1、 WORLDWIDE FASTENER STANDARDDate: 2007-09-01WD 102 TAPPING SCREW - HEXAGON COLLAR HEAD - TYPE R POINT CATEGORY 070.025 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC. Page 1 of 1 dakr1ack2rdkyseLDimensions in mm Size ST3.5 ST4.2 ST4.8 ST6.3 Pitch 1.3 1.4 1.6 1.8 a 1.3
2、1.4 1.6 1.8 damax 4.1 4.9 5.6 7.3 max 8.3 8.8 10.5 13.5 dkmin 7.6 8.1 9.8 12.2 Nom = max 5.5 7.0 8.0 10 s min 5.32 6.78 7.78 9.78 e min 5.96 7.59 8.71 10.95 Nom = max 3.4 4.1 4.3 5.9 k min 3.0 3.6 3.8 5.3 k min 1.5 1.8 2.2 3.1 c min 0.6 0.8 0.9 1.0 r1min 0.5 0.6 0.7 0.9 r2max 0.25 0.3 0.3 0.5 yref2.
3、7 3.2 3.6 5 Length Tolerance FORD PART NUMBERS 9.5 W502500 13 W502501 W502510 16 W502502 W502511 W502520 19 +/- 0.8 W502503 W502512 W502521 W502530 22 W502504 W502513 W502522 W502531 25 W502505 W502514 W502523 W502532 32 W502506 W502515 W502524 W502533 38 +/- 1.3 W502516 W502525 W502534 45 W502526 W
4、502535 50 W502536 a = distance from the underside of the head to the first major diameter of the thread within specified limits y = length of incomplete thread Note: Screws in this standard are based on ISO7053 with a type R point thread to ISO 1478 Mechanical Properties ISO 2702, Thread: ISO 1478 Tolerances Product grade A, ISO 4759-1 Finish: WX 100 Example Description: W502500 SCREW 3.5X9.5 HC R TAP
