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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 UOM

#10

1/2

MHHP1020050

In Stock

$0.15853/EA

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#10-24 X 1/2 HEX TRIM HEAD MACHINE SCREW, PLATED

$0.15853/EA

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In Stock

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Quantity	Price
1	$0.15853/EA
1820	$0.14798/EA
7280	$0.13348/EA
32730	$0.08343/EA

#10

3/4

MHHP1020075

In Stock

$0.12119/EA

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#10-24 X 3/4 HEX TRIM HEAD MACHINE SCREW, PLATED

$0.12119/EA

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Quantity	Price
Quantity	Price
1	$0.12119/EA
1450	$0.11313/EA
5800	$0.10204/EA
26090	$0.06378/EA

#10

MHHP1020100

In Stock

$0.2477/EA

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#10-24 X 1 HEX TRIM HEAD MACHINE SCREW, PLATED

$0.2477/EA

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Quantity	Price
1	$0.2477/EA
1210	$0.23122/EA
4820	$0.20856/EA
21690	$0.13035/EA

#10

1 1/4

MHHP1020125

In Stock

$0.30128/EA

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#10-24 X 1 1/4 HEX TRIM HEAD MACHINE SCREW, PLATED

$0.30128/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.30128/EA
1000	$0.28124/EA
4000	$0.25368/EA
18000	$0.15855/EA

#10

1 1/2

MHHP1020150

In Stock

$0.09758/EA

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#10-24 X 1 1/2 HEX TRIM HEAD MACHINE SCREW, PLATED

$0.09758/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.09758/EA
910	$0.09109/EA
3610	$0.08216/EA
16220	$0.05135/EA

Hex Trim Head Machine Screw, Plated

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Dimensional Specifications

Dimensional SpecificationsType 2A Threads for Machine Screws

Dimensional SpecificationsHex Trim Head for Machine Screws

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