1	[国标] GB 39 - 1988	方螺母产品等级：C级 Square Nuts - Product Grade C 供应商(2)
2	[国标] GB /T 2153 - 1991	机床夹具零部件 — 菱形螺母 Rhombic Nut
3	[德标] DIN 562 - 2013	四方薄螺母，B级 Square Thin Nuts, Product Grade B 供应商(4)
4	[德标] DIN 557 - 1994	方螺母 C级 Square Nuts-Product Grade C 供应商(4)
5	[德标] DIN 562 - 1987	四方薄螺母 Square Thin Nuts, Product Grade B 供应商(4)
6	[德标] DIN 557 - 1985	方螺母 C级 Square Nuts-Product Grade C 供应商(4)
7	[德标] DIN 798 - 2009	与地脚螺栓配套用地脚螺母 Special Foundation Nuts
8	[德标] DIN 798 - 1972	与地脚螺栓配套用地脚螺母 Special foundation nuts for special foundation bolts according to DIN 797
9	[日标] JIS B 1163 - 2009	单倒角方螺母 Square Nuts With Single Chamfer 供应商(1)
10	[日标] JIS B 1163 - 2001	单倒角方螺母 Square nuts with Single chamfer 供应商(1)
11	[日标] JIS B 1163 - 1995	四方螺母 Square Nuts 供应商(1)
12	[汽标代号] Q 310B	方螺母 Square nuts 供应商(1)
13	[机械行业] JB /T 8004.6 - 1999	菱形螺母 Rhombic Nut
14	[美标] ASME/ANSI B 18.2.2 - 2010	方形机用螺母【1-1】 Square Machine Screw Nuts 供应商(1)
15	[美标] ASME/ANSI B 18.2.2 - 2010	方螺母 [Table 2] Square Nuts [Table 2] 供应商(2)
16	[美标] ASME/ANSI B 18.2.2 - 2010	重型方螺母 [Table 8] Heavy Square Nuts [Table 8]
17	[意大利] UNI 6419 - 1969	方螺母 Square Nuts For Manufacture of Railway and Tramway Rolling Stock - ISO Metric Coarse Thread - Finish C
18	[意大利] UNI 5597 - 1965	方螺母，ISO公制粗牙螺纹，C级 Square nuts. Iso metric coarse thread. Finish c. Dadi quadri normali. Filettatura metrica ISO a passo grosso. Categoria C.
19	[法国] NF E 27-412 - 1973	大方形螺帽 Large square nuts
20	[英标] BS 1981 - 1991	无倒角四方薄螺母 table20 Square Screw Nuts
21	[英标] BS 4183 (T8) - 1967	方形螺母 Machine screw square nuts, pressed type
22	[英标] BS 916 - 1953	英制四方螺母- 粗制 [Table 3] Square Nuts with B.S.Threads - Black [Table 3]
23	[英标] BS 916 - 1953	英制四方螺母 - 粗制 - 单面或双面车削 [Table 3] Square Nuts with B.S.Threads - faced one side or both side - Black [Table 3]
24	[英标] BS 325 - 1947	粗制四方螺母Table7 Black Square Nuts
25	[台湾] CNS 4377 - 1983	四方薄螺母 Square Thin Nuts
26	[台湾] CNS 4378 - 1983	专用地脚螺钉用地脚螺母 Special Anchor Nuts For Special Anchor Bolts
27	[企标] YJT 3030 (41)	塑翼螺母
28	[美标] SAE J 104 - 1969	方形机用螺母 Square Machine Screw Nuts
29	[美标] SAE J 104 - 1969	方螺母 Square Nuts
30	[美标] SAE J 104 - 1969	重型方螺母 Heavy Square Nuts
31	[美标] ASME B 18.2.2 - 2022	方螺母 [Table1] (SAE J995 / ASTM F594 / F467) Square Machine Screw Nuts [Table1] (SAE J995 / ASTM F594 / F467) 供应商(1)
32	[美标] ASME B 18.2.2 - 2022	方螺母 [Table 3] (SAE J995 / ASTM F594 / F467) Square Nuts [Table 3] (SAE J995 / ASTM F594 / F467) 供应商(2)
33	[美标] ASME B 18.2.2 - 2015	方螺母 [Table1-1] (SAE J995 / ASTM F594 / F467) Square Machine Screw Nuts [Table1-1] (SAE J995 / ASTM F594 / F467) 供应商(1)
34	[美标] ASME B 18.2.2 - 2015	方螺母 [Table 2] (SAE J995 / ASTM F594 / F467) Square Nuts [Table 2] (SAE J995 / ASTM F594 / F467) 供应商(2)
35	[美标] ASME B 18.10 - 2006 (R2016)	轨道螺栓用方螺母 [Table 3] (A563) Track Bolt Nuts (Square nuts) [Table 3] (A563) 供应商(1)
36	[美标] ASME B 18.2.2 - 2022	重型方螺母 [Table 9] (SAE J995 / ASTM F594 / F467) Heavy Square Nuts [Table 9] (SAE J995 / ASTM F594 / F467)
37	[美标] ASME B 18.2.2 - 2015	重型方螺母 [Table 8] (SAE J995 / ASTM F594 / F467) Heavy Square Nuts [Table 8] (SAE J995 / ASTM F594 / F467)