Overview
The AN 76 spring needle cotter pin is a fastener that consists of a metal rod of semicircular cross-section bent in half, with an eyelet formed at the bend. The straight part of this part fits into a hole prepared for it in advance, and the bent part is snapped into place in several places.
Fastening group AN 76
The AN 76 is primarily made of stainless steel and belongs to the stainless steel fastener group.
Materials of manufacture of the AN 76 cotter pin
- Steel, which can be optionally coated with zinc.
- Stainless steel, steel grades A2 and A4. This material does not require additional coating.
Areas of application of the D-shaped cotter pin
Such cotter pins are used in mechanical engineering as a more reliable way to fix nut connections. Its main task is to prevent self-tightening of fastening nuts in the assembly of various components.
The scope of application also directly depends on the material of manufacture and coating of the cotter pin:
- Zinc-coated steel is less susceptible to corrosion if AN 76 is to be used in aggressive environments.
- Stainless steel. Steel grade A2 allows AN 76 to be used at high temperature extremes and in aggressive and humid environments.
