Hex bolts, or hex cap screws, are used in machinery and construction. Can be used with a nut, or in a tapped hole. Hex bolts have hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.
They are made from a material very similar to grade 8.8 bolts, but have different shaped heads and nuts. The nut is tightened in a carefully controlled manner to put a large pretension into the bolt shank. This has the effect of clamping together the plates between the bolt head and the nut.
Flange bolts have a circular flange under the head that acts like a washer to distribute the load. Flange bolts that are non-serrated are sometimes called frame bolts.
Socket cap screws are commonly used in machine parts, die fixturing, and clamping. The socket head enables driving where there is not sufficient space for wrenches or sockets.
Wheel studs are the threaded fasteners that hold on the wheels of many automobiles. They are semi-permanently mounted directly to the vehicle hub, usually through the brake drum or brake disk. Lug nuts are fastened onto the wheel stud to secure the wheel.
Countersunk Bolts are used when a flat surface is needed, usually in securing steel plates to a roadway or bridge deck during rehabilitation, railings, etc.
Most popular for use on bodywork and plastics, these attractive dome heads are manufactured with the smallest possible Allen key drive, whilst the large head diameter spreads the load and gives the most appealing cosmetic appearance.
A machine screw is a screw or bolt with a flat point. Available in a variety of drive types and heads, they fit a wide variety of applications. Often driven into tapped holes. Used with nuts and washers, also known as “stove bolts” or “stovers”.
