螺纹固件尺寸（Thread size）.doc

螺纹固件尺寸（Thread size） Bolt 15.1 I. overview of bolts 15.2 1. bolt size code and marking content (GB/T5276-1985) 15.2 2., six head bolts (Standard Series), the width of the opposite side and head height 15.3 Other structural dimensions of 3., six head bolts (Standard Series) 15.5 4. thread length of ordinary bolt (GB/T3106-1982) 15.8 5. nominal length tolerance of bolts 15.9 6.. Structural dimensions of flange bolts with six angles 15.10 The structure size is 7. square and small square head bolts (GB/T8, 35-1988) 15.12 8. structural dimensions of half round head and countersunk head (Fang Jing, mortise) bolt 15.14 9. varieties of bolts profiles 15.18 10. the use of bolts brief introduction 15.24 Two bolt size and weight 15.26 1., six head bolts - class C (GB/T5780-2000) 15.26 2., six head bolts - Full Thread - class C (GB/T5781 - 2000) 15.30 3., six head bolts (GB/T5782 - 2000) 15.35 4., six head bolts - full thread (GB/T5783 - 2000) 15.39 5., six head bolts - thin rod - class B (GB/T5784 - 1986) 15.44 6., six head bolts - fine teeth (GB/T5785 - 2000) 15.46 7., six head bolts - fine teeth - full thread (GB/T5786 - 2000) 15.50 8., six head, head with slotted bolt - A and B (GB/T29.1 - 1988) 15.55 9. cross recessed recessed six head bolts (GB/T29.2 - 1988) 15.56 10., six head screw with hole bolt - A and B (GB/T31.1 - 1988) 15.58 11., six head screw with hole bolt - thin rod - B (GB/T31.2 - 1988) 15.61 12., six head screw with hole bolts - fine teeth - A and B (GB/T31.3 - 1988) 15.63 13., six head, head, with holes bolts - A and B (GB/T32.1 - 1988) 15.66 14., six head, head with hole bolt - thin rod - B (GB/T32.2 - 1988) 15.69 15., six head, head, with holes bolts - fine teeth - A and B (GB/T32.3 - 1988) 15.71 Bolts for 16., six corner, head reaming - A and B (GB/T27 - 1988) 15.74 Bolts for 17., six head, screw, hole, reaming, A and B (GB/T28 - 1988) 15.78 18., six angle flange bolts - increase series - B (GB/T5789 - 1986) 15.82 19., six angle flange bolts - increase ser