Click Specification

(Non-preferred) dimensions in parentheses.

Hexagon Socket Head Cap Screws

GB 70 - 1976

Display drawing:

Download CAD Model^*

^*Models with different eras.

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs

Default density g/cm³

Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.

Screw Thread
d

M10

M12

(M14)

M16

P	Pitch
d_k	max
d_k	min
k	Nominal Size
	max
	min
s	Nominal Size
	max
	min
t	min
t	max

0.7	0.8	1	1.25	1.5	1.75	2	2
7	8.5	10	12.5	15	18	21	24
6.8	8.3	9.8	12.26	14.76	17.76	20.72	23.72
4	5	6	8	10	12	14	16
4.24	5.24	6.24	8.29	10.29	12.35	14.35	16.35
3.76	4.76	5.76	7.71	9.71	11.65	13.65	15.65
3	4	5	6	8	10	12	12
3.12	4.16	5.16	6.16	8.2	10.2	12.24	12.24
3.02	4.03	5.03	6.03	8.04	10.04	12.05	12.05
2	2.5	3	4	5	6	7	8
2.6	3.1	3.6	4.75	5.75	6.75	7.9	8.9

Weight of per 1000 steel products(≈kg)

Length of Thread b

Screw Thread
d

(M18)

M20

(M22)

M24

(M27)

M30

M36

M42

P	Pitch
d_k	max
d_k	min
k	Nominal Size
	max
	min
s	Nominal Size
	max
	min
t	min
t	max

2.5	2.5	2.5	3	3	3.5	4	4.5
27	30	33	36	40	42	50	58
26.72	29.72	32.66	35.66	39.66	41.66	49.66	57.6
18	20	22	24	27	30	36	42
18.35	20.42	22.42	24.42	27.42	30.42	36.5	42.5
17.65	19.58	21.58	23.58	26.58	29.58	35.5	41.5
14	14	17	17	19	19	24	27
14.24	14.24	17.24	17.24	19.28	19.28	24.28	27.28
14.05	14.05	17.05	17.05	19.06	19.06	24.06	27.06
9	10	11	12	14	15	18	21
9.9	10.9	12.1	13.1	15.1	16.1	19.1	22.3

Weight of per 1000 steel products(≈kg)

Length of Thread b

Alternative history

GB 70 - 1976 GB 70 - 1985 GB /T 70.1 - 2000 GB /T 70.1 - 2008

Suppliers

Best price if from GlobalFastener.com.

Wuxi Zeke Hardware Manufacturing Co., Ltd.

Mr.Chen
+86-18651586798
+86-510-82390981

Material: Zirconium Zr-1(R60700), Zr-3(R60702), Zr-5(R60705), Zr-0(R60001), Zr-2(R60802), Zr-4(R60804), Titanium TA1-TA36, TB2-TB17, TC1-TC32, Corrosion resistant alloy Incoloy 800, 800H, 800HT, 825, 925, Hastelloy B, B-2, B-3, B-4, C, C276, C-4, C-22, G-50, X, G, G-3, G-30, C-2000, Inconel600, 601, 690, 625, 622, 686, 718, 703, X750, Monel400, Monel K500, Pure nickel Nickel 200, Nickel 201, High-temperature alloy Nimonic 75, 80A, 90, 901, 20Cb-3 alloy, A286(Gr660), Cr20Ni80, Super stainless steel XM-19, 254SMO(F44), 1.4529, 25-6MO, 303, 304, 304L, 309, 309L, 310, 310S, 316, 316L, 316Ti, 904L, 317, 317L, 321, 347, Duplex stainless steel 2205(F51、F60), 2507(F53), S32760(F55), 1Cr13, 2Cr13, 3Cr13, 630(17-4PH), 631(17-7PH), 660, Grade: 8.8, 10.9, 12.9, 14.9, A2-70, A2-80, A3-70, A3-80, A4-70, A4-80, A4L-80, A5-80, D2-70, D2-80, D2-100, D4-70, D4-80, D4-100, D6-70, D6-80, D6-100, D8-70, D8-80, D8-100, C1-70, C1-110, C4-70, C3-80, F1-45, F1-60 High temperature and high pressure ASTMA193/A194 B5, B6, B6X, B7, B7M, B16, B8, B8C, B8M, B8P, B8T, B8LN, B8MLN, B8CLN, B8ML4CuN, 1, 2, 2H, 2HM, 3, 4, 4L, 6, 6F, 7, 7L, 7M, 8, 8C, 8M, 8T, 8F, 8P, 8N, 8MN, 8R, 8S, 8LN, 8MLN, 8MLCuN, 9C, 16

Shanghai ATM Precision Fastening Technology Co., Ltd.

Xu Hai
+86-18621311857
+86-21-59766477

Materials: 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, MP35N, 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; stainless steel, alloy steel, titanium alloys, nickel-based alloys, high-temperature alloys, corrosion-resistant alloys, nickel-cobalt alloys, special alloys, and other special materials per customer specifications. Grades: 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; Other grades available upon request. Specifications: M3–M120, 1/4"–4". No limitation on product diameter or length; custom non-standard parts can be manufactured upon request. Surface Treatments: passivation, black oxide, phosphating, electrophoretic coating, zinc plating, nickel plating, chrome plating, cadmium plating, gold plating, silver plating, tin plating, copper plating, zinc diffusion, marine zinc, aluminum diffusion, aluminum spraying, Dacromet, Geomet, Teflon coating, zinc-nickel alloy plating, nickel-cobalt alloy plating, hot-dip galvanizing, ceramic composite coatings, molybdenum disulfide coating, tungsten disulfide coating, nano-coatings, and other surface finishes per customer requirements.

GotopScrews International Co., Limited

Manager Zhuang
+86-86-13008864675
+86-86-755-89505088

aterial: carbon steel, alloy steel, stainless steel, copper, aluminum, titanium; Specifications: M0.6~M6; Length: 1~60mm; Surface Treatment: galvanizing, nickel plating, zinc nickel alloy, electrophoresis, dacromet, CD grain, PVD, etc.

Suzhou Yongchuang Fastener Factory

Mr. Tang
+86-15298892886
+86-512-66700967

Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm

Yuyao Hutson Metal Product Co., Ltd.

Ma Huazhen/Xu Tianyang
+86-13095941973
+86-574-62761228

Material: stainless steel, A2-70, A2-80, A4-70, A4-80, A2(302, 303, 304), A4(316), 410, 430; Complete specifications

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Similar Standards

1	[ISO] ISO 4762 - 1997	Hexagon Socket Head Cap Screws View Suppliers
2	[DIN] DIN 7984 - 2021	Hexagon Socket Head Cap Screws with Low Head with Reduced Loadability View Suppliers
3	[DIN] DIN 7984 - 1985	Hexagon Socket Thin Head Cap Screws View Suppliers
4	[ASME] ASME B 18.3 (T1) - 2012	Hexagon Socket Head Cap Screws [Table 1] (ASTM A574 / F837) View Suppliers
5	[DIN] DIN 7984 - 2009	Hexagon Socket Head Cap Screws with Low Head View Suppliers
6	[DIN] DIN 912 - 1983	Hexagon Socket Head Cap Screws View Suppliers
7	[DIN] DIN 6912 - 2002	Hexagon Socket Thin Head Cap Screws with Pilot Recess View Suppliers
8	[ASME] ASME B 18.3 - 2003 (R2008)	Hexagon Socket Head Cap Screws View Suppliers
9	[DIN] DIN 7984 - 2002	Hexagon Socket Thin Head Cap Screws View Suppliers
10	[ASME/ANSI] ASME/ANSI B 18.3 - 1986	Hexagon Socket Head Cap Screws View Suppliers
11	[DIN] DIN 6912 - 1985	Hexagon Socket Thin Head Cap Screws with Pilot Recess View Suppliers
12	[DIN EN ISO] DIN EN ISO 4762 - 2004	Hexagon Socket Head Cap Screws View Suppliers
13	[DIN] DIN 7964 (E) - 1990	Reduced Shanke Bolts and Screws with Coarse Thread - Hexagon Socket Head View Suppliers
14	[DIN] DIN 6912 - 2021	Hexagon Socket Head Cap Screws with Reduced Loadability - Low Head, with Centre View Suppliers
15	[DIN EN ISO] DIN EN ISO 12474 - 2011	Hexagon Socket Head Cap Screws with Metric Fine Pitch Thread View Suppliers
16	[DIN] DIN 6912 - 2009	Hexagon Socket Head Cap Screws with Centre, with Low Head View Suppliers
17	[ISO] ISO 4762 - 2004	Hexagon Socket Head Cap Screws View Suppliers
18	[DIN] DIN 7984 - 2022	Hexagon Socket Head Cap Screws with Low Head with Reduced Loadability View Suppliers
19	[DIN] DIN 251	Hexagon Socket Head with Serrated Flange Screws View Suppliers
20	[UNI] UNI 5931 - 1984	Hexagon Socket Cheese Head Screws View Suppliers
21	[GB] GB /T 70.1 - 2000	Hexagon Socket Head Cap Screws View Suppliers
22	[GB] GB 70 - 1985	Hexagon Socket Cap Head Screws View Suppliers
23	[GB] GB /T 70.1 - 2008	Hexagon Socket Head Cap Screws View Suppliers
24	[DIN] DIN 6929 (EE) - 2013	Hexagon Socket Head Cap Screws
25	[ISO] ISO 21269 - 2004	Hexagon Socket Head Cap Screws with Metric Fine Pitch Thread
26	[ASME/ANSI] ASME/ANSI B 18.3.1M - 1986 (R2008)	Dimensions Of Metric Socket Head Cap Screws
27	[ASME/ANSI] ASME/ANSI B 18.3.1M - 1986 (R1993)	Metric Hexagon Socket Head Cap Screws
28	[ISO] ISO 12474 - 2010	Hexagon Socket Head Cap Screws with Metric Fine Pitch Thread
29	[ASME/ANSI] ASME/ANSI B 18.3 - 2003	Spline Socket Head Cap Screws
30	[ASME] ASME B 18.3 - 2003 (R2008)	Low Head Hexagon Socket Cap Screws
31	[ASME] ASME B 18.3 (T12) - 2012	Low Head Hexagon Socket Cap Screws [Table 12] (ASTM F835)
32	[JIS] JIS B 1176 - 2006	Hexagon Socket Head Cap Screws
33	[JIS] JIS B 1176 - 1988	Hexagon Socket Head Cap Screws
34	[UNI] UNI 9327 - 1988	Hexagon Socket Cheese Head Thin Screws
35	[GB] GB /T 70.6 - 2020	Hexagon Socket Head Cap Screws - Fine Pitch Thread
36	[JIS] JIS B 1176 - 2014	Hexagon Socket Head Cap Screws
37	[BS] BS 4168-1 - 1981	Metric Hexagon Socket Cheese Head Screws
38	[NF] NF L 22-224 - 1984	Hexagonal Socket Cylindrical Head Screw, Threaded to Head, with Hole for Lockwire - ISO Thread, 4g class
39	[BS] BS 2470 - 1973	Hexagon Socket Cheese Head Screws - Unified Thread
40	[NF] NF L 22-220 - 1984	Hexagonal Socket Cylindrical Head Screw with Hole for Lockwire - ISO Thread, 4h Class
41	[BS] BS 2470 - 1973	Hexagon Socket Cheese Head Cap Screws - BSW and BSF Thread
42	[NF] NF E 25-125 - 2004	Hexagon Socket Head Cap Screws
43	[BS] BS 2470 - 1973	Hexagon Socket Cheese Head Cap Screws - BA Thread
44	[AS] AS 1420 - 2008 (R2015)	ISO Metric Hexagon Socket Head Cap Screws
45	[CNS] CNS 3932 - 1998	Hexagon Socket Cheese Head Screws
46	[CNS] CNS 4555 - 1981	Hexagon Socket Cheese Head Screws
47	[CNS] CNS 4556 - 1981	Hexagon Socket Head Cap Screws Short
48	[KS] KS B 1003 - 2015 (R2020)	Hexagon Socket Head Cap Screws
49	[KS] KS B 1003 - 2000	Hexagon Socket Head Cap Screws
50	[IS] IS 2269 - 2006	Hexagon Socket Head Cap Screws