Powercoil – M12 x 1.25 – 2.5D Screw Locking Insert

Description

M12 x 1.25 – 2.5D Screw Locking Insert
Bulk Inserts Screw Locking M12 X 1.25 – 2.5D
PowerCoil Wire Thread Inserts strengthen tapped threads in light weight parent materials such as aluminium. They are helically wound inserts made from high quality chromium nickel stainless steel with a diamond shaped cross section.
PowerCoil inserts are used in OEM applications in a wide range of industry sectors including aerospace, automotive, military and electronics.
They are inexpensive when compared to other inserts and simple to install, yet are extremely tough, wear resistant and corrosion resistant. Most importantly, PowerCoil inserts allow the stress loading from the bolt or similar threaded part to be more evenly distributed over the threads in the parent material.
Screw locking (or prevailing torque) inserts are of particular value in applications subject to the effects of cyclic vibration or impact. In addition to the benefits afforded by free running inserts, PowerCoil screw locking inserts offer the additional security of prevailing locking torque.
This is achieved by the action of one or more polygonal grip coils positioned within the insertÂ’s length, which exert radial pressure on the male thread.
Each grip coil consists of a number of tangential locking chords which protrude inside the minor diameter of the normal free running coils.
As the male thread passes through these grip coils, the locking flats are displaced thus exerting radial pressure or prevailing torque on the male thread.
On removal of the male thread, the locking coils relax to their original form permitting repeated assembly whilst retaining a measurable level of prevailing torque.
Note: It is recommended that only close fit plated or lubricated bolts or screws are used with screw locking inserts.
Category: Threaded Inserts, PowerCoil , Wire Inserts Bulk, Bulk Inserts Screw Locking MIL SPEC , Metric Fine Screw Locking
Pitch (mm): 1.25