标注螺栓和螺母尺寸表.pdf

标准螺栓、螺母、垫圈

螺栓型号厚螺母厚平垫厚度h弹垫厚度s薄螺母厚全长LL（双螺母）
度m度m
M1.60.311.3
M20.30.51.22
M2.50.50.651.62.75
M30.50.81.83.1
M3.50.522.5
M40.81.12.24.1
M55.611.32.77.910.6
M66.41.61.63.29.612.8
M87.91.62.1411.615.6
M109.522.6514.119.1
M1212.22.53.1617.823.8
M1413.92.53.672027
M1615.934.182331
M1816.934.5924.433.4
M201935102737
M2220.235.51128.739.7
M2422.3461232.344.3
M2724.746.813.535.549
M3026.447.51537.952.9
M3329.558.516.54359.5
M3631.9591845.963.9
M3934.361019.550.369.8

螺母
六角螺母—C级I型六角螺母—A和B级六角薄螺母
（GB/T41-2000）(GB/T6170-2000)(GB/T6172.1-2000)

标记示例
螺纹规格D=M12、性能级别为5级、不经表面处理、C级的六角螺母：
螺母GB/T41-2000M12
螺纹规格D=M12、性能级别为8级、不经表面处理、A级的I型六角
螺母：螺母GB/T6170-2000M12

mm
螺纹规格DM3M4M5M6M8M10M12M16M20M24M30M36M42

GB/T418.6310.8914.2017.5919.8526.1732.9539.5550.8560.7972.07

eGB/T61706.017.668.7911.0514.3817.7720.0326.7532.9539.5550.8560.7972.02

GB/T6172.16.017.668.7911.0514.3817.7720.0326.7532.9539.5550.8560.7972.02

GB/T41810131618243036465565

sGB/T61705.57810131618243036465565

GB/T6172.15.57810131618243036465565

GB/T415.66.17.99.512.215.918.722.325.431.534.9

mGB/T61702.43.24.75.26.88.410.814.81821.525.63134

GB/T6172.11.82.22.73.245681012151821
注：A级用于D≤16，B级用于D＞16