Material

BS 1981 - 1991 Cross Recessed Pan Head Machine Screws

Unit: inch

英标BS 1981 - 1991 BS1981 1981BS Cross Recessed Pan Head Machine Screws

Screw Thread
d

(3#)

10#

(12#)

1/4

5/16

3/8

7/16

1/2

d_k	max
	min
k	max
	min
Penetration depth	max
	min
m	Nominal Size
Socket No.

0.167	0.193	0.219	0.245	0.27	0.322	0.373	0.425	0.492	0.615	0.74	0.863	0.987
0.155	0.18	0.205	0.231	0.256	0306	0.357	0.407	0.473	0.594	0.716	0.838	0.958
0.053	0.06	0.068	0.075	0.082	0.096	0.11	0.125	0.144	0.178	0.212	0.247	0.281
0.045	0.051	0.058	0.065	0.072	0.085	0.099	0.112	0.13	0.162	0.195	0.227	0.26
0.053	0.062	0.072	0.068	0.076	0.092	0.108	0.117	0.137	0.164	0.201	0.224	0.246
0.043	0.052	0.062	0.050	0.058	0.074	0.09	0.099	0.119	0.146	0.183	0.206	0.228
0.096	0.104	0.114	0.146	0.154	0.169	0.185	0.246	0.265	0.333	0.369	0.392	0.412
1	1	1	2	2	2	2	3	3	4	4	4	4

Similar Standards

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7	[GB] GB 973 - 1976	Crosss Recessed Mushroom Screws Suppliers(2)
8	[DIN] DIN 967 - 2002	Cross Recessed Pan Head Screws With Collar—Product Grade A Suppliers(1)
9	[DIN] DIN 7985 - 1990	Cross Recessed Raised Cheese Head Screws Suppliers(3)
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24	[ASME/ANSI] ANSI/ASME B 18.6.3 - 2010	Cross recessed pan head machine screws Suppliers(1)
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29	[ASME/ANSI] ANSI/ASME B 18.6.3 - 2013	Recess Dimensions for Pan Head Screws (Types IA, III, and VI)
30	[ASME/ANSI] ANSI/ASME B 18.6.3 - 2013	Recess Dimensions for Truss Head Screws
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33	[UNI] UNI 7687	Recessed Raised Cheese (Filister) Head Screws-ISO Metric Coarse Thread - Product Grade A
34	[NF] NF E 25-121 - 1994	Pan Head Screws With Type H Or Type Z Cross Recess - Product A
35	[NF] NF E 25-122 - 1984	PZ Drives Round Head Screws With Collar
36	[NF] NF E 25-129 - 1985	Cross Recessed Mushroom Head Screws
37	[BS] BS 450 - 1958	Cross Recessed Pan Head Screws
38	[BS] BS 450 - 1958	Cross Recessed Raised Cheese Head Screws
39	[AS] AS /NZS 1427 - 1996	ISO metric cross-recess pan head screws
40	[CNS] CNS 4559 - 1981	Cross Recessed Oval Cheese Head Screws
41	[CNS] CNS 9675 - 1988	Cross Recessed Mushroom Head Machine Screws
42	[CNS] CNS 9676 - 1988	Cross Recessed Round Head Screws
43	[CNS] CNS 9677 - 1988	Corss Recessed Oval Pan Head Machine Screws
44	[CNS] CNS 9674 - 1988	Cross Recessed Pan Head Screws
45	[KS] KS B 1023 - 2001	Cross Recessed Pan Head Screws
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