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六角頭粗杆半牙螺栓M42-M160 B級 DIN 931-2 - 1987

選擇規格尺寸點擊↓

M42

(M45)

M48

(M52)

M56

(M60)

M64

(M68)

M72

(M76)

M80

M90

M100

M110

M125

M140

M160

括号内尺寸為非優選

尺寸單位: mm

德标DIN 931-2 - 1987 DIN931-2 931-2DIN 六角頭粗杆半牙螺栓M42-M160 B級

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單重計算公差公制螺紋極限尺寸米/英制螺紋對照螺紋直徑與受力截面積最小破壞扭矩牌号等級毛坯直徑

螺紋規格
d

M42

(M45)

M48

(M52)

M56

(M60)

M64

(M68)

M72

P	螺距
b	L≤125
	125＜L≤200
	L＞200
c	最小值
c	最大值
d_a	最大值
d_s	最大值=公稱
d_s	最小值
d_w	最小值
e	最小值
k	公稱
	最大值
	最小值
k₁	最小值
r	最小值
s	最大值=公稱
s	最小值

4.5	4.5	5	5	5.5	5.5	6	6	6
90	96	102	-	-	-	-	-	-
96	102	108	116	124	132	140	148	156
109	115	121	129	137	145	153	161	169
0.3	0.3	0.3	0.3	-	-	-	-	-
1	1	1	1	1	1	1	1	1
45.6	48.6	52.6	56.6	63	67	71	75	79
42	45	48	52	56	60	64	68	72
41.61	44.38	47.38	51.26	55.26	59.26	63.26	67.26	71.26
60.6	64.7	69.4	74.2	78.7	83.4	88.2	92.9	97.7
71.3	76.95	82.6	88.25	93.56	99.21	104.86	110.51	116.16
26	28	30	33	35	38	40	43	45
26.42	28.42	30.42	33.5	35.5	38.5	40.5	43.5	45.5
25.58	27.58	29.58	32.5	34.5	37.5	39.5	42.5	44.5
17.9	19.3	20.9	22.8	24.2	26.2	27.6	29.8	31.2
1.2	1.2	1.6	1.6	2	2	2	2	2
65	70	75	80	85	90	95	100	105
63.1	68.1	73.1	78.1	82.8	87.8	92.8	97.8	102.8

螺紋長度b

螺紋規格
d

(M76)

M80

M90

M100

M110

M125

M140

M160

P	螺距
b	L≤125
	125＜L≤200
	L＞200
c	最小值
c	最大值
d_a	最大值
d_s	最大值=公稱
d_s	最小值
d_w	最小值
e	最小值
k	公稱
	最大值
	最小值
k₁	最小值
r	最小值
s	最大值=公稱
s	最小值

6	6	6	6	6	6	6	6
-	-	-	-	-	-	-	-
164	172	192	-	-	-	-	-
177	185	205	225	245	275	305	345
-	-	-	-	-	-	-	-
1	2	2	2	2	2	2	2
83	87	97	107	117	132	147	167
76	88	90	100	110	125	140	160
75.26	79.26	89.13	99.13	109.13	124	139	159
102.1	106.9	121.1	135.4	144.9	168.6	185.6	214.1
121.81	127.46	144.08	161.02	172.32	200.57	220.8	254.7
48	50	57	63	69	79	88	100
48.5	50.5	57.6	63.6	69.6	79.6	88.7	100.7
47.5	49.5	56.4	62.4	68.4	78.4	87.3	99.3
33.2	34.6	40.3	43.7	47.9	54.9	61.1	69.5
2	2	2.5	2.5	2.5	2.5	2.5	2.5
110	115	130	145	155	180	200	230
107.8	112.8	127.5	142.5	152.5	177.5	195.4	225.4

螺紋長度b

替代列表

DIN 931-2 - 1987 DIN 931-2 - 2009

技術條件和引用标準

材料

鋼

通用要求
螺紋	公差
	标準
機械性能
公差	產品等級
	标準
表面處理
表面粗糙度
驗收及包裝
備注

DIN 267 part 1

DIN 13 part 12,15

性能等級及材料按協議

ISO 4759 part 1

不經處理
電鍍 DIN 267 part 9
熱浸鍍鋅 DIN 267 part 10

DIN 267 part 2

DIN 267 part 5

① The symbols denoting the property classes specified in ISO 898 part 1 may also be used for sizes above M 39, provided that all the mechanical properties related to the symbol concerned are complied with.

引用參考

GB /T 1172 - 1999

黑色金屬硬度及強度換算值

GB /T 5267.1 - 2002

鍍鋅、鍍鎳、鍍镉、複合鍍等層鍍層鹽霧腐蝕的防護性能

GB /T 193 - 2003

普通螺紋（一般用途米制螺紋）- 直徑與螺距系列 (ISO 261: 1998, MOD)

GB /T 3106 - 2016

緊固件 - 螺栓、螺釘和螺柱 - 公稱長度和螺紋長度 (ISO 888:2012, MOD)

GB /T 12603 - 2005

金屬熱處理工藝分類及代号

GB /T 3 - 1997

普通螺紋收尾、肩距、退刀槽和倒角 (ISO 3508:1976 / ISO 4755:1983)

GB /T 5779.1 - 2000

緊固件表面缺陷 - 螺栓、螺釘和螺柱 - 一般要求

GB /T 5779.3 - 2000

緊固件表面缺陷 - 螺栓、螺釘和螺柱 - 特殊要求

注：技術數據僅供參考，請以官方原件為準！

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上海亞螺精密緊固技術有限公司

聯系人：徐海

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材質：301、302、303、304、304L、316、316L、316Ti、317L、310S、321、347、1.4529、1.4539、1.4462、1.4547、1.4980、904L、2205、2507、2520、S32750、S32760、1Cr13、1Cr17、2Cr13、3Cr13、14Cr17Ni2、410、416、420、430、431、440、630、631、17-4PH、MP350N、600、601、625、660、718、750、800、825、925、926、C22、C276、A286、GH2132、GH4033、GH4080、GH4169、GH4145、9C18Mo、4Cr10Si2Mo、35CrMoA、42CrMoA、40CrNiMoA、25Cr2Mo1VA、SCM435、SCM440、4130、4140、4145、A36、A307、A320、A325、A490、A574、F1554，不鏽鋼、合金鋼、钛合金、鎳基合金、高溫合金、耐蝕合金、鎳钴合金、特種合金等；等級：A1-50、A2-50、A2-70、A2-80、A3-70、A4-70、A4-80、A4-90、A4-100、A5-80、B8、B8M、B8C、B8T、B6、B7、B7M、B16、C1-50、C1-70、C1-110、C3-80、C3-120、C4-70、D2-80、D2-100、D4-80、D4-100、D6-80、D6-100、D8-80、D8-100、P1-90、P1-120、F51、F53、F55、F60、10.9、12.9、14.9、15.9、16.9等；規格範圍：M3-M120,1/4"-4"；表面處理：鈍化、發黑、磷化、電泳、鍍鋅、鍍鎳、鍍鉻、鍍镉、鍍金、鍍銀、鍍錫、鍍銅、滲鋅、海洋鋅、滲鋁、噴塗鋁、達克羅、久美特、特氟龍、鋅鎳合金、鎳钴合金、熱鍍鋅、複合陶瓷、二硫化钼、二硫化鎢、納米塗層等，均可定制。

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材質：304,304L,316，316L；等級：A2-70/A4-70/A4-80；規格：M16-M76

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類似标準及供貨信息

1	[國标] GB /T 5780 - 2016	C級六角頭螺栓 Hexagon Head Bolts - Product Grade C 供應商(4)
2	[國标] GB /T 5782 - 2016	六角頭螺栓 A級和B級 Hexagon Head Bolts - Grade A and B 供應商(17)
3	[國标] GB /T 5780 - 2000	C級六角頭螺栓 Hexagon Head Bolts - Product Grade C 供應商(4)
4	[國标] GB /T 5782 - 2000	A級和B級六角頭螺栓 Hexagon head bolts-Product grades A and B 供應商(17)
5	[國标] GB 5780 - 1986	六角頭螺栓 C級 Hexagon Head Bolts - Product Grade C 供應商(4)
6	[國标] GB 5782 - 1986	六角頭螺栓 A級和B級 Hexagon Head Bolts - Product Grades A and B 供應商(17)
7	[國标] GB 30 - 1976	六角頭螺栓 Hexagon Head Bolts 供應商(5)
8	[國标] GB 5 - 1976	六角頭螺栓 Hexagon Head Bolts 供應商(4)
9	[國标] GB 838 - 1988	六角頭不脫出螺釘 Hexagon Screws with Waisted Shank
10	[國标] GB 5784 - 1986	細杆六角頭螺栓 B級 Hexagon Head Bolts - Reduced Shank - Product Grade B
11	[美标] IFI 513 - 1982	米制六角頭螺釘 Table 8 Metric Hex Head Machine Screws
12	[美标] IFI 541 - 1982	米制鐵塔用六角頭螺栓 Metric Hex Transmission Tower Bolts
13	[德标] DIN 931-2 - 2009	米制M68 - M160 x 6 的六角頭螺栓 B級 Hexagon head bolts - Part 2: Metric thread M 68 to M 160 x 6 - Product grade B 供應商(2)
14	[德标] DIN 7964 - 1990	粗牙縮徑杆（細杆）螺栓、螺釘 Reduced Shank Bolts and Screws with Coarse Thread 供應商(4)
15	[德标] DIN 7964 (D1) - 1990	粗牙不脫出螺栓和螺釘 - 六角頭 (ISO 4014) Reduced shanke bolts and screws with coarse thread - Hexagon head (ISO 4014) 供應商(4)
16	[德标] DIN 7964 (D2) - 1990	粗牙不脫出螺栓和螺釘 - 六角頭 (DIN 931) Reduced shanke bolts and screws with coarse thread - Hexagon head (DIN 931) 供應商(4)
17	[德标] DIN 931-1 - 1987	六角頭粗杆半牙螺栓M1.6-M39 Hexagon head bolts grades A and B partially threaded 供應商(10)
18	[德标] DIN 7964 - 1977	六角頭不脫出螺釘 Hexagon head screws with waisted shank 供應商(4)
19	[德标] DIN 65339 - 2021	航空航天 - 耐腐蝕鋼，短MJ螺紋，緊公差六角頭螺栓 - 用于溫度最高425℃，标稱抗拉強度1100MPa Hexagon Bolts, Close Tolerance, With Short-length MJ Thread, Corrosion-resisting Steel - Nominal Tensile Strength 1100 MPa, For Temperatures Up To 425℃
20	[德标] DIN 6929 (DE) - 2013	粗牙六角頭細杆螺栓 Hexagon Head Bolts
21	[德标] DIN 601 - 1987	六角頭螺栓 M5 ~ M52 產品等級：C級 M5 to M52 Hexagon Head Bolts - Product Grade C
22	[德标] DIN 43165 - 1985	電力牽引；用于架空配件的凹端螺釘（A.六角頭螺釘，B.六角頭螺釘帶螺母，C.方頭螺釘） Electric traction; screws with cup point for overhead fittings
23	[國際] ISO 4014 - 2022	六角頭螺栓 A和B級 Hexagon Head Bolts - Product Grades A and B 供應商(5)
24	[國際] ISO 4016 - 2022	六角頭螺栓產品等級：C級 Hexagon Head Bolts - Product Grade C 供應商(1)
25	[國際] ISO 4014 - 2011	六角頭螺栓產品等級A和B級 Hexagon Head Bolts—Product Grades A And B 供應商(5)
26	[國際] ISO 4016 - 2011	C級六角頭螺栓 Hexagon Head Bolts-Product Grade C 供應商(1)
27	[國際] ISO 4014 - 1999	六角頭螺栓產品等級A和B級 Hexagon head bolts - Product grades A and B 供應商(5)
28	[國際] ISO 4016 - 1999	C級六角頭螺栓 Hexagon head bolts-Product grade C 供應商(1)
29	[國際] ISO 4015 - 2022	六角頭細杆螺栓（細杆直徑約等于中徑）- 產品等級：B級 Hexagon Head Bolts - Reduced Shank(Shank Diameter≈Pitch Diameter) - Product Grade B
30	[國際] ISO 4015 - 1979	六角頭細杆螺栓，B級 Hexagon Head Bolts-Product Grade B-Reduced Shank(Shank Diameter≈Pitch Diameter)
31	[日标] JIS B 1180 (ISO4016) - 2014	六角頭螺栓產品等級：C級 [Figure-2] Hexagon Head Bolt - Coarse thread - Product Grade C
32	[日标] JIS B 1180 (ISO4014) - 2014	六角頭螺栓產品等級：A級和B級 [Figure 1] Hexagon Head Bolt - Coarse thread - Product Grades A and B
33	[日标] JIS B 1180 (ISO8765) - 2014	六角頭螺栓細牙產品等級：A級和B級 [Figure 3] Hexagon Head Bolt, Fine thread, Product Grade A and B
34	[日标] JIS B 1180 (ISO4015) - 2014	六角頭螺栓粗牙細杆產品等級：B級 [Figure 7] Hexagon Head Bolt, Pitch diameter, Coarse thread, Product Grade B
35	[日标] JIS B 1180 (ISO4016) - 2004	六角頭螺栓產品等級：C級 [表2] Hexagon Head Bolts, Product Grade C [Table 2]
36	[日标] JIS B 1180 (AAT1.1) - 2004	六角頭螺栓精制 [Annex Attached Table 1.1] Hexagon Head Bolts - Finished (Attached Table 1.1)
37	[日标] JIS B 1180 (AT1.2) - 2004	六角頭螺栓半精制 [Annex 1 Attached Table 1.2] Hexagon Head Bolts (Semi-finished) [Annex 1 Attached Table 1.2]
38	[日标] JIS B 2801 - 1996	BB和SB型卸扣用六角頭螺栓和六角螺母 Hexagon Head Bolt and Hexagon Nut for Shackles, Forms BB and SB
39	[日标] JIS B 1180 (ISO 4014) - 1994	六角頭螺栓產品等級：A級 [Table 3] Hexagon head bolts, Product Grade A [Table 3]
40	[日标] JIS B 1180 (ISO 8765) - 1994	六角頭螺栓產品等級：B級 [Table 4] Hexagon head bolts, Product Grade B [Table 4]
41	[日标] JIS B 1180 (ISO 4016) - 1994	六角頭螺栓產品等級：C級 [Table 7] Hexagon head bolts, Product Grade C [Table 7]
42	[日标] JIS B 1180 (AT1.2) - 1994	六角頭螺栓半精制 [Annex Attached Table 1.2] Hexagon head bolts, semifinished [Annex Attached Table 1.2]
43	[日标] JIS B 1180 (AT1.3) - 1994	六角頭螺栓普通加工精度 [Annex Attached Table 1.3] Hexagon head bolts, regular [Annex Attached Table 1.3]
44	[日标] JIS B 1180 (AAT1.1) - 1994	六角頭螺栓精制 [Annex Attached Table 1.1] Hexagon head bolts, finished [Annex Attached Table 1.1]
45	[日标] JIS B 1180 (ISO 4015) - 1994	六角頭螺栓細杆產品等級：B級 [Table 9] Effective diameter Hexagon head bolts,Porduct Grade B, [Table 9]
46	[汽标代号] Q 150B	六角頭螺栓 Hexagon head bolts
47	[汽标代号] Q 151	六角頭螺栓 Hexagon head bolts
48	[汽标代号] Q 151B	六角頭細牙螺栓 Hexagon head bolts - Fine Thread
49	[汽标代号] Q 151C	六角頭較細牙螺栓 Hexagon head bolts - Fine Thread
50	[機械行業] JB /ZQ 4322 - 2006	六角頭預應力螺栓 Hex head prestressed bolts
51	[機械行業] JB /ZQ 4323 - 2006	六角頭粗杆螺栓 B級 Hexagon Head Bolts - Product Grade B
52	[美标] ASME/ANSI B 18.2.3.5M - 2006	米制六角頭螺栓 (SAE J1199, ASTM F568) Metric Hex Head Bolts (SAE J1199, ASTM F568) 供應商(1)
53	[美标] ASME/ANSI B 18.2.3.3M - 2007 (R2014)	米制粗六角螺釘 (F568M, F738M, F468M) Metric heavy hex screws (F568M, F738M, F468M)
54	[美标] ASME/ANSI B 18.2.3.1M - 2005	米制六角頭粗杆螺栓 Metric hex cap screws
55	[美标] ASME/ANSI B 18.6.7M - 1998	米制六角頭螺釘Table14 Metric hexagon head screws
56	[美标] ASME/ANSI B 18.2.1 - 1981	六角頭粗杆螺栓 [Table 4] Hex Cap Screws
57	[美标] ASME/ANSI B 18.2.1 - 1981	大六角粗杆螺栓 [Table 5] Heavy Hex Screws
58	[歐标] EN 3008 - 1998	航空航天六角頭螺栓，細杆，長螺紋，NI-P100HT(Inconel 718)耐熱鎳基合金，強度等級：1275Mpa（室溫）/650℃ Aerospace Series - Bolts, Hexagon Head, Relieved Shank, Long Thread, in Heat Resisting Nickel Base Alloy NI-P100HT (Inconel 718) - Classification: 1275 MPa (at Ambient Temperature)/650°C
59	[歐标] EN 3009 - 1998	六角頭螺栓，細杆，長螺紋，NI-P100HT(Inconel 718)耐熱鎳基合金，鍍銀，強度等級：1275Mpa（室溫）/650℃ Aerospace Series - Bolts, Hexagon Head, Relieved Shank,Long Thread, in Heat Resisting Nickel Base Alloy NI-P100HT (Inconel 718) - Classification: 1275 MPa (at Ambient Temperature)/650°C
60	[歐标] EN 3007 - 1996	航空航天 - 六角頭螺栓，細杆，長螺紋，FE-PA92HT(A286)耐高溫鋼, 鍍銀，強度等級：900Mpa（室溫）/650℃ Aerospace Series - Bolts, Hexagon Head, Relieved Shank, Long Thread, In Heat Resisting Steel FE-PA92HT (A286), Silver Plated - Classification: 900 MPa (at Ambient Temperature)/650℃
61	[歐标] EN 2938 - 1995	航空航天 - 六角頭螺釘全螺紋耐熱鋼FE-PA92HT(A286)，鍍銀 - 等級：900MPa(環境溫度)/650℃ Aerospace series - Screws, Hexagon Head, Threaded to Head, in Heat Resisting Steel FE-PA92HT (A286), Silver Plated - Classification: 900 MPa (at Ambient Temperature)/650 °C
62	[歐标] EN 3006 - 1994	航空航天 - 六角頭螺栓，細杆，長螺紋，FE-PA92HT(A286)耐熱鋼, 強度等級：900Mpa（室溫）/650℃ Aerospace Series - Bolts, Hexagon Head, Relieved Shank, Long Thread, In Heat Resisting Steel FE-PA92HT (A286), Classification: 900 MPa (at Ambient Temperature)/650℃
63	[歐标] EN 24014 - 1991	六角頭螺栓產品等級：A和B級 Hexagon head bolts - Product grades A and B
64	[歐标] EN 24015 - 1991	六角頭細杆螺栓（細杆直徑約等于中徑）- 產品等級：B級 Hexagon Head Bolts - Product Grade B - Reduced Shank (Shank Diameter ≈ Pitch Diameter)
65	[歐标] EN 24016 - 1991	六角頭螺栓產品等級C Hexagon Head Bolls: Product Grade C
66	[意大利] UNI 5737 - 1977	外六角螺栓 Hexagon Cap Screw, Partially Threaded Shank, ISO Metric Coarse Thread Pitch - Product Grade A 供應商(1)
67	[意大利] UNI 6420 - 1969	六角頭螺栓 Hexagon screws for manufacture of railway and tramway rolling stock - ISO metric coarse thread - Finish A
68	[法國] NF E 25-112 - 2001	六角頭螺栓 A和B級 Hexagon Head Bolts - Product Grades A And B
69	[法國] NF E 25-115-1 - 2001	C級六角頭螺栓 Hexagon Head Bolts - Grade C
70	[法國] NF E 25-113 - 1992	B級六角頭細杆螺栓 Hexagon Head Bolts - Product Grade B - Reduced Shank
71	[法國] NF L 22-145 - 1985	六角頭承拉螺釘米制螺紋4g Bolt, Hexagonal Head, For Tensile Application, ISO Thread-4g Class
72	[法國] NF E 27-711 - 1982	六角頭螺栓 8.8級、10.9級 Hexagon Head Bolts
73	[化工] HG /T 20613 (GB5782) - 2009	六角頭粗杆半牙螺栓(粗牙) A級和B級 Hexagon Bolt, Coarse thread, Product grade A and B 供應商(3)
74	[化工] HG /T 20634 (GB5782) - 2009	法蘭管用六角螺栓 Hexagon bolts for flange pipe 供應商(4)
75	[化工] HG /T 20634 - 1997	鋼制管法蘭用六角螺栓 Hexagon Bolts For Steel Pipe Flange 供應商(4)
76	[化工] HG /T 20635 - 2009	法蘭管用六角螺栓 Hexagon bolts for flange pipe
77	[英标] BS 4190 - 2014	六角頭粗制螺栓 [Table 5] Iso Metric Black Hexagon Head Bolts [Table 5] 供應商(1)
78	[英标] BS 4190 - 2001	六角頭粗制螺栓 [Table 10] Iso Metric Black Hexagon Head Bolts [Table 10] 供應商(1)
79	[英标] BS 3692 - 2014	米制精制六角頭螺栓 Metric Precision Hexagon Bolts
80	[英标] BS 4190 - 2014	米制粗制六角頭螺栓 - 僅車削支承面或支承面和杆部車削 [Table 6] Iso Metric Hexagon Head Bolts - Faced Under Head Or Faced Under Head And Turned On Shank [Table 6]
81	[英标] BS 3692 - 2001	米制精制六角頭螺栓 Metric Precision Hexagon Bolts
82	[英标] BS 4190 - 2001	米制粗制六角頭螺栓 - 僅車削支承面或支承面和杆部車削 [Table 11] Iso Metric Hexagon Head Bolts - Faced Under Head Or Faced Under Head And Turned On Shank [Table 11]
83	[英标] BS 1981 - 1991	凹腦六角頭螺釘Table18 Plain Hexagon Head Screws
84	[英标] BS 1981 - 1991	六角頭細杆半牙螺釘Table18 Plain Hexagon Head Screws
85	[英标] BS 1083 - 1965	精制六角頭螺栓, 墊圈面, 半牙 - B.S.W. & B.S.F. 英制螺紋 Precision Hexagon Head Bolts - Washer Faced - B.S.W. & B.S.F. threads
86	[英标] BS 450 - 1958	英制六角頭螺釘 - B.S.W. & B.S.F. 螺紋 [Table 9] Hexagon Head Machine Screws with B.S.W. & B.S.F. Threads [Table 9]
87	[英标] BS 916 - 1953	英制六角頭螺栓 - 粗制 - 镦鍛 [Table 1] Hexagon Head Bolt with B.S.Threads [Table 1]
88	[英标] BS 916 - 1953	英制六角頭螺栓 - 粗制 - 車削支承面或車削支承面和光杆 [Table 2] Hexagon bolts faced under head, and faced under head and turned on shank with B.S.Threads - Black [Table 2]
89	[英标] BS 1769 - 1951	大六角頭車削螺栓(統一螺紋) Unified hexagon head faced bolts
90	[澳标] AS 1559 - 2018	塔式建築用熱鍍鋅螺栓 ISO Metric Hot-dip Galvanized Hexagon Bolts For Tower Construction
91	[澳标] AS 1110.1 - 2000	米制六角頭螺栓 A和B級 ISO Metric Hexagon Head Bolts - Product Grades A And B
92	[澳标] AS 1111.1 - 2000	米制六角頭螺栓 C級 ISO Metric Hexagon Head Bolts - Product Grade C
93	[澳标] AS /NZS 2465 - 1999 (R2016)	美制六角螺栓 - UNC, UNF螺紋 Hexagon Bolts (UNC and UNF threads)
94	[澳标] AS /NZS 2451 - 1998	英制螺紋六角頭螺栓 Bolts With Britishstandard Whitworth Threads (Rationalized Series)
95	[澳标] AS /NZS 1559 - 1997	塔式建築用熱鍍鋅螺栓 ISO Metric Hot-dip Galvanized Hexagon Bolts For Tower Construction
96	[台灣] CNS 3121 - 1998	六角頭螺栓（精制及半精制） Hexagon Head Bolts - Finished And Semi-Finished
97	[台灣] CNS 3123 - 1987	粗制六角頭螺栓 C級 Hexagon Head Bolts, Regular, Metric Thread
98	[俄标] GOST 53664 - 2009	橋用高強度緊固件六角頭螺栓 Hexagon Head Bolts
99	[俄标] GOST R 50791 - 1995	B級六角頭細杆螺栓 Hexagon Head Bolts-Product Grade B-Reduced Shank(Shank Diameter≈Pitch Diameter)
100	[俄标] GOST 50794 - 1995	六角頭螺釘產品等級C Hexagon Head Screws - Product Grade C