You can find them in stainless steel, carbon steel and other heavy-duty materials. The difference is that self-locking nuts feature some type of mechanism to resist loosening. They may have an elastic base.

Self-Locking Nut · Self Locking Nut, Shape: Hex.

Lock washers are a very popular locking choice especially with smaller-sized fasteners. Essentially, there are two types: spring action and tooth. Spring action washers include split, conical (Belleville) and wave. These washers, placed under the nut or screw head, compress as the fastener is tightened and the spring-back tension deters loosening.

However, the reliability of this kind of self-locking will be reduced under dynamic load. In some important occasions we will take some anti-loose measures to ensure the reliability of the nut locking. 1. Two nuts are screwed on the same bolt, and a tightening torque is added between the two nuts to make the bolt connection reliable. 2.

DAX nuts use an AISI 301 stainless steel insert. effort is limited and in any case much less than that required for other types of self-locking nuts.

Nylon Insert Lock Nut The next type is a nylon insert lock nut or 'nylock' which looks like a regular nut, except for the crown on the top of it. The blue part shown is a piece of nylon and it is inserted into the crown. When the bolt is inserted, it interferes with the nylon causing it to lock the nut in place.

Solid and reliable: U-NUT® self-locking nuts offer high safety under extreme loads. Product types Downloads. Image of a U-NUT® self-locking nut.

A self-locking bolt with a domed head and square section underneath. Used mostly in hinges and locks to provide a level of security, permitting removal from the bolt’s nut

The tool size needed for removal and installation depends on the type of lug nut. The three most common hex sizes for lug nuts are 17 mm, Most designs can be defeated using a hardened removal tool which uses a left-hand self-cutting thread to grip the locking nut, although more advanced designs have a spinning outer ring to frustrate such

The locknuts may find themselves in coastal and industrial areas where corrosion may be an issue, and within the chemical, photographic and food processing industries. Available as standard in A1 and A4 Stainless Steel, non-leaded Steel and Brass. Aerotight Lock Nuts can be customised to a customer's specification, with variations on thread

There are many alternatives to self-locking fasteners, which include cotter pins, jam nuts, washers, and many other similar devices. These devices also prevent the disassembling of nuts and bolts. The disadvantage is that these devices add extra weight to the nuts and bolts.