Hex cap screws and hex bolts feature a hexagonal head that is used when tightening the fastener. A hex bolt uses a washer under the head and a beveled end, while the hex bolts lack these features and require a nut.

These fasteners are widely used in construction, machine parts, and maintenance repairs. Hex cap screws and hex bolts are manufactured in a variety of sizes, finishes, qualities, and materials depending on the application.

Socket cap screws are machine screws with a cylindrical barrel-shaped head containing a hexagonal socket. The head has a smaller diameter than most other machine screw heads, typically just 1.5 times the nominal thread diameter. Socket cap screws may also be referred to as socket head cap screws, cap head socket screws,s or hex socket head screws.

Fastening for these components requires no external clearance, which is typical of screws such as a hex head for it to accept a spanner or socket. These properties mean that socket head cap screws are well suited for use within confined spaces.

Anchor bolts are used to connect structural and non-structural elements to concrete. The connection can be made using a variety of different components: anchor bolts, steel plates, or stiffeners. Anchor bolts transmit different types of loads: tensile forces and shear forces.

A connection between structural elements can be represented by steel columns that are attached to a reinforced concrete foundation. 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.

Depending on your technical requirements, we can manufacture all kinds of anchors in any quality and size with or without welded nuts and plates up to M200 diameter.

Machine bolts are used to join two pieces of material together and are similar to hex bolts, except that they do not have a chamfered point or washer-support surface on the underside of the head. They are usually available with both a hexagonal and a square head.

Another fastener, machine screws, is often used interchangeably with machine bolts, which creates confusion. Machine screws are typically smaller than machine bolts, but they are usually evenly threaded along the length of the fastener.

An eyebolt is a mechanical fastener with a threaded shaft and a head forming a ring. Eyebolts are used to attach an eye to a structure, through which rope, cable, or shackles can be secured. 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.

Low-strength eyebolts are often formed from a length of the bar with the diameter of the nominal thread size. The head is simply bent into a ring from an unthreaded section of the bar. These types of eyebolts can carry axial loads reasonably well but should not be used for off-axis loads.

The opening where the end of the bar is closed to complete the ring may be welded but is likely to remain a possible point of failure.

A U-bolt is a bolt in the shape of the letter U with screw threads on both ends.

U-bolts have primarily been used to support pipework, pipes through which fluids and gasses pass. As such, U-bolts were measured using pipe-work engineering speak. A U-bolt would be described by the size of the pipe it was supporting. U-bolts are also used to hold ropes together.

For example, a 40 Nominal Bore U-bolt would be asked for by pipe work engineers, and only they would know what that meant. In reality, the 40 nominals bore part bears little resemblance to the size and dimensions of the U-bolt.

The nominal bore of a pipe is actually a measurement of the inside diameter of the pipe. Engineers are interested in this because they design a pipe by the amount of fluid/gas it can transport.

As U-bolts are now being used by a much wider audience to clamp any kind of tubing/round bar, then a more convenient measurement system needs to be used.

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