Click Specification

(Non-preferred) dimensions in parentheses.

Flat Countersunk Square Neck Bolts

GB /T 10 - 1988

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

M16

M20

P	Pitch
b	L≤125
b	125＜L≤200
d_k	max
d_k	min
k	max
k	min
s	max
s	min
x	max

1.00	1.25	1.50	1.75	2.00	2.50
18	22	26	30	38	46
/	28	32	36	44	52
11.05	14.55	17.55	21.65	28.65	36.80
9.95	13.45	16.45	20.35	27.35	35.20
6.10	7.25	8.45	11.05	13.05	15.05
5.3	6.35	7.55	9.95	11.95	13.95
6.36	8.36	10.36	12.43	16.43	20.52
5.84	7.80	9.80	11.76	15.76	19.72
2.5	3.2	3.8	4.2	5	6.3

Weight of per 1000 steel products(≈kg)

Length of Thread b

①,The diameter of the unthreaded part is approximately equal to the pitch diameter or major diameter of the thread.

Alternative history

GB 10 - 1976 GB /T 10 - 1988 GB /T 10 - 2013

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Similar Standards

1	[DIN] DIN 608 - 1981	Flat Countersunk Square Neck Bolts With Short Square View Suppliers
2	[DIN] DIN 608 - 2007	Flat Countersunk Short Square Neck Bolts，With Short Square View Suppliers
3	[DIN] DIN 608 - 2010	Flat Countersunk Head Square Neck Bolts With Short Square View Suppliers
4	[ASME/ANSI] ASME/ANSI B 18.5 - 2008	Large Countersunk Square Neck Bolts [Table9]
5	[ASME] ASME B 18.9 - 2012	No.3 Regular Head Plow Bolts (Round, Countersunk, Square Neck) (A307, F468, F593, SAE J 429)
6	[ASME] ASME B 18.5 - 2012 (2017)	Flat Countersunk Head Elevator Bolts [Table9]
7	[ASME] ASME B 18.5 - 2012 (2017)	114-deg Countersunk Square Neck Bolts,(Inch Series) [Table 8] (A307, SAE J429, F468, F593)
8	[ASME/ANSI] ASME/ANSI B 18.5 - 2012	114-deg Countersunk Square Neck Bolts,(Inch Series) [Table 8] (A307, SAE J429, F468, F593)
9	[DIN] DIN 605 - 2010	Flat Countersunk Head Square Neck Bolts With Long Square
10	[ASME/ANSI] ASME/ANSI B 18.5 - 2008	114° Countersunk square neck bolts
11	[ASME] ASME B 18.9 - 2012	No.3 Repair Head Plow Bolts (Round, Countersunk, Square Neck) (A307, F468, F593, SAE J 429)
12	[ASME/ANSI] ASME/ANSI B 18.9 - 2007	Plow Bolts(Round,Countersunk,Square Neck)
13	[ASME/ANSI] ASME/ANSI B 18.5 - 2008	Flat countersunk head elevator bolts
14	[ASME/ANSI] ASME/ANSI B 18.5 - 2012	Large Countersunk Square Neck Bolts [Table9]
15	[DIN] DIN 605 - 1981	Flat countersunk head square neck bolts with long square
16	[UNI] UNI 6104 - 1975	Flat Countersunk Square Neck Bolts - Grade C
17	[GB] GB 10 - 1976	Countersunk head square neck bolts
18	[BS] BS 4933 - 1973	Metric 90°Countersunk Square Bolts
19	[GB] GB /T 10 - 2013	Countersunk Head Square Neck Bolts
20	[BS] BS 325 - 1947	Black Countersunk Square Neck Bolts For Iron
21	[BS] BS 4933 - 1973	Metric 120°Countersunk Head Square Neck Bolts
22	[GB] GB /T 21934 - 2008	Earth-Moving Machinery - Plough Bolt
23	[BS] BS 325 - 1947	Black Counersunk Square Neck Bolts For Woodwork
24	[CNS] CNS 4418 - 1981	Countersunk Head Square Neck Bolt
25	[CNS] CNS 4419 - 1981	120°Flat Countersunk Head Short Square Neck Bolts