FORD WORLDWIDE FASTENER STANDARDDate: 1993-01-01Engineering Standards Gauging, hardness testing, heat treatment and performance requirements must conform to WH 901.Finish: WX 100NOTE: Parts to this standard are susceptible to embrittlement and must not be electrolytically plated (See WX 100).Example Description:W 5 2 5 5 0 0 S 3 0 0 P I N 2 X 6 S P G C L D