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Brass Slotted Flat Head Machine Screw

Machine screws are uniformly threaded fasteners with a blunt end that are used with a threaded nut or threaded into a tapped hole. The slotted flat head offers a countersunk design to allow for flush installation. These fasteners are available in brass.

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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
			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
#4	48	0.0007	0.1113	0.1068	0.0978	0.0954	0.002361	0.00661
#5	40	0.0008	0.1242	0.1191	0.1080	0.1054	0.002562	0.00796
#5	44	0.0007	0.1243	0.1195	0.1095	0.1070	0.002484	0.00830
#6	32	0.0008	0.1372	0.1312	0.1169	0.1141	0.002820	0.00909
#6	40	0.0008	0.1372	0.1321	0.1210	0.1184	0.002614	0.01015
#8	32	0.0009	0.1631	0.1571	0.1428	0.1399	0.002916	0.01400
#8	36	0.0008	0.1632	0.1577	0.1452	0.1424	0.002804	0.01474
#10	24	0.0010	0.1890	0.1818	0.1619	0.1586	0.003319	0.01750
#10	32	0.0009	0.1891	0.1831	0.1688	0.1658	0.003004	0.02000
#12	24	0.0010	0.2150	0.2078	0.1879	0.1845	0.003400	0.02420
#12	28	0.0010	0.2150	0.2085	0.1918	0.1886	0.003224	0.02580
1/4	20	0.0011	0.2489	0.2408	0.2164	0.2127	0.003731	0.03180
1/4	28	0.0010	0.2490	0.2425	0.2258	0.2225	0.003322	0.03640
5/16	18	0.0012	0.3113	0.3026	0.2752	0.2712	0.004041	0.05240
5/16	24	0.0011	0.3114	0.3042	0.2843	0.2806	0.003660	0.05800
3/8	16	0.0013	0.3737	0.3643	0.3331	0.3287	0.004363	0.07750
3/8	24	0.0011	0.3739	0.3667	0.3468	0.3430	0.003804	0.08780
1/2	13	0.0015	0.4985	0.4876	0.4485	0.4435	0.004965	0.14190
1/2	20	0.0013	0.4987	0.4906	0.4662	0.4619	0.004288	0.15990

Nominal Screw Size	Nominal Screw Length (L) Tolerance
	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
1/4 thru 3/4	-0.03	-0.03	-0.06	-0.09

All dimensions are in inches.

Dimensional SpecificationsSlotted Flat Head Machine Screw

Slotted Flat Head for Machine Screws dimensions

ASME B18.6.3-2013
Nominal Size	A		H		J		T		M	R	N	F		G	Phillips Drive Size
	Head Dimensions				Slot Dimensions				Phillips Dimensions			Protrusion Above Gaging Diameter		Gaging Diameter
	Head Dimensions				Slot Dimensions				Phillips Dimensions
	Diameter		Height		Width		Depth		Diam.	Depth	Width
	Max	Min	Max	Min	Max	Min	Max	Min	Diam.	Depth	Width	Max	Min
#0	0.112	0.096	0.035	0.026	0.023	0.016	0.015	0.010	0.062	0.035	0.014	0.026	0.016	0.078	0
#1	0.137	0.120	0.043	0.033	0.026	0.019	0.019	0.012	0.070	0.043	0.015	0.028	0.016	0.101	0
#2	0.162	0.144	0.051	0.040	0.031	0.023	0.023	0.015	0.096	0.055	0.017	0.029	0.017	0.124	1
#3	0.187	0.167	0.059	0.047	0.035	0.027	0.027	0.017	0.100	0.060	0.018	0.031	0.018	0.148	1
#4	0.212	0.191	0.067	0.055	0.039	0.031	0.030	0.020	0.122	0.081	0.018	0.032	0.019	0.172	1
#5	0.237	0.215	0.075	0.062	0.043	0.035	0.034	0.022	0.148	0.074	0.027	0.034	0.020	0.196	2
#6	0.262	0.238	0.083	0.069	0.048	0.039	0.038	0.024	0.168	0.094	0.029	0.036	0.021	0.220	2
#8	0.312	0.285	0.100	0.084	0.054	0.045	0.045	0.029	0.182	0.110	0.030	0.039	0.023	0.267	2
#10	0.362	0.333	0.116	0.098	0.060	0.050	0.053	0.034	0.198	0.124	0.032	0.042	0.025	0.313	2
#12	0.412	0.380	0.132	0.112	0.067	0.056	0.060	0.039	0.262	0.144	0.035	0.045	0.027	0.362	3
1/4	0.477	0.442	0.153	0.131	0.075	0.064	0.070	0.046	0.276	0.160	0.036	0.050	0.029	0.424	3
5/16	0.597	0.556	0.191	0.165	0.084	0.072	0.088	0.058	0.358	0.205	0.061	0.057	0.034	0.539	4
3/8	0.717	0.670	0.230	0.200	0.094	0.081	0.106	0.070	0.386	0.234	0.065	0.065	0.039	0.653	4
1/2	0.815	0.765	0.223	0.186	0.106	0.091	0.103	0.065	0.418	0.265	0.069	0.081	0.049	0.739	4

All dimensions are in inches.

Brass Slotted Flat Head Machine Screw

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1/4

MFSB 60025

In Stock

$0.04005/EA

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#6-32 X 1/4 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.04005/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.04005/EA
3600	$0.03734/EA
14370	$0.03526/EA
57450	$0.02399/EA

3/8

MFSB 60037

In Stock

$0.0801/EA

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#6-32 X 3/8 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.0801/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.0801/EA
2790	$0.07468/EA
11150	$0.07052/EA
44570	$0.04797/EA

1/2

MFSB 60050

3-5 Working Days

$0.26432/EA

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#6-32 X 1/2 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.26432/EA

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3-5 Working Days

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Quantity	Price
Quantity	Price
1	$0.26432/EA
2290	$0.24645/EA
9150	$0.23272/EA
36590	$0.15831/EA

3/4

MFSB 60075

3-5 Working Days

$0.2459/EA

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#6-32 X 3/4 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.2459/EA

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3-5 Working Days

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Quantity	Price
Quantity	Price
1	$0.2459/EA
1670	$0.22928/EA
6670	$0.2165/EA
26650	$0.14728/EA

MFSB 60100

3-5 Working Days

$0.38406/EA

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#6-32 X 1 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.38406/EA

Qty

3-5 Working Days

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Quantity	Price
Quantity	Price
1	$0.38406/EA
1310	$0.3581/EA
5240	$0.33815/EA
20950	$0.23003/EA

1 1/4

MFSB 60125

In Stock

$0.12014/EA

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#6-32 X 1 1/4 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.12014/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.12014/EA
1090	$0.11202/EA
4330	$0.10578/EA
17310	$0.07196/EA

1 1/2

MFSB 60150

In Stock

$0.20024/EA

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#6-32 X 1 1/2 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.20024/EA

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In Stock

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Quantity	Price
Quantity	Price
1	$0.20024/EA
1840	$0.18671/EA
7360	$0.1763/EA
33090	$0.11993/EA

MFSB 60200

In Stock

$0.24029/EA

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#6-32 X 2 BRASS SLOTTED FLAT HEAD MACHINE SCREW

$0.24029/EA

Qty

In Stock

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Quantity	Price
Quantity	Price
1	$0.24029/EA
1420	$0.22405/EA
5680	$0.21157/EA
25540	$0.14392/EA

Brass Slotted Flat Head Machine Screw

Technical Data

Dimensional Specifications

Dimensional SpecificationsType 2A Threads for Machine Screws

Dimensional SpecificationsSlotted Flat Head Machine Screw

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