FORD WE954 PDF

1. SCOPE.

This standard covers ma& al, heat tmatment, and performance of IS0 mettic threaded spring nuts, in the range M4 to Ml2 inclusive. NOTE: The design may vary between manu& urers provided all requirements of this standard are met.

1.1 REFERENCES. IS0 26 1 -General purpose metric screw threads -General plan. IS0 683/18 -Heat-treated steels, alloy steels and free cutting steels-Part 18: Wrought unalloyed steels in the nomulized, or nonnalized and cold-drawn, or hot-rolled and colddrawn condition. IS0 898-2 -Mechanical properties of fasteners IS0 965-2 -General purpose metric screw threads -Tolerances. WSD-MlA283-B371B38A339lB50/B52 -Steel, cross reference standard parts. W-H-l-X -Control of Heat Treating Processes and Auxiliary Equipment 3   h. MATERIALANDHEATTREATMENT. 2.1 MATERIAL. The material shall be spring steel in accordance with WSPMlA238- B37/B38/B39fB501B51.. 2.2 HEAT TREATMENT. Austemper to HV420 -520, Process tests and controls per W-HlX.