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SS Phillips Round 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 round head offers a smooth, rounded head design with a phillips drive. These fasteners are available in 18-8 stainless steel.

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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 SpecificationsPhillips Round Head for Machine Screws

ASME B18.6.3-2013
Nominal Size	A		H		J		T		M		G	N	Phillips Drive Size
	Head Dimensions				Slot Dimensions				Phillips Dimensions
	Head Dimensions				Slot Dimensions				Phillips Dimensions
	Diameter		Height		Width		Depth		Diameter		Depth	Width
	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min
#2	0.162	0.146	0.069	0.059	0.031	0.023	0.048	0.037	0.100	0.087	0.053	0.017	1
#3	0.187	0.169	0.078	0.067	0.035	0.027	0.053	0.040	0.109	0.096	0.062	0.018	1
#4	0.211	0.193	0.086	0.075	0.039	0.031	0.058	0.044	0.118	0.105	0.072	0.019	1
#5	0.236	0.217	0.095	0.083	0.043	0.035	0.063	0.047	0.154	0.141	0.074	0.027	2
#6	0.260	0.240	0.103	0.091	0.048	0.039	0.068	0.051	0.162	0.149	0.084	0.027	2
#8	0.309	0.287	0.120	0.107	0.054	0.045	0.077	0.058	0.178	0.165	0.101	0.030	2
#10	0.359	0.334	0.137	0.123	0.060	0.050	0.087	0.065	0.195	0.182	0.119	0.031	2
#12	0.408	0.382	0.153	0.139	0.067	0.056	0.096	0.073	0.249	0.236	0.125	0.032	3
1/4	0.472	0.443	0.175	0.160	0.075	0.064	0.109	0.082	0.268	0.255	0.147	0.034	3
5/16	0.590	0.557	0.216	0.198	0.084	0.072	0.132	0.099	0.308	0.295	0.187	0.040	3
3/8	0.708	0.670	0.256	0.237	0.094	0.081	0.155	0.117	0.387	0.374	0.228	0.064	4
1/2	0.813	0.766	0.355	0.332	0.106	0.091	0.211	0.159	0.416	0.403	0.256	0.068	4

All dimensions are in inches.

SS Phillips Round Head Machine Screw

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Diameter Length Item # Availability Price Quantity UOM

#12

3/4

MRPS1220050

In Stock

$0.34485/EA

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#12-24 X 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.34485/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.34485/ EA
1040	$0.32155/ EA
4130	$0.30363/ EA
18570	$0.20655/ EA

#12

MRPS1220100

In Stock

$0.46071/EA

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#12-24 X 1 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.46071/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.46071/ EA
880	$0.42957/ EA
3520	$0.40564/ EA
15840	$0.27594/ EA

#12

1 1/4

MRPS1220125

In Stock

$0.48274/EA

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#12-24 X 1 1/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.48274/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.48274/ EA
780	$0.45011/ EA
3090	$0.42504/ EA
13900	$0.28913/ EA

#12

1 1/2

MRPS1220150

In Stock

$0.47229/EA

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#12-24 X 1 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.47229/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.47229/ EA
690	$0.44037/ EA
2760	$0.41583/ EA
12390	$0.28287/ EA

#12

MRPS1220200

In Stock

$0.81173/EA

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#12-24 X 2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.81173/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.81173/ EA
570	$0.75687/ EA
2260	$0.7147/ EA
10170	$0.48618/ EA

#12

2 1/2

MRPS1220250

3-5 Working Days

$0.38686/EA

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#12-24 X 2 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.38686/EA

Qty

3-5 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.38686/ EA
480	$0.36072/ EA
1920	$0.34062/ EA
8620	$0.23171/ EA

1/4

1/2

MRPS0250050

In Stock

$0.31286/EA

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1/4-20 X 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.31286/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.31286/ EA
860	$0.29171/ EA
3420	$0.27546/ EA
15350	$0.18738/ EA

1/4

3/4

MRPS0250075

In Stock

$0.17453/EA

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1/4-20 X 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.17453/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.17453/ EA
730	$0.16273/ EA
2910	$0.15367/ EA
13100	$0.10453/ EA

1/4

MRPS0250100

In Stock

$0.4205/EA

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1/4-20 X 1 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.4205/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.4205/ EA
620	$0.39208/ EA
2460	$0.37024/ EA
11070	$0.25186/ EA

1/4

1 1/4

MRPS0250125

In Stock

$0.3304/EA

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1/4-20 X 1 1/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.3304/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.3304/ EA
530	$0.30807/ EA
2120	$0.2909/ EA
9530	$0.19789/ EA

1/4

1 1/2

MRPS0250150

In Stock

$0.48058/EA

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1/4-20 X 1 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.48058/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.48058/ EA
470	$0.4481/ EA
1870	$0.42313/ EA
8400	$0.28784/ EA

1/4

1 3/4

MRPS0250175

In Stock

$0.5833/EA

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1/4-20 X 1 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.5833/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.5833/ EA
420	$0.54388/ EA
1670	$0.51358/ EA
7520	$0.34936/ EA

1/4

MRPS0250200

In Stock

$0.39047/EA

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1/4-20 X 2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.39047/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.39047/ EA
380	$0.36408/ EA
1520	$0.34379/ EA
6800	$0.23387/ EA

1/4

2 1/2

MRPS0250250

In Stock

$0.61406/EA

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1/4-20 X 2 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.61406/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.61406/ EA
320	$0.57255/ EA
1260	$0.54066/ EA
5660	$0.36779/ EA

1/4

MRPS0250300

In Stock

$0.66476/EA

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1/4-20 X 3 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.66476/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.66476/ EA
270	$0.61983/ EA
1080	$0.5853/ EA
4850	$0.39815/ EA

1/4

MRPS0250400

In Stock

$1.30953/EA

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1/4-20 X 4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$1.30953/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.30953/ EA
210	$1.22102/ EA
840	$1.153/ EA
3750	$0.78434/ EA

1/4

MRPS0250600

In Stock

$1.14537/EA

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1/4-20 X 6 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$1.14537/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.14537/ EA
160	$1.06796/ EA
640	$1.00846/ EA
2840	$0.68602/ EA

5/16

3/4

MRPS0310075

In Stock

$0.45903/EA

See Quantity Discounts

5/16-18 X 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.45903/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.45903/ EA
420	$0.42801/ EA
1670	$0.40416/ EA
7480	$0.27493/ EA

5/16

MRPS0310100

In Stock

$0.51754/EA

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5/16-18 X 1 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.51754/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.51754/ EA
360	$0.48256/ EA
1410	$0.45568/ EA
6320	$0.30998/ EA

5/16

1 1/4

MRPS0310125

In Stock

$0.70665/EA

See Quantity Discounts

5/16-18 X 1 1/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.70665/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.70665/ EA
310	$0.65889/ EA
1230	$0.62218/ EA
5520	$0.42324/ EA

5/16

1 1/2

MRPS0310150

In Stock

$0.74577/EA

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5/16-18 X 1 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.74577/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.74577/ EA
280	$0.69537/ EA
1090	$0.65663/ EA
4880	$0.44668/ EA

5/16

MRPS0310200

In Stock

$1.32159/EA

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5/16-18 X 2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$1.32159/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.32159/ EA
230	$1.23226/ EA
890	$1.16361/ EA
3980	$0.79156/ EA

5/16

2 1/2

MRPS0310250

In Stock

$0.92111/EA

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5/16-18 X 2 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$0.92111/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.92111/ EA
190	$0.85885/ EA
750	$0.811/ EA
3350	$0.55169/ EA

5/16

MRPS0310300

In Stock

$2.52819/EA

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5/16-18 X 3 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

$2.52819/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$2.52819/ EA
170	$2.35732/ EA
650	$2.22599/ EA
2900	$1.51425/ EA

SS Phillips Round Head Machine Screw

Technical Data

Dimensional Specifications

Dimensional SpecificationsType 2A Threads for Machine Screws

Dimensional SpecificationsPhillips Round Head for Machine Screws

You've Selected

Grade

Diameter

Thread Pitch

Length

Head Diam

Drive Size

#12-24 X 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

#12-24 X 1 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

#12-24 X 1 1/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

#12-24 X 1 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

#12-24 X 2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

#12-24 X 2 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 1 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 1 1/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 1 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 1 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 2 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 3 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

1/4-20 X 6 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

5/16-18 X 3/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

5/16-18 X 1 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

5/16-18 X 1 1/4 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

5/16-18 X 1 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

5/16-18 X 2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

5/16-18 X 2 1/2 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW

5/16-18 X 3 STAINLESS STEEL PHILLIPS ROUND HEAD MACHINE SCREW