Click Specification

Hexagon Socket Set Screws (Flat Piont)

ASME B 18.3 - 2003 (R2008)

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Screw Thread
d

10#

1/4

5/16

3/8

d	Screw Diameter
PP	UNC
	UNF
	UNEF
s	Nominal Size
t	min
d_p	max
d_p	min

0.0600	0.0730	0.0860	0.0990	0.1120	0.1250	0.1380	0.1640	0.1900	0.2500	0.3125	0.3750
-	64.0	56.0	48.0	40.0	40.0	32.0	32.0	24.0	20.0	18.0	16.0
80.0	72.0	64.0	56.0	48.0	44.0	40.0	36.0	32.0	28.0	24.0	24.0
-	-	-	-	-	-	-	-	-	32.0	32.0	32.0
0.028	0.035	0.035	0.050	0.050	0.062	0.062	0.078	0.094	0.125	0.156	0.188
0.050	0.060	0.060	0.070	0.070	0.080	0.080	0.090	0.100	0.125	0.156	0.188
0.033	0.040	0.047	0.054	0.061	0.067	0.074	0.087	0.102	0.132	0.172	0.212
0.027	0.033	0.039	0.045	0.051	0.057	0.064	0.076	0.088	0.118	0.156	0.194

Screw Thread
d

7/16

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

1-1/2

1-3/4

d	Screw Diameter
PP	UNC
	UNF
	UNEF
s	Nominal Size
t	min
d_p	max
d_p	min

0.4375	0.5000	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750	1.5000	1.7500	2.0000
14.0	13.0	11.0	10.0	9.0	8.0	7.0	7.0	6.0	6.0	5.0	4.5
20.0	20.0	18.0	16.0	14.0	12.0	12.0	12.0	12.0	12.0	-	-
28.0	28.0	24.0	20.0	20.0	20.0	18.0	18.0	18.0	18.0	-	-
0.219	0.250	0.312	0.375	0.500	0.562	0.562	0.625	0.625	0.750	1.000	1.000
0.219	0.250	0.312	0.375	0.500	0.562	0.562	0.625	0.625	0.750	1.000	1.000
0.252	0.291	0.371	0.450	0.530	0.609	0.689	0.767	0.848	0.926	1.086	1.244
0.232	0.270	0.347	0.425	0.502	0.579	0.655	0.733	0.808	0.886	1.039	1.193

Alternative history

ASME B 18.3 - 2003(R2008) ASME B 18.3 - 2012

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Similar Standards

1	[DIN EN ISO] DIN EN ISO 4026 - 2004	Hexagon Socket Set Screws with Flat Point View Suppliers
2	[ISO] ISO 4026 - 1993	Hexagon Socket Set Screws with Flat Point View Suppliers
3	[DIN] DIN 913 - 1980	Hexagon Socket Set Screws with Flat Point View Suppliers
4	[ISO] ISO 4026 - 2003	Hexagon Socket Set Screws with Flat Point View Suppliers
5	[GB] GB 77 - 1985	Hexagon Socket Set Screws with Flat Point View Suppliers
6	[GB] GB /T 77 - 2000	Hexagon Socket Set Screws with Flat Point View Suppliers
7	[GB] GB /T 77 - 2007	Hexagon Socket Set Screws with Flat Point View Suppliers
8	[ASME] ASME B 18.3 (T14 FLAT) - 2012	Hexagon Socket Set Screws (Flat Piont) [Table 14] (ASTM F912 / F880)
9	[ASME/ANSI] ASME/ANSI B 18.3.6M (FLAT) - 1993	Metric Hexagon Socket Flat Point Set Screws
10	[ASME/ANSI] ASME/ANSI B 18.3.6M (FLAT) - 1986 (R2002)	Metric Hexagon Socket Flat Point Set Screws (ASTM F912M / F880M /A1-70)
11	[ASME/ANSI] ASME/ANSI B 18.3 - 2003 (R2008)	Spline Socket Set Screws (flat point)
12	[BS] BS 2470 - 1973	Hexagon Socket Set Screws with Flat Point, BSW and BSF Threads
13	[BS] BS 4168-2 - 1994	Hexagon Socket Set Screws with Flat Point
14	[JIS] JIS B 1177 (T1) - 1997	Hexagon Socket Set Screws with Flat Point
15	[JIS] JIS B 1177 - 1988	Hexagon Socket Screws with Flat Point
16	[BS] BS 2470 - 1973	Hexagon Socket Set Screws with Flat Point - Unified Thread
17	[BS] BS 2470 - 1973	Hexagon Socket Set Screws with Flat Point - BA Thread
18	[BS] BS 4168-2 - 1981	Hexagon Socket Set Screws with Flat Point
19	[JIS] JIS B 1177 (T2) - 2007	Hexagon Socket Set Screws with Flat Point
20	[UNI] UNI 5923 - 1985	Hexagon Socket Set Screws with Flat Point-ISO Metric Coarse and Fine Thread - Product Grade A
21	[NF] NF E 25-171 - 2004	Hexagon Socket Set Screws with Flat Point
22	[AS] AS /NZS 1421 - 1996	ISO Metric Hexagon Socket Set Screws - Flat Point [Table 2]
23	[CNS] CNS 4482 - 1981	Hexagon Socket Set Screws with Flat Point
24	[KS] KS B 1028 (T1) - 1990 (R2020)	Hexagon Socket Set Screw with Flat Point
25	[IS] IS 6094 (-1) - 2006	Hexagon Socket Set Screws with Flat Point