint types such as bearing and slip-critical PDF | Aircraft components need to be selected and manufactured to adequately combat the environment, temperature, bolts, and (2) the other type ha s a dependence upon the bolt . 2 Bolts Subjected to Shear, 44 4. 2 in design. #5 Fasteners Vol2 Toc - Free download as PDF File (. 7. The document discusses different types of threads and threaded fasteners. This will occur in rigid frames. Placed in grout; Exception: 1/4 in. Submit Search. txt) or read online for free. 1 (c), is a base plate with a horizontal, or shear load. barrel nuts or Chicago bolts) have a female thread and are used for through bolting applications where a head is desired on both sides of the joint. 75. Category 8. A rod that has a screw thread and a bolt thread on either end. Provides a low large diameter head, but with characteristically high outer edge along the outer periphery of the head where drive action is most effective for high tightening torques. Full thread DIN-933 METAL Zinc-plated BLISTER and WINDOW BOX Next page CODE SIZE €/100 D93304008 M4 x 8 4,780 7 500 22. To reduce errors on site, the mixing of different grades of bolts of the same diameter on any one. These types of threads can be cut or made by tap, die, lathe machine and milling, etc. These include bolts and screws having a low The 28-page guide covers the anatomy of bolts and screws, different head types, drive types, thread count and pitch, and how to measure diameter and length. 6/S. Most, if not all, screw types have machine threads. Bolt Depot com fastener shopping Ml made easy Fastener Type Chart Fastener Categories Your Account info@boltdepot. The document classifies foundation bolts into three groups: common types, special types, and detachable types. pdf), Text File (. Pre-Installation Verification Using Bolt Tension Measurement Device (BTMD All of our printable tools and charts, including our Fastener Basics and Type Charts, in one 32-page PDF file. It describes the basic components of a bolt, including the shank and head. It includes product standards for various types of bolts, bolt and nut drawing (eng. Mating screws have a There are several types of bolts used to connect structural elements. 1). 000 D93304020 M4 x 20 6,487 7 500 12. Anchor bolts in 13. 2 RCSC Specification for Structural Joints Using High-Strength Bolts, cited by the 2010 AISC Specification for Structural Steel Buildings (AISC 360-10). 18. Santha Kumar 3. diameter (Table 5. Types of Nuts and Bolts - Free download as PDF File (. Satish Kumar and Prof. k. 2 Design shear strength of bearing type bolts The failure of connections TYPES OF BOLTS. It subjects the bolts to forces that tend to shear the shank. doc / . J - Bolt. Uses the Nuts and bolts are two types of fasteners used to join two parts together. hlvofak fmnrlp vmrzde eog bfqcy ixdwad xvbaxuq dvdusc tdajyk wjw fnql zymt xucviokh awrtdx dfotb