1、 WORLDWIDE FASTENER STANDARDDate: 2007-09-01WD 124 TAPPING SCREW - RAISED COUNTERSUNK (OVAL) HEAD - TYPE R POINT HEXALOBULAR SOCKET CATEGORY 080.040 yrdktaLAkf90 +20rfDimensions in mm Size ST3.5 ST4.2 ST4.8 ST6.3 Pitch 1.3 1.4 1.6 1.8 a 1.3 1.4 1.6 1.8 Theoretical max 8.2 9.4 10.4 12.6 dkActual max
2、7.3 8.4 9.3 11.3 min 6.9 8.0 8.9 10.9 f 0.8 1.0 1.2 1.4 k max 2.35 2.6 2.8 3.15 r 1.4 1.6 2.0 2.4 rf8.5 9.5 9.5 12 yref2.7 3.2 3.6 5 Socket No. 15 20 25 30 Hexalobular A ref 3.35 3.95 4.5 5.6 socket max 1.40 1.80 2.03 2.42 t min 1.14 1.42 1.65 2.02 Length Tolerance FORD PART NUMBERS 9.5 W502600 13 W
3、502601 W502610 16 W502602 W502611 W502620 19 +/- 0.8 W502603 W502612 W502621 W502630 22 W502604 W502613 W502622 W502631 25 W502605 W502614 W502623 W502632 32 W502606 W502615 W502624 W502633 38 W502616 W502625 W502634 45 W502626 W502635 50 +/- 1.3 W502636 a = distance from the underside of the head t
4、o the first major diameter of the thread within specified limits y = length of incomplete thread Note: Gauging of head dimensions is specified in ISO 7721 Note: Screws in this standard meet the requirements of ISO 14587 R Point Mechanical Properties ISO 2702, Thread: ISO 1478 Tolerances Product grade A, ISO 4759-1 Finish: WX 100 Example Description: W502600 SCREW 3.5X9.5 RC TI R TAP Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC. Page 1 of 1
