1、 FORD WORLDWIDE FASTENER STANDARD 2012-09-28 Printed copies are uncontrolled. Copyright 2012, Ford Global Technologies, LLC Page 1 of 1 Revision: Updated NFND note 2012 09 28 WD 310 THREAD FORMING SCREWS FOR PLASTIC THROUGH HARDENED PTHEXAGON COLLAR HEAD CATEGORY 070.025 Dimensions in mm Screw Size
2、3.0 (3.5) 4.0 (4.5) 5.0 6.0 8.0 Pitch 1.34 1.57 1.79 2.02 2.24 2.69 3.59 dr nom 1.9 2.2 2.5 2.8 3.1 3.7 4.9 dcnom 1.7 1.9 2.2 2.4 2.7 3.2 4.2 s max 5.0 5.5 5.5 5.5 7.0 8.0 10.0 e min. 5.4 5.96 5.96 5.96 7.59 8.71 10.95 dkmax. 6.50 7.00 8.00 9.00 10.00 12.00 16.0 min. 6.14 6.64 7.64 8.64 9.64 11.57 1
3、5.57 K max. 2.42 2.92 2.92 3.35 3.65 4.35 6.15 min. 2.18 2.68 2.68 3.05 3.35 4.05 5.85 a max. L 3d 3.5 4.0 4.6 5.1 5.7 6.8 9.1 L 3d 3.0 3.5 4.0 4.5 5.0 6.0 8.0 h +/-0.1 0.7 0.8 0.9 0.9 0.9 1.1 1.3 r max. 0.4 0.5 0.5 0.5 0.6 0.8 1.0 Incomplete thread length, y 1 to 2 thread pitches L Tolerance FORD P
4、ART NUMBERS 5 +/-0.375 6 W505800 8 +/- 0.45 W505801 W505810 W505820 10 W505802 W505811 W505821 W505830 W505840 12 W505803 W505812 W505822 W505831 W505841 W505852 14 +/- 0.55 W505804 W505813 W505823 W505832 W505842 W505853 16 W505805 W505814 W505824 W505833 W505843 W505854 W505860 20 W505806 W505815
5、W505825 W505834 W505844 W505855 W505861 25 +/- 0.65 W505807 W505816 W505826 W505835 W505845 W505856 W505862 30 W505827 W505836 W505846 W505857 W505863 35 +/- 0.80 W505837 W505847 W505858 W505864 40 W505848 W505859 W505865 General Specification WD900 Material and Performance WD954 Finish WX100 Example Description: W505800 S309U SCREW 3x6 HEX CLLR HD T/H PLAS
