Click Specification

(Non-preferred) dimensions in parentheses.

Slotted raised countersunk head machine screws. Metric series

BS 4183 (T3) - 1967

Display drawing:

Thread Size
d

M1.2

(M1.4)

M1.6

(M2.2)

M2.5

(M3.5)

d_k	max
	min
k	max
	min
r
b	min
a	max
f	Nominal Size (0.25d)
R
n	max
	min
t	max(0.5d)
	min(0.4d)

2.2	2.64	3.08	3.52	4.4	4.84	5.5	6.3	7.35	8.4
1.76	2.14	2.52	2.86	3.5	3.88	4.45	5.25	6.12	7.04
0.6	0.72	0.84	0.96	1.2	1.32	1.5	1.65	1.93	2.2
0.48	0.6	0.72	0.84	1.08	1.2	1.38	1.5	1.75	2
0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.2
/	/	/	15	16	17	18	19	20	22
0.5	0.5	0.6	0.7	0.8	0.9	0.9	1	1.2	1.4
0.25	0.3	0.35	0.4	0.5	0.55	0.6	0.75	0.9	1
2	2.5	2.5	3	4	4	5	6	6	8
0.45	0.5	0.5	0.6	0.7	0.8	0.8	1	1	1.2
0.31	0.36	0.36	0.46	0.56	0.66	0.66	0.86	0.86	1.06
0.5	0.6	0.7	0.8	1	1.1	1.25	1.5	1.75	2
0.4	0.48	0.56	0.64	0.8	0.88	1	1.2	1.4	1.6

Thread Size
d

(M4.5)

M10

M12

(M14)

M16

(M18)

M20

d_k	max
	min
k	max
	min
r
b	min
a	max
f	Nominal Size (0.25d)
R
n	max
	min
t	max(0.5d)
	min(0.4d)

9	10	12	16	20	24	28	32	36	40
7.85	8.75	10.5	14	17.5	21	24.5	28	31.5	35
2.25	2.5	3	4	5	6	7	8	9	10
2.03	2.25	2.7	3.6	4.5	5.4	6.3	7.2	8.1	9
0.2	0.2	0.25	0.4	0.4	0.6	0.6	0.6	0.6	0.8
24	25	28	34	40	46	52	58	64	70
1.5	1.6	2	2.5	3	3.5	4	4	5	5
1.1	1.25	1.5	2	2.5	3	3.5	4	4.5	5
8	10	12	16	20	25	25	32	32	40
1.2	1.51	1.91	2.31	2.81	3.31	3.31	4.37	4.37	5.37
1.06	1.26	1.66	2.06	2.56	3.06	3.06	4.07	4.07	5.07
2.25	2.5	3	4	5	6	7	8	9	10
1.8	2	2.4	3.2	4	4.8	5.6	6.4	7.2	8

Send Inquiry

Similar Standards

1	[GB] GB /T 69 - 2000	Countersunk Slotted Raised Head Screws (Common Head Style) View Suppliers
2	[GB] GB 69 - 1985	Slotted Raised Countersunk Head Screws View Suppliers
3	[GB] GB /T 69 - 2016	Slotted Raised Countersunk Head Screws View Suppliers
4	[IFI] IFI 513 - 1982	Metric Slotted Oval Countersunk Head Machine Screws
5	[ASME] ASME B 18.6.3 (T7) - 2013	82° Slotted Oval Countersunk Head Machine Screws [Table 7] (ASTM F837 / F468)
6	[ASME/ANSI] ASME/ANSI B 18.6.3 (T11) - 2010	80° Slotted undercut oval countersunk head machine screws
7	[DIN] DIN 924 - 2012	Slotted Raised Countersunk Head Screws With Dog Point
8	[ASME] ASME B 18.6.3 (T11) - 2013	82° Slotted Undercut Oval Countersunk Head Machine Screws [table 11] (ASTM F837 / F468)
9	[ASME/ANSI] ASME/ANSI B 18.6.7M - 1998	Metric slotted raised countersunk head screws
10	[ISO] ISO 2010 - 2011	Slotted Raised Countersunk Head Screws - Product Grade A
11	[DIN] DIN 964 - 1990	Slotted Raised Countersunk Head Screws
12	[DIN] DIN 924 - 2006	Slotted Raised Countersunk Head Screws With Dog Point
13	[DIN EN ISO] DIN EN ISO 2010 - 1994	Slotted Raised Countersunk Head Screws (Common Head Style) - Product Grade A
14	[ISO] ISO 2010 - 1994	Countersunk slotted raised head screws (common head style); product grade A
15	[ASME/ANSI] ASME/ANSI B 18.6.3 - 2010	Slottted Oval Countersunk Head Machine Screws
16	[JIS] JIS B 1101 - 2017	Slotted Raised Countersunk Head Screws - Table JA.5
17	[JIS] JIS B 1101 - 1996	Slotted Raised Countersunk Head Screws [Attached Table 4]
18	[NF] NF E 25-124 - 1994	Slotted Raised Countersunk Head Screws - Product Grade A
19	[BS] BS 450 - 1958	Slotted 90° Raised-Countersunk Head Screws with B.S.W. & B.S.F. Threads [Table 3]
20	[GB] GB 949 - 1988	Slotted Raised Countersunk Head Screws With Waisted Shank
21	[NF] NF F 03-006 (notch) - 1983	Railway rolling stock Grade A notched raised countersunk head screws/nuts
22	[BS] BS 1981 - 1991	Slottted Oval Countersunk Head Screws： Short Length
23	[NF] NF F 03-004 (FB) - 1983	Railway rolling stock Grade A raised countersunk notched head machine
24	[JIS] JIS B 1101 - 1996	Slotted Raised Countersunk Head Screws [Annex Attached Table 3]
25	[JIS] JIS B 1116 - 2009	Slotted Raised Countersunk Head Screws For Fine Mechanics
26	[JIS] JIS B 1101 - 2017	Slotted Raised Countersunk Head Screws - Table 10
27	[NF] NF F 03-006 (slot) - 1983	Railway rolling stock Grade A Slotted raised countersunk head screws/nuts
28	[BS] BS 1981 - 1991	Slotted Raised Countersunk Head Machine Screws
29	[GOST] GOST 17474 - 1980	Raised countersunk head screws （Slotted）, product grades A and B
30	[AS] AS /NZS 1427 - 1996	ISO metric slotted raised countersunk head screws [Table 2]
31	[CNS] CNS 9679 - 1982	Slotted Raised Countersunk Head Screws For Fine Mechanics
32	[CNS] CNS 4414 - 1981	Slotted Raised Countersunk Head Screws - Product Grade A
33	[KS] KS B 1021 (T6) - 2012 (R2022)	Slotted Raised Countersunk Head Screws【Table 6】