These classifications all play a role in the final selection of a bolt type for a certain application. Cementitious grouted anchors mechanical anchors that are installed in a large diameter preformed or drilled hole. Pdf anchor fastening technology manual hilti hong kong. Anchor bolts used for bridge railings shall be stainless steel in accordance with astm a276, type 305 or 430 and have a minimum ultimate strength of 100 ksi 690 mpa. Bolts are regularly marked to indicate their strength, which is dependent on the material and dimensions of the bolt. Code of practice for the design and installation of anchors. The connection is made by an assembling of different components such as.
Types of bolts and their uses the nuts and bolts blog. Table 1 bolt and nut standards specified anchor bolt category bolt standards nut standards mild steel astm a 307 gr. Bolts belong to the family of threaded fasteners and are. The shape of the head is depended upon the purpose for which bolt is required. You have clicked a page that seems to be very popular.
In this article, you will learn about the types of nuts and bolts. A builders guide to the different types of hollow wall and drywall anchors and an explanation of what applications call for which kind. Wind loads and anchor bolt design for petrochemical facilities by not available bibliography. The cylindrical portion of the bolt is known as the shank. Castinplace anchor bolts are the strongest type of fastener, but the casting is difficult, and they are usually only used for heavy machines mounted on poured concrete. When this type of fastener is used, the parts will never be. Pdf comparison of pigtail with j anchor bolt in normal concrete. These types of concrete anchors would be the tapcon, flat or round head sleeve anchors, or any female type anchors where a specific bolt head can be chosen to be inserted into the anchor. For such columns, the simple columnbaseplate connection detail shown in figure 1. The shank is threaded at the tail end for a sufficient length so as to effectively engage with a nut. For this reason, many bolts have a plain unthreaded shank called the grip length as this makes. Anchor bolts bolt types standard bolt size hex bolts. Astm a307, grade a astm a307 does not have a specified yield strength tms 402 commentary recommends a yield strength of 37 ksi. Anchor bolts for brick masonry brick industry association.
The products carried in this catalog may be different in color than the actual item. While a single expansion bolt looks like a basic anchor bolt, a double expansion bolt comprises three separate components. Mating screws have a shoulder that matches the diameter of the sex bolts they are used with. Provide bolts and nuts that meet the standards given in table 1. Anchor bolts are used to connect structural and nonstructural elements to the concrete. Anchor bolts have been extensively used over the world for connecting steel structures to concrete structures. Fastener type chart bolt depot nuts and bolts, screws. Hammers are one of the most common tools youll come across for a wide range of jobs from household to worksite. We also carry a wide range of other bolts including flange screws, lag screws, plow bolts, square head bolts, step bolts, structural bolts and more. They share a hexagonal head and are driven with a wrench. Easy dispensing thanks to wellproven manual, cordless and. How about anchoring the sill plate to the foundation wall. Bolts are typically used to hold materials or objects together, or to position objects.
However, the anchor spacings within a smart cable are usually no less then 1 m. Guide for design and installation of anchor bolts used in. It seems that the traditional anchor bolts have been the design choice for all types of construction. Wind loads and anchor bolt design for petrochemical facilities.
Type a frequency manual reference no 34, 01 of 02 specification. This anchor is made of lead and can be used with wood screws or sheet metal screws. The two main types of this bolt is single and double expansion. Call 800 6036887 now to learn more about the different types of anchors available at copper state. Following are the most commonly used types of bolts, used in various applications and sectors. The different types of hollow wall and drywall anchors. Choosing the best anchor to fasten to concrete concrete. Pdf recent developments in the design of anchor bolts.
A machine screw is a screw or bolt with a flat point. The level of prestressing is usually a percentage of the design working load. Encase bottom, dirt side and top of backfill with approved filter membrane. It is imperative to have the required knowledge to choose the correct bolt type for a specific job at hand, as there are various styles of bolts that are more effective than others. The terms pile and pier are very similar in that they both refer to deep foundation elements that resist or transfer vertical andor horizontal loads, whether compression or tension. Expansion bolts come in a variety of different shapes and sizes as different versions are more suitable for different tasks. All consist of a threaded end, to which a nut and washer can be attached for the external load.
Bolts are classified into different types according to their distinct head shapes, strengths, finishes and materials. Anchor bolts are embedded in concrete or masonry for structural applications. Design so that anchor strength is governed by steel tensile or shear yielding. Make sure to choose the right kind of anchor bolts for your material and fastening power that you need.
Identification chart for types of fasteners bolt and screw wood screws, machine screws, thread cutting machine screws, sheet metal screws, self drilling sms, hex bolts, carriage bolts, lag bolts, socket screws, set screws, eye bolts, eye lags, jbolts, ubolts, shoulder bolts, elevator bolts, sex bolts, mating screws and hanger bolts. The different types may vary in size, application, shape, composition, and purposes but theyre all primarily used to drive nails through different surfaces including wood, plaster, and metal. It is important to understand the differences between these blades for efficiency and effectiveness, as well as for safety of yourself and your coworkers. Large movements are necessary to mobilize the full loadcarrying capacity, to lessen such movements to more acceptable levels, ground anchors are usually prestressed by tensioning. Carefully read the instruction manual of the electrical drill used before using the product. An anchor bolt is a fastener used to attach objects or structures to concrete. Anchor bolts are used to fasten various kinds of objects or structures to concrete. Hex tap bolts, hex cap screws, trim head hex cap screws, and hex serrated flange bolts fall under this category. Wood screw anchors this anchor is made of lead and can be used with wood screws or sheet metal screws. Guide on design of postinstalled anchor bolt systems in hong. Bolts belong to the family of threaded fasteners and are paired with a threaded nut when in use, usually to join two or more components together. There are two different design methods for the type of anchors considered in this. This head was the most universally used design in the past.
The use of forces such as magnetic force or even frictional force can also join materials. This type permits the parts to be readily disconnected without damaging the fastener, e. Depending on the application and the anchor type one of the following two concepts can be applied. Fabricate and install anchor bolts to be embedded in or attached to concrete. Effect of environmental exposure on the creep behavior of adhesive anchors adham m. For horizontal mounting, the piping is horizontal on the suction side and vertical on the discharge side. The bruce anchor holds well in sand, mud and rock, not so well in hard ground. Anchor bolts and attachment hardware seismic design manual. We provide both stocked and custom anchor bolts, anchor bolt assemblies, threaded rod, bolts, bent bolts, nuts, washers, turnbuckles, clevises and more. Wind loads and anchor bolt design for petrochemical facilities 2. These are just a few of the different types of anchors that you are likely to encounter in construction. The undercut of the bolt head is square to hold the bolt in place once tightened. The standard oval fillister head has a smaller diameter than the round head, but is higher with a correspondingly deeper slot.
Used for light duty anchoring in drywall or other hollow walls. This is a combination of the nut applying an axial clamping force and also the shank of the bolt acting as a dowel, pinning the joint against sideways shear forces. For this type, the parts can be disconnected, but some damage usually occurs to the fastener, e. Guide on design of postinstalled anchor bolt systems in hong kong. Jul 07, 2015 different types of bolts are available online, so as to fit into various industry requirements. Residential foundation guideline johnson county kansas. The flexiblecoupled shape allows the motor or pump to be removed without disturbing. The level of installation safety can be found in the relevant approval documents. European design standards and is the method used for anchors with eta. The tensmeg is a 60cmlong, externally mounted strain gauge, and the smart cable is an extensometer fashioned inside a replacement king strand in a cable bolt. Selection guide anchors for concrete applications itw red head. Pdf anchor bolts have been used to attach the steel structure of concrete and transfer load into the.
Types of bolts designing buildings wiki share your construction industry knowledge. There are designs, some consisting of a bent bolt with a hook on the end, or some other sorts of bending like v, u, j, l. Fastener type chart bolt depot nuts and bolts, screws and. Determination of physical properties of cable bolts in cement. This anchor was the answer from the bruce anchor group to the allround c. In this method, under tension loading, the concrete. Alibaba manufacturer directory suppliers, manufacturers. Anchor bolt complete details and installation guide. Design engineers shall refer to manufacturer design manual for minimum bolt. Guide for design and installation of anchor bolts used in transportation structures parsons 24 brinckerhoff castinplace embedded anchors anchors that are positioned before the concrete is cast. Practical design and detailing of steel column base plates. There is not much difference to begin with, however in general parlance, the foundation bolts are basically castin bolts and have j type structure with threading on one end to install the nuts.