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Flat cap nut2/24/2024 There are also self-locking acorn nuts that have distorted threads in the hex area to create a tight friction fit to prevent the nut from vibrating loose. ![]() The high acorn nut is wider and higher and will protect extra long studs. It can also be chrome plated and given a mirror finish. ![]() It is usually made of brass, steel, stainless steel (low carbon content) or nylon. In addition the dome gives a more finished appearance. This is to prevent contact with the external thread to protect the threads or protect other things the threads would rub against. It is a nut that has a domed top to cover the threads. Acorn nut is its common name and it is also called a crown hex nut, blind nut, cap nut or domed cap nut. Hanger bolts have wood thread on one end and machine thread on the other end.įor screwing all the way into threaded holes.The stainless steel hexagon domed cap nuts are the type of fastener which gets its name from its shape. Mating screws have a shoulder that matches the diameter of the sex bolts they are used with. 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. Shoulder bolts (also known as stripper bolts) are used to create a pivot point.Įlevator bolts are often used in conveyor systems. J shaped bolts are used for tie-downs or as an open eye bolt. Similar to an eye bolt but with wood threads instead of machine thread.īolts in U shape for attaching to pipe or other round surfaces. Socket screws, also known as Allen head, are fastened with a hex Allen wrench.Ī bolt with a circular ring on the head end. ![]() Head that has a small square section underneath.įlange bolts have a flange on the bottom of the head that distributes the load like a washer. With threads for use with a nut or tapped hole. Machine screws with a thread cutting (self tapping) point.
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