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Metric 120°Countersunk Head Square Neck Bolts

BS 4933 - 1973

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d

M10

M12

M16

M20

M24

P	Pitch
d_s	max
d_s	min
d_k	max
d_k	min
k	max
k	min
s	max
s	min

0.8	1	1.25	1.5	1.75	2	2.5	3
5.48	6.48	8.58	10.58	12.7	16.7	20.84	24.84
4.52	5.52	7.42	9.42	11.3	15.3	19.16	23.16
11.25	13.5	18	22.5	27	36	45	54
8.65	10.38	13.84	17.3	20.76	27.68	34.6	41.52
4.25	4.75	6.25	7.9	9.4	12.1	15.1	17.6
3.5	4	5.5	7	8.5	11	14	16.5
5.48	6.48	8.58	10.58	12.7	16.7	20.84	24.84
4.52	5.52	7.42	9.42	11.3	15.3	19.16	23.16

①,if L≤125mm时，then b=2d+6；
if 125＜L≤200mm时，then b=2d+12；
if L＞200mm时，then b=2d+25；
②,Standard nominal lengths are not specified in this standard, it may however, as a result of experience of usage,be possible to include these details at a future revision.

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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	[GB] GB /T 10 - 1988	Flat Countersunk Square Neck Bolts
19	[BS] BS 4933 - 1973	Metric 90°Countersunk Square Bolts
20	[GB] GB /T 10 - 2013	Countersunk Head Square Neck Bolts
21	[BS] BS 325 - 1947	Black Countersunk Square Neck Bolts For Iron
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