Deutsches Institut fur Normung e. V.

Aerospace; Screws, pan head with TORQ-SET recess, fully threaded
 N LN 29785

Annotation

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 pan head screws with TORQ-SET recess 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 DIN 29 895 (at present still in draft from) are approved by the responsible qualification authorities as equivalent to the German material.

The surface treatment required in clause A. 3 is equivalent to the called for by LN 9368 Parts 1 and 5.

difference in appearance, due to different manufacturing processes, has no influence on the performance and inter-changeability, provided the dimensions given in the table are a adhered to.

A.2 Materials

For alternative materials see DIN 29 895 (at present still in draft from).

A.3 Surface treatment

UK DTD 904

USA QQ-P-416, type II, class 3

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