scope:

General

This annex contains additional information for the manufacture of pan head bolts outside Germany.

Owing to varying approving procedures, production methods, materials, etc. the details given in this standard on counter-sunk head screws are not always sufficient for manufacture abroad. For instance, materials are used which may well ensure the required characteristics for a standard part in its final state, but which are not listed as equivalent material in the corresponding data sheet of the German Aviation Materials Manual, Par I.

The foreign materials listed in clause A.2 are approved by the responsible qualification authorities of the individual countries as equivalent to the German materials.

The surface treatment required in clause A.3 to US-specification is equivalent to that called for in LN 9368.

A.2 Material

Italy

AMS 4935 precipitation hardened

United Kingdom

TA 28

A.3 Surface treatment

2500 + MIL-L-8937