1、 WORLDWIDE FASTENER STANDARD Date: 2002-11-01 Global Materials & 1 of 1 Printed copies are uncontrolled. Fastener Standards (GM&FS) WB 206 BOLT RAISED HEAD - 90oCOUNTERSUNK (OVAL) PILOTED - 6 LOBE DRIVE PC 8.8 - THREAD CLASS 6g CATEGORY 020.040 Dimensions in mm Nominal Size M3 M4 M5 M6 M8 Pitch 0.5
2、0.7 0.8 1 1.25 dkmax 5.5 8.4 9.3 11.3 15.8 min 5.2 8 8.9 10.9 15.4 f ref 0.7 1 1.2 1.4 2 k max 1.65 2.7 2.7 3.3 4.65 r max 0.8 1 1.3 1.5 2 Driver Size T10 T20 T25 T30 T40 L Tolerance FORD PART NUMBERS 4 W505650 5 +/- 0.24 W505651 6 W505652 W505660 8 +/- 0.29 W505653 W505661 W505670 10 W505654 W50566
3、2 W505671 W505680 12 W505655 W505663 W505672 W505681 14 +/- 0.35 W505664 W505673 W505682 W505690 16 W505665 W505674 W505683 W505691 20 W505675 W505684 W505692 25 +/- 0.42 W505676 W505685 W505693 30 W505694 Thread: ISO 261 and 965 Pilot Lp& dp: WA 900 Material & Performance: WA 950 - Property Class 8.8 General Specifications: WB 900 (See Appendix D for recess requirements) Finish: WX 100 Example Description: W 5 0 5 6 5 0 B O L T M 3 X 4 R C T I 8 M3 Sizes Not to be used for new designs
