A common use is to create a lifting eye so that a crane can be attached to machinery, with special-purpose lifting eyes rated for their safe working load. Eyebolts are used to attach an eye to a structure, through which rope, cable, or shackles can be secured. EyeboltĪn eyebolt is a mechanical fastener with a threaded shaft and a head forming a ring. With a thin head, they fit flush to the mating surface and don’t interfere in small or confined operational systems. They are used in tight spaces with moving parts such as in elevators and conveyor belts. These bolts can have either a square or ribbed neck to prevent the bolts from turning when a nut is tightened. Elevator boltsĮlevator bolts are threaded fasteners with a thin body and round head. The smooth, domed head and the square nut underneath prevent the carriage bolt from being unlocked from the unsafe side. The lock bolt is often used in security fastenings such as locks and hinges where the bolt only needs to be removable from one side. It is common to use a carriage bolt on bare wood, with the square section providing enough grip to prevent rotation. The carriage bolt was designed to be used through an iron reinforcement plate on either side of a wooden beam, with the square portion of the bolt fitting into a square hole in the ironwork. The shaft has no threads, and its diameter corresponds to the side of the square cross-section. The head of a carriage bolt is usually a flat dome. This allows the fastener to be mounted from one side with just one tool, a wrench or wrench. This makes the bolt self-locking when inserted through a square hole in a metal band. It differs from other bolts by its flat mushroom head and the fact that the cross-section of the shank, although circular for most of its length (as with other types of studs), is square just below the head. Also known as a washer head screw in Australia and New Zealand. Carriage boltĪ carriage bolt is a form of Bolt that is used to fasten metal to metal, or more commonly wood to metal. The effectiveness of the blind bolt solution means that, for decades, they’ve been the first choice for restricted access work in sectors like manufacturing, construction, and repair work. On many occasions, restricted access means that using rivets or hex bolts is out of the question, and blind bolts were developed to deal with that exact problem. They were designed to forge a strong connection where traditional rivets or hex bolts were difficult to assemble or just couldn’t do the job. Blind boltsĪ blind bolt is a structural fastener that provides more strength and conformability than a typical rivet or weld. This reverse thread is essential and is part of the main function of the arbor bolt. When you look at the shaft of an arbor bolt, it looks like it is backward as it has an inverted tread pattern like other types of bolts. Typically, arbor bolts are made with a dark or black finish. These bolts also have a head with a sunken design that creates a noticeable ridge around the head of the bolt. The enclosed washer gives the Arbor bolts a very distinctive appearance right from the start. All arbor bolts have a washer that is permanently attached to the tip of the bolts. On all American stationary saws that use a 10 “blade, the arbor is 5/8” in diameter where the blade is attached.Īrbor bolts differ from other bolts in that they are delivered pre-assembled. The arbor is the shaft that holds the blade. These bolts hold the tool securely and keep the blade in place. Arbor BoltsĪrbor bolts are specifically designed for use with power tools, typically miter saws. A common case of a non-load-bearing element attached to a structure is the connection between a facade system and a reinforced concrete wall. Anchor bolts transmit different types of loads: tensile forces and shear forces.Ī connection between structural elements can be represented by steel columns that are attached to a reinforced concrete foundation. The connection can be made using a variety of different components: anchor bolts, steel plates, or stiffeners. Anchor bolts are used to connect structural and non-structural elements to concrete.
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