FORD WD957

Description / Abstract: FORD WD957, 2019 Edition, February 13, 2019 - MECHANICAL AND PERFORMANCE REQUIREMENTS OF (090) THREAD ROLLING SCREWS WITH INDUCTION HARDENED POINTS FOR USE AS GROUNDING SCREWS OR GENERAL USE

This standard specifies the requirements for high performance through hardened thread rolling screws with induction hardened points for use as grounding (earthing) screws or general use applications. The standard relates to TAPTITE PRO^® screws with the Parabolic Profile™ and standard 60 degree thread form ranging from sizes M5 to M14. This standard was originally released for screws with electroplated finishes used to attachment components requiring grounding. Not recommended for cast iron due to its low ductility.

Fastener mechanical properties are in line with ISO 898/1 property class 9.8.

An additional “XD” lubricant per WX 100 may be released with the finish to reduce installation torque or unwanted noise on installation.