1	[国标] GB /T 8 - 2021	方头螺栓 C级 Square Head Bolts - Product Grade C 供应商(5)
2	[国标] GB /T 35 - 2013	小方头螺栓 Square Head Bolts With Small Head 供应商(4)
3	[国标] GB /T 35 - 1988	小方头螺栓 Small square head bolts 供应商(4)
4	[国标] GB 8 - 1988	方头螺栓 C级 Square Head Bolts - Product Grade C 供应商(5)
5	[德标] DIN 21346 - 1989	木轴导向用方头螺栓 Square Head Bolts For Shaft Guides
6	[日标] JIS E 1107 - 2008	鱼尾板用四方螺栓 Fish Plate Bolt Square Head
7	[日标] JIS B 1182 (T1-1) - 1995	方头螺栓(精制) [Table 1-1] Thin Square Head Bolts [Table 1-1]
8	[日标] JIS B 1182 (T1-2) - 1995	方头螺栓(中等精度) [Table 1-2] Square Head Bolts [Table 1-2]
9	[日标] JIS B 1182 (T1-3) - 1995	方头螺栓(粗制) [Table 1-3] Square Head Bolts [Table 1-3]
10	[日标] JIS B 1182 (T2) - 1995	大方头螺栓(粗制) [Table 2] Large Square Head Bolts [Table 2]
11	[汽标代号] Q 194B	小方头螺栓 Small square head bolts
12	[美标] ASME/ANSI B 18.2.1 - 1996	方头螺栓 [Table 1] Square Bolts 供应商(1)
13	[意大利] UNI 5729 - 1965	带方螺母的宽方头螺栓和螺钉米制螺纹 C级 Large square head bolts and bolts with square nut - metric coarse thread - Finish C
14	[英标] BS 916 - 1953	英制方头全螺纹螺钉粗制 - 镦锻 [Table 1] Spuare Head Screws with B.S.Threads [Table 1]
15	[英标] BS 916 - 1953	英制薄方头全螺纹螺钉 - 粗制 - 车削支承面 [Table 2] Square Head Screws faced under head with B.S.Threads - Black [Table 2]
16	[英标] BS 916 - 1953	英制方头螺栓 - 粗制 - 车削支承面或车削支承面和光杆 [Table 2] Square bolts faced under head, and faced under head and turned on shank with B.S.Threads - Black [Table 2]
17	[英标] BS 916 - 1953	英制方头螺栓 - 粗制 - 镦锻 [Table 1] Square Head Bolt with B.S.Threads [Table 1]
18	[台湾] CNS 4699 - 1982	木导板用方头螺栓 Square Head Bolts For Wooden Guide Plates
19	[台湾] CNS 3134 - 1981	精制方头螺栓 Square Head Bolts (Finished)
20	[台湾] CNS 3135 - 1981	次精制方头螺栓 Square Head Bolts (Semi-Finished)
21	[台湾] CNS 3136 - 1981	一般用方头螺栓 Square Head Bolts (Regular)
22	[台湾] CNS 3137 - 1981	大方头螺栓（一般用） Large Square Head Bolts (Regular)
23	[俄标] GOST 21249 (-1) - 1996	方头螺栓 - 1型 - 半沉头 Blunt Bolts for General Purpose - Basic Parameters and Dimensions
24	[俄标] GOST 21249 (-2) - 1996	方头螺栓 - 2型 - 沉头 Blunt Bolts for General Purpose - Basic Parameters and Dimensions
25	[美标] ASME B 18.2.1 - 2012	四方斜头螺栓 [Table 4] (ASTM A307 / A354 / A394) Askew Head Bolts [Table 4] (ASTM A307 / A354 / A394) 供应商(1)
26	[美标] ASME B 18.2.1 - 2012	方头螺栓 [Table 1] (ASTM A307 / A354 / A394) Square Head Bolts [Table 1] (ASTM A307 / A354 / A394) 供应商(1)
27	[美标] ASME B 18.2.1 - 2010	方头螺栓 [Table 1] Square Head Bolts 供应商(1)
28	[美标] ASME B 18.2.1 - 2010	四方斜头螺栓 [Table 4] Askew Head Bolts 供应商(1)
29	[美标] ASME B 18.2.3.10M - 1996	米制四方头螺栓 Metric Square Head Bolts

方头螺栓 C级 GB 8 - 1976

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