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 311 THREAD FORMING SCREWS FOR PLASTIC THROUGH HARDENED PTPAN COLLAR HEAD, 6 LOBE CATEGORY 080.035 Dimensions in mm Screw S
2、ize 2.0 2.5 3.0 (3.5) 4.0 (4.5) 5.0 6.0 8.0 Pitch 0.89 1.12 1.34 1.57 1.79 2.02 2.24 2.69 3.59 drnom 1.3 1.6 1.9 2.2 2.5 2.8 3.1 3.7 4.9 dcnom 1.1 1.4 1.7 1.9 2.2 2.4 2.7 3.2 4.2 dkmax. 4.00 5.00 6.00 7.00 8.00 9.00 10.0 12.0 16.0 min. 3.7 4.7 5.7 6.64 7.64 8.64 9.64 11.57 15.57 K max. 1.42 1.62 2.2
3、2 2.52 2.72 3.15 3.45 3.75 4.95 min. 1.18 1.38 1.98 2.28 2.48 2.85 3.15 3.45 4.65 a max. L 3d 2.4 2.9 3.5 4.0 4.6 5.1 5.7 6.8 9.1 L 3d 2.0 2.5 3.0 3.5 4.0 4.5 5.0 6.0 8.0 h +/-0.1 0.5 0.6 0.7 0.8 0.9 1.1 1.1 1.3 1.7 Drive Size T6 T6 T10 T10 T20 T20 T20 T25 T40 r max. 0.25 0.3 0.4 0.5 0.5 0.5 0.6 0.8
4、 1.0 Incomplete thread length y 1 to 2 thread pitches L Tolerance FORD PART NUMBERS 4 W505900 5 +/- 0.375 W505901 W505910 6 W505902 W505911 W505920 8 +/- 0.45 W505903 W505912 W505921 W505930 W505941 10 W505904 W505913 W505922 W505931 W505942 W505950 W505961 12 W505905 W505914 W505923 W505932 W505943
5、 W505951 W505962 W505972 14 +/- 0.55 W505906 W505915 W505924 W505933 W505944 W505952 W505963 W505973 16 W505907 W505916 W505925 W505934 W505945 W505953 W505964 W505974 W505980 20 W505917 W505926 W505935 W505946 W505954 W505965 W505975 W505981 25 +/- 0.65 W505927 W505936 W505947 W505955 W505966 W505976 W505982 30 W505937 W505948 W505956 W505967 W505977 W505983 35 +/- 0.80 W505968 W505978 W505984 40 W505979 W505985 General Specification WD900 Material and Performance WD954 Finish WX100 Example Description: W505900 S309U SCREW 2x4 PAN CLLR 6 LOB T/H PLAS
