Click Specification

Hexagon Socket Button Head Screws

GB /T 70.2 - 2000

Display drawing:

Download CAD Model^*

^*Models with different eras.

Screw Thread
d

M10

M12

M16

P	Pitch
a	max
	min
d_a	max
d_k	max
	min
e ^①	min
k	max
	min
r	min
s	Nominal Size
	max	12.9
		Other performance grades
	min
t	min
w	min
Minimum tensile load(N)	8.8
	10.9
	12.9

0.5	0.7	0.8	1	1.25	1.5	1.75	2
1	1.4	1.6	2	2.5	3	3.5	4
0.5	0.7	0.8	1	1.25	1.5	1.75	2
3.6	4.7	5.7	6.8	9.2	11.2	14.2	18.2
5.7	7.60	9.50	10.50	14.00	17.50	21.00	28.00
5.4	7.24	9.14	10.07	13.57	17.07	20.48	27.48
2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43
1.65	2.20	2.75	3.3	4.4	5.5	6.60	8.80
1.40	1.95	2.50	3.0	4.1	5.2	6.24	8.44
0.1	0.2	0.2	0.25	0.4	0.4	0.6	0.6
2	2.5	3	4	5	6	8	10
2.045	2.56	3.071	4.084	5.084	6.095	8.115	10.115
2.060	2.58	3.080	4.095	5.140	6.140	8.175	10.175
2.020	2.52	3.020	4.020	5.020	6.020	8.025	10.025
1.04	1.3	1.56	2.08	2.6	3.12	4.16	5.2
0.2	0.3	0.38	0.74	1.05	1.45	1.63	2.25
3220	5620	9080	12900	23400	37100	53900	100000
4180	7300	11800	16700	30500	48200	70200	130000
4910	8560	13800	19600	35700	56600	82400	154000

①,e_min=1.14s_min。
②,GB/T 3098 . 1 specifies 80% of the value .

Alternative history

GB /T 70.2 - 2000 GB /T 70.2 - 2008 GB /T 70.2 - 2015

Suppliers

Best price if from GlobalFastener.com.

Suzhou Yongchuang Fastener Factory

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

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

Suzhou Hanlinyu Precision Hardware Co., Ltd.

Amy Li
+86-13771867939
+86-512-65868465

Material: Carbon steel, Stainless steel; Grade: 8.8; Specifications: M3-M16

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.

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