GB/T798 活节螺栓

标准：GB 798-1988 活节螺栓

工艺：冷镦

详细信息

GB/T798 活节螺栓  材质、等级：8.8级、10.9级、12.9级 、A2-70、A4-70 、A4-80等

 

表面处理：镀普通蓝白锌、普通彩锌、热镀锌、环保彩锌、环保蓝白锌、环保达克罗等

 

盐雾时间：可做72H、96H、120H、300H、360H、720H等高盐雾处理

 

电话咨询：400-086-0001 025-86183701-8026

 

徐小姐

 

邮件咨询：dm8026@18luosi.com

 

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Nominal Diameter M6 M8 M10 M12 M16 M20 M24 M30 M36 M42 M48
P Pitch 1 1.25 1.5 1.75 2 2.5 3 3.5 4 4.5 5
b L≤120 (Type A) 18 22 26 30 38 46 54 66 78 / /
120＜L≤200 (Type A) / 28 32 36 44 52 60 72 84 96 108
L＞200 (Type A) / / / 49 57 65 73 85 97 109 128
Type B* L-10 L-13 L-16 L-19 L-25 L-31 L-37 L-43 L-55 L-60 L-72
ds Nominal Size 6 8 10 12 16 20 24 30 36 42 48
max 6.48 8.58 10.58 12.7 16.7 20.84 24.84 30.84 37 43 49
min 5.52 7.42 9.42 11.3 15.3 19.16 23.16 29.16 35 41 47
k Nominal Size 4.5 5.5 7 8 10.5 13 15 19 23 26 30
max 4.9 5.9 7.5 8.75 11.4 13.9 15.9 20 24 27 31
min 4.1 5.1 6.5 7.25 9.6 12.1 14.1 18 22 25 29
n Nominal Size 6 8 10 12 16 20 24 30 36 42 48
max 6.6 8.75 10.75 12.9 16.9 21 25 31 37.25 43.25 49.25
min 5.4 7.25 9.25 11.1 15.1 19 23 29 34.75 40.75 46.75
m Nominal Size 16 18 21 26 30 36 43 54 66 80 88
max 15.1 17.1 20 25 29 34.75 41.75 52.5 64.5 78.5 86.25
min 16.9 18.9 22 27 31 37.25 44.25 55.5 67.5 81.5 89.75
①,Threaded chamfered end (CH) or rounded end (RN) according to DIN EN ISO 4753 according to the manufacturer's choice
②,For L > 200 mm. Lengths over 200 mm are to be stepped from 20 mm to 20 mm. The following applies to these lengths: Thread length b = 2 d + 25 mm or as agreed.
③,* Type B thread length (b) = Corresponding total length (L) - unthreaded length (Lg) [The corresponding unthreaded length is given in the table]