What is a centerlock nut?

Center lock nuts are low cost, one piece, all-metal prevailing torque hex lock nuts with chamfered (beveled) corners. The locking action is created by two or three equally spaced rectangular or round indentations centered in the flats (sides) of the nuts that slightly distort the threads.

What are self locking nuts used for?

A lock nut, also referred to as locknut, locking nut, and self-locking nut, is a kind of fastener that used to secure bolted joints and resist loosening under vibration and torque.

What is a self locking hex nut?

A Locknut (self-locking nut, locking nut), is a nut which resists loosening through vibration and normal use. This trait makes them essential hardware for a multitutde of applications. Unlike free spinning nuts, lock nuts make use of a deforming elastic or metal material to stay in position against torque and shock.

What is UNC lock nut?

Lock Nuts – UNC Locknuts are used to lock a full nut in position to prevent it from working loose as a result of vibration or other factors. Locknuts are often mixed up with Nyloc nuts, which are different.

What is a Stover nut?

Stover® lock nuts are one-piece hex nuts which derive their prevailing torque characteristics from controlled distortion of their top threads from their normal helical form to a more elliptical shape.

Why are some nuts oval?

Elliptical offset nuts The salient feature is that the thread form has been deformed at one end so that the threads are no longer perfectly circular. The deformed end is usually shaped into an ellipse or obround triangle.

Can you reuse self-locking nuts?

“Do not reuse self-locking nuts. These nuts are designed to be used only once and should be replaced whenever they are removed.”

Do you need washers with lock nuts?

Lock washers are needed when the fastener assembly is subject to vibration or wherever back off is considered an issue. When should I use washers with bolts? Always use a washer between the installation material and the nut.

Are hex nuts and lock nuts the same?

Unlike free spinning hex nuts, lock nuts make use of a deforming elastic or metal material to stay in position against torque and shock. Nylon insert lock nuts are a popular solution for many applications, however they are limited to applications exposed to temperatures under 250°.

Is a jam nut the same as a lock nut?

Jam nuts Also called a half lock nut, a jam nut has a lower profile than standard nuts and designed to be tightened – or jammed – against another nut. The jam nut by itself is not a lock nut – it’s the function it performs that earns its place here.

How do Stover nuts work?

The nut’s distorted threading gets stretched as the fastener is inserted into it, causing friction between the nut and fastener and creating the locking action. The elastic nature of the deformation of top lock stover nuts means they can be reused indefinitely.

What grade is a Stover nut?

Stover Locknuts are offered in grade C with a cadmium and wax finish; and in grade G with a black phos finish. Featuring controlled distortion of its top threads, stover locknuts can withstand high temperatures and severe vibration. Often used in automotive applications, they can be paired with flanged / frame bolts.