Self Locking Nut Types

The simplest method of locking a nut using a split pin is shown in the figure.

Self locking nut types.

4 meets torque requirements for nasm25027 through five cycles. The first type used fiber instead of nylon and was invented in. The thread locking performance of types lk lka and lks pemhex self clinching fasteners with md finish is equivalent to applicable nasm25027 specifications. Nut type pem self clinching nut selector guide 1 describes best practice for typical applications.

Most locknuts are available from stock for fast delivery with non standard sizes and specials available to order. Fasteners can be used in other panel materials not listed here if specified. Resistant to vibration torque available in stainless steel and other finishes. Elastic stop nuts and prevailing torque nuts are of the particular type where some portion of the nut deforms elastically to provide a locking action.

In the friction method either an additional nut called lock nut or a spring washer is used to lock the nut. Still in some applications that may not be a problem. A locknut also known as a lock nut locking nut self locking nut prevailing torque nut stiff nut or elastic stop nut is a nut that resists loosening under vibrations and torque. The second nut is held still with a wrench and then the first nut is backed up with another wrench to press tightly against the second nut achieving a locked position on the bolt and also backing the first nut into its desired position.

This type of nut is used on the hubs and bottom brackets of bicycles to lock any nuts just loose enough to. Once initially loosened however they offer no further resistance to loosening which is their main disadvantage. A philidas industrial nut is an all metal locking hexagon nut designed to have a friction grip between the nut and bolt threads. 5 locking performance is not affected by the number of on off cycles.

6 nylon locking element temperature limit is 250 f 120 c. 3 see page 19 for information on nasm25027 as applied to pem self clinching self locking nuts. The positive methods of locking make use of a split pin or a screw or a lock plate or a tab washer to lock the nut. Sl self locking nuts are designed with a unique and economical tri dent locking feature meeting 3 cycle locking performance requirements page 7.

In stock and ready to ship. Choose from our selection of self locking hex nuts including over 1 600 products in a wide range of styles and sizes. Fastenright supply a wide range of self locking nuts for various applications. The self clinching feature is the same tried and proven design preferred and appreciated for fast simple assembly.