Click Specification

Black Countersunk Nibbed Bolts

BS 325 - 1947

Display drawing:

Screw Thread
d

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

PP	BSW
d_k
k₁
s

20	18	16	14	12	11	10	9	8
0.459	0.574	0.69	0.805	0.92	1.149	1.379	1.609	1.839
0.218	0.234	0.28	0.327	0.358	0.42	0.509	0.561	0.625
0.062	0.078	0.094	0.109	0.125	0.156	0.188	0.219	0.25

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Similar Standards

1	[DIN] DIN 604 - 2010	Flat Countersunk Head Nib Bolts View Suppliers
2	[DIN] DIN 604 - 2017	Flat Countersunk Head Nib Bolts View Suppliers
3	[DIN] DIN 604 - 1981	Flat Countersunk Nib Bolts View Suppliers
4	[ASME/ANSI] ASME/ANSI B 18.9 - 2007	Flat Countersunk Head Nib Bolts
5	[DIN] DIN 25195 - 2003	Railway Vehicles - Countersunk Bolts with Double Nip with Metric ISO Thread - Class C
6	[ASME/ANSI] ASME/ANSI B 18.9 - 2007	Flat Countersunk Head Nib Bolts
7	[ASME/ANSI] ASME/ANSI B 18.9 - 2007	Flat Countersunk Head Nib Bolts
8	[DIN] DIN 11014 - 1968	Agricultural Equipment; Countersunk Double-nip Bolts, Sinkings, Metric Thread, Finish
9	[ASME] ASME B 18.9 - 2012	No.7 Head Plow Bolts (Round, Countersunk, Reverse Key) [Table 2] (A307, F468, F593, SAE J 429)
10	[DIN] DIN 792 - 1976	Cylindrical Counter Sunk Screws
11	[ASME] ASME B 18.9 - 2012	No.6 Repair Head Plow Bolts (Countersunk, Heavy Key) [Table 4] (A307, F468, F593, SAE J 429)
12	[GB] GB /T 11 - 2013	Countersunk Head Nib Bolts
13	[UNI] UNI 6105 - 1967	Flat Countersunk Head Nib Bolts - Grade C
14	[GB] GB 11 - 1976	Countersunk Head Nib Bolts
15	[JIS] JIS B 1179 (T2) - 1994	Flat Countersunk Nib Bolts [Table 2]
16	[GB] GB /T 800 - 2020	Countersunk Head Double Nib Bolts
17	[GB] GB /T 800 - 1988	Countersunk Head Bolts with Double Nibs
18	[GB] GB /T 11 - 1988	Flat Countersunk Nib Bolts
19	[BS] BS 4933 - 1973	Metric 90°Countersunk Head Nibbed Bolts
20	[CNS] CNS 4697 - 1982	Countersunk Bolts with Double Nips
21	[CNS] CNS 4698 - 1982	Countersunk Double-Rib Bolts
22	[CNS] CNS 4417 - 1981	Countersunk Head Nip Bolts