Hex Trim Head Machine Screw, Plated

Machine screws are uniformly threaded fasteners with a blunt end that are used with a threaded nut or threaded into a tapped hole. The hex indented head is less prone to stripping than some other drive types. These fasteners are available in a zinc plated finish.

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Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsType 2A Threads for Machine Screws

Type 2A Threads for Machine Screws dimensions

ASME B1.1 (2008)
Nominal Size	Threads per Inch	Allowance	Major Diameter		Pitch Diameter			Stress Area in²	Tensile Strength, ^a lb., min. (STEEL screws only)
			Major Diameter		Pitch Diameter
			Max	Min	Max	Min	Tolerance
#0	80	0.0005	0.0595	0.0563	0.0514	0.0496	0.001762	0.00180	-
#1	64	0.0006	0.0724	0.0686	0.0623	0.0603	0.001970	0.00263	-
#1	72	0.0006	0.0724	0.0689	0.0634	0.0615	0.001899	0.00278	-
#2	56	0.0006	0.0854	0.0813	0.0738	0.0717	0.002127	0.00370	-
#2	64	0.0006	0.0854	0.0816	0.0753	0.0733	0.002040	0.00394	-
#3	48	0.0007	0.0983	0.0938	0.0848	0.0825	0.002302	0.00487	-
#3	56	0.0007	0.0983	0.0942	0.0867	0.0845	0.002191	0.00523	-
#4	40	0.0008	0.1112	0.1061	0.0950	0.0925	0.002507	0.00604	360
#4	48	0.0007	0.1113	0.1068	0.0978	0.0954	0.002361	0.00661	396
#5	40	0.0008	0.1242	0.1191	0.1080	0.1054	0.002562	0.00796	470
#5	44	0.0007	0.1243	0.1195	0.1095	0.1070	0.002484	0.00830	498
#6	32	0.0008	0.1372	0.1312	0.1169	0.1141	0.002820	0.00909	550
#6	40	0.0008	0.1372	0.1321	0.1210	0.1184	0.002614	0.01015	609
#8	32	0.0009	0.1631	0.1571	0.1428	0.1399	0.002916	0.01400	850
#8	36	0.0008	0.1632	0.1577	0.1452	0.1424	0.002804	0.01474	884
#10	24	0.0010	0.1890	0.1818	0.1619	0.1586	0.003319	0.01750	1050
#10	32	0.0009	0.1891	0.1831	0.1688	0.1658	0.003004	0.02000	1200
#12	24	0.0010	0.2150	0.2078	0.1879	0.1845	0.003400	0.02420	1450
#12	28	0.0010	0.2150	0.2085	0.1918	0.1886	0.003224	0.02580	1548
1/4	20	0.0011	0.2489	0.2408	0.2164	0.2127	0.003731	0.03180	1900
1/4	28	0.0010	0.2490	0.2425	0.2258	0.2225	0.003322	0.03640	2200
5/16	18	0.0012	0.3113	0.3026	0.2752	0.2712	0.004041	0.05240	3150
5/16	24	0.0011	0.3114	0.3042	0.2843	0.2806	0.003660	0.05800	3480
3/8	16	0.0013	0.3737	0.3643	0.3331	0.3287	0.004363	0.07750	4650
3/8	24	0.0011	0.3739	0.3667	0.3468	0.3430	0.003804	0.08780	5268
1/2	13	0.0015	0.4985	0.4876	0.4485	0.4435	0.004965	0.14190	8500
1/2	20	0.0013	0.4987	0.4906	0.4662	0.4619	0.004288	0.15990	9594

Tolerance on Length	Nominal Screw Size	Nominal Screw Length
		Up to 1/2 in., incl.	Over 1/2 to 1 in., incl.	Over 1 to 2 in., incl.	Over 2 in.
	0 thru 12	-0.02	-0.03	-0.06	-0.09
L	1/4 thru 3/4	-0.03	-0.03	-0.06	-0.09

^a Tensile strength values are based on 60,000 psi and apply to carbon steel screws and SEMS only. Hex and Hex Washer head machine screws of sufficient length may be wedge tensile tested. Other head styles may be axial tensile tested.
All dimensions are in inches.

Dimensional SpecificationsHex Trim Head for Machine Screws

Hex Trim Head for Machine Screws dimensions

ASME B18.6.3-2013
Nominal Size	A		W	H
	Width Across Flats		Width Across Corners	Height of Head
	Max	Min	Min	Max	Min
#2	0.125	0.120	0.134	0.050	0.040
#4	0.188	0.188	0.202	0.060	0.049
#5	0.188	0.181	0.202	0.070	0.058
#6	0.250	0.244	0.272	0.093	0.080
#8	0.250	0.244	0.272	0.110	0.096
#10	0.312	0.305	0.340	0.120	0.105
#12	0.312	0.305	0.340	0.155	0.139
1/4	0.375	0.367	0.409	0.190	0.172
5/16	0.500	0.489	0.545	0.230	0.208
3/8	0.562	0.551	0.614	0.295	0.270
1/2	0.750	0.735	0.820	0.400	0.367

All dimensions are in inches.

Hex Trim Head Machine Screw, Plated

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Diameter	Thread Pitch	Length	Item #	Availability	Price	Quantity
#6	32	3/8	MHHP6320037	In Stock	$0.16247/EA	EA	EA
#6	32	1/2	MHHP6320050	In Stock	$0.18399/EA	EA	EA
#6	32	3/4	MHHP6320075	In Stock	$0.18955/EA	EA	EA
#6	32	1	MHHP6320100	In Stock	$0.21264/EA	EA	EA
#8	32	3/8	MHHP8320037	In Stock	$0.14917/EA	EA	EA
#8	32	1/2	MHHP8320050	In Stock	$0.28252/EA	EA	EA
#8	32	3/4	MHHP8320075	In Stock	$0.32052/EA	EA	EA
#8	32	1	MHHP8320100	In Stock	$0.35886/EA	EA	EA
#10	24	1/2	MHHP1020050	In Stock	$0.18337/EA	EA	EA
#10	24	3/4	MHHP1020075	In Stock	$0.31601/EA	EA	EA
#10	24	1	MHHP1020100	In Stock	$0.24774/EA	EA	EA
#10	24	1 1/4	MHHP1020125	In Stock	$0.30147/EA	EA	EA
#10	24	1 1/2	MHHP1020150	In Stock	$0.09758/EA	EA	EA
#10	32	1/2	MHHP1030050	In Stock	$0.34551/EA	EA	EA
#10	32	3/4	MHHP1030075	In Stock	$0.20223/EA	EA	EA
#10	32	1	MHHP1030100	In Stock	$0.05126/EA	EA	EA
#10	32	1 1/4	MHHP1030125	In Stock	$0.40019/EA	EA	EA
#10	32	1 1/2	MHHP1030150	In Stock	$0.41952/EA	EA	EA

Hex Trim Head Machine Screw, Plated

Technical Data

Dimensional Specifications

Dimensional SpecificationsType 2A Threads for Machine Screws

Dimensional SpecificationsHex Trim Head for Machine Screws

Diameter

Thread Pitch

Length

Thread Type

Width Across Flats

Drive Size