1、FORD WORLDWIDE FASTENER STANDARDDate: 1999-04-05Engineering Standards & 1 of 1 Printed copies are uncontrolled .Systems Engineering (ESSE)WB 306MACHINE SCREWS90 o COUNTERSUNK (FLAT HEAD)PILOTED - 6 LOBE DRIVEPC 8.8 - THREAD CLASS 6gCATEGORY 020.060Dimensions in mmNominal Size M3 M4 M5 M6 M8Pitch 0.5
2、 0.7 0.8 1 1.25d k max 5.5 8.4 9.3 11.3 15.8min 5.2 8 8.9 10.9 15.4k max 1.65 2.7 2.7 3.3 4.65r max 0.8 1 1.3 1.5 2Driver Size T10 T20 T25 T30 T40L Tolerance FORD PART NUMBERS4 W5057505 +/- 0.24 W5057516 W505752 W5057608 +/- 0.29 W505753 W505761 W50577010 W505754 W505762 W505771 W50578012 W505755 W5
3、05763 W505772 W50578114 +/- 0.35 W505764 W505773 W505782 W50579016 W505765 W505774 W505783 W50579120 W505775 W505784 W50579225 +/- 0.42 W505785 W50579330 W505786 W505794Thread: ISO 261 and 965Pilot L p & d p : WA 900Material & Performance: WA 950 - Property Class 8.8General Specifications: WB 900 (See Appendix D for recess requirements)Finish: WX 100Example Description:W 5 0 5 7 5 0 S 3 0 9 S C R E W M 3 X 4 F L A T C S K P I L 8
