SS Phillips Round Head Machine Screw
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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.

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
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
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
  1. All dimensions are in inches.

Dimensional SpecificationsPhillips Round Head for Machine Screws

Phillips 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
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
  1. All dimensions are in inches.
SS Phillips Round Head Machine Screw
View
Diameter Length Item # Availability Price Quantity UOM
#4 3/8 MRPS 40037 In Stock $0.05983/EA EA
#4 1/2 MRPS 40050 In Stock $0.0801/EA EA
#4 3/4 MRPS 40075 In Stock $0.06592/EA EA
#4 1 MRPS 40100 In Stock $0.04814/EA EA
#4 1 1/4 MRPS 40125 In Stock $0.26388/EA EA
#6 1/4 MRPS 60025 In Stock $0.08402/EA EA
#6 3/8 MRPS 60037 In Stock $0.08787/EA EA
#6 1/2 MRPS 60050 In Stock $0.19892/EA EA
#6 3/4 MRPS 60075 In Stock $0.0833/EA EA
#6 1 MRPS 60100 In Stock $0.1131/EA EA
#6 1 1/4 MRPS 60125 In Stock $0.04005/EA EA
#6 1 1/2 MRPS 60150 In Stock $0.16019/EA EA
#6 1 3/4 MRPS 60175 In Stock $0.24365/EA EA
#6 2 MRPS 60200 In Stock $0.32179/EA EA
#8 1/4 MRPS 80025 In Stock $0.08394/EA EA
#8 3/8 MRPS 80037 In Stock $0.1316/EA EA
#8 1/2 MRPS 80050 3-5 Working Days $0.13472/EA EA
#8 3/4 MRPS 80075 In Stock $0.1/EA EA
#8 1 MRPS 80100 In Stock $0.09648/EA EA
#8 1 1/4 MRPS 80125 In Stock $0.10132/EA EA
#8 1 1/2 MRPS 80150 In Stock $0.20925/EA EA
#8 1 3/4 MRPS 80175 In Stock $0.16388/EA EA
#8 2 MRPS 80200 In Stock $0.23508/EA EA
#8 2 1/2 MRPS 80250 In Stock $0.21029/EA EA
#8 3 MRPS 80300 In Stock $0.57613/EA EA
#10 1/2 MRPS1020050 3-5 Working Days $0.06808/EA EA
#10 3/4 MRPS1020075 In Stock $0.12499/EA EA
#10 1 MRPS1020100 In Stock $0.29383/EA EA
#10 1 1/4 MRPS1020125 In Stock $0.19776/EA EA
#10 1 1/2 MRPS1020150 In Stock $0.21774/EA EA
#10 1 3/4 MRPS1020175 In Stock $0.40489/EA EA
#10 2 MRPS1020200 In Stock $0.25242/EA EA
#10 2 1/2 MRPS1020250 In Stock $0.44886/EA EA
#10 3 MRPS1020300 In Stock $0.48058/EA EA
#10 1/4 MRPS1030025 In Stock $0.12006/EA EA
#10 1/2 MRPS1030050 In Stock $0.12323/EA EA
#10 5/8 MRPS1030062 In Stock $0.0801/EA EA
#10 3/4 MRPS1030075 In Stock $0.1326/EA EA
#10 1 MRPS1030100 In Stock $0.16316/EA EA
#10 1 1/4 MRPS1030125 In Stock $0.20024/EA EA
#10 1 1/2 MRPS1030150 In Stock $0.17909/EA EA
#10 2 MRPS1030200 In Stock $0.38378/EA EA
#10 2 1/2 MRPS1030250 3-5 Working Days $0.28835/EA EA
#10 3 MRPS1030300 In Stock $0.74902/EA EA
#12 3/4 MRPS1220050 In Stock $0.34521/EA EA
#12 1 MRPS1220100 In Stock $0.46071/EA EA
#12 1 1/4 MRPS1220125 In Stock $0.48274/EA EA
#12 1 1/2 MRPS1220150 In Stock $0.47229/EA EA
#12 2 MRPS1220200 In Stock $0.81173/EA EA
#12 2 1/2 MRPS1220250 3-5 Working Days $0.38686/EA EA
1/4 1/2 MRPS0250050 In Stock $0.31286/EA EA
1/4 3/4 MRPS0250075 In Stock $0.23196/EA EA
1/4 1 MRPS0250100 In Stock $0.29836/EA EA
1/4 1 1/4 MRPS0250125 In Stock $0.3304/EA EA
1/4 1 1/2 MRPS0250150 In Stock $0.34381/EA EA
1/4 1 3/4 MRPS0250175 In Stock $0.5833/EA EA
1/4 2 MRPS0250200 In Stock $0.60072/EA EA
1/4 2 1/2 MRPS0250250 In Stock $0.61338/EA EA
1/4 3 MRPS0250300 In Stock $0.66476/EA EA
1/4 4 MRPS0250400 In Stock $1.31185/EA EA
1/4 6 MRPS0250600 In Stock $1.14922/EA EA
5/16 3/4 MRPS0310075 In Stock $0.45903/EA EA
5/16 1 MRPS0310100 In Stock $0.51754/EA EA
5/16 1 1/4 MRPS0310125 In Stock $0.70665/EA EA
5/16 1 1/2 MRPS0310150 In Stock $0.74577/EA EA
5/16 2 MRPS0310200 In Stock $1.32159/EA EA
5/16 2 1/2 MRPS0310250 In Stock $0.92111/EA EA
5/16 3 MRPS0310300 In Stock $2.52819/EA EA
3/8 3/4 MRPS0370075 In Stock $0.96668/EA EA
3/8 1 MRPS0370100 In Stock $2.42423/EA EA
3/8 1 1/4 MRPS0370125 In Stock $2.48298/EA EA
3/8 1 1/2 MRPS0370150 In Stock $1.42171/EA EA
3/8 2 MRPS0370200 In Stock $3.48374/EA EA
3/8 3 MRPS0370300 3-5 Working Days $1.96235/EA EA
3/8 4 MRPS0370400 In Stock $6.57789/EA EA