GB/T798 活節(jié)螺栓

標(biāo)準(zhǔn)：GB 798-1988 活節(jié)螺栓

工藝：冷鐓

詳細(xì)信息

GB/T798 活節(jié)螺栓  材質(zhì)、等級(jí)：8.8級(jí)、10.9級(jí)、12.9級(jí) 、A2-70、A4-70 、A4-80等

 

表面處理：鍍普通藍(lán)白鋅、普通彩鋅、熱鍍鋅、環(huán)保彩鋅、環(huán)保藍(lán)白鋅、環(huán)保達(dá)克羅等

 

鹽霧時(shí)間：可做72H、96H、120H、300H、360H、720H等高鹽霧處理

 

電話咨詢：400-086-0001 025-86183701-8026

 

徐小姐

 

郵件咨詢：dm8026@18luosi.com

 

QQ咨詢：2850588428 

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]