1、 WORLDWIDE FASTENER STANDARD Date: 2000 - 09 - 15 Printed copies are uncontrolled. Page 1 of 1 Copyrig ht 2000, Ford Global Technologies, Inc. WD 250 THREAD ROLLING SCREW - CASE HARDENED PAN HEAD 6 LOBE DRIVE CATEGORY 080.030 Dimensions in mm Nominal Size 2.5 3.0 (3.5) 4.0 5.0 Pitch 0.45 0.5 0.6 0.7
2、 0.8 d k max 5.0 5.6 7.0 8.0 9.5 min 4.7 5.3 6.64 7.64 9.14 k max 2.1 2.4 2.6 3.1 3.7 min 1.96 2.26 2.46 2.92 3.52 Driver Size T8 T10 T15 T20 T25 L Tolerance FORD PART NUMBERS 6 W504651 W504661 W504671 W504681 8 W504652 W504662 W504672 W504682 W504692 10 +/ - 0.40 W504653 W504663 W504673 W504683 W50
3、4693 12 W504654 W504664 W504674 W504684 W504694 14 W504655 W504665 W504675 W504685 W504695 16 W504656 W504666 W504676 W504686 W504696 20 W504657 W504667 W504677 W504687 W504697 25 +/ - 0.65 W504658 W504668 W504678 W504688 W504698 30 W504659 W504669 W504679 W504689 W50469 9 Thread: Form optional prov
4、ided parts meet all requirements of WD 951. Length of Thread: WA 900 Material and Performance: WD 951 General Specifications: WB900 except Clause 7. Finish: WX 100 Non - preferred sizes in parentheses ( ) Example Description: W 5 0 4 6 5 1 - S 3 0 9 M S C R E W M 2.5 X 6 P A N 6 L O B E T / R - 0 - 2-3 pitch lead length
