SS Phillips Flat Head Machine Screw
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SS Phillips 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 phillips flat head offers a countersunk design to allow for flush installation. 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 Flat Head for Machine Screws

Slotted Flat Head for Machine Screws dimensionsSlotted 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
Diameter Height Width Depth Diam. Depth Width
Max Min Max Min Max Min Max Min 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
  1. All dimensions are in inches.
SS Phillips Flat Head Machine Screw
View
Diameter Length Item # Availability Price Quantity UOM
#4 1/4 MFPS 40025 3-5 Working Days $0.02723/EA EA
#4 3/8 MFPS 40037 3-5 Working Days $0.04005/EA EA
#4 1/2 MFPS 40050 3-5 Working Days $0.02563/EA EA
#4 3/4 MFPS 40075 3-5 Working Days $0.03444/EA EA
#4 1 MFPS 40100 3-5 Working Days $0.03965/EA EA
#6 1/4 MFPS 60025 3-5 Working Days $0.03724/EA EA
#6 1/2 MFPS 60050 In Stock $0.04642/EA EA
#6 3/4 MFPS 60075 3-5 Working Days $0.04005/EA EA
#6 1 MFPS 60100 In Stock $0.14986/EA EA
#6 1 1/4 MFPS 60125 In Stock $0.10813/EA EA
#6 1 1/2 MFPS 60150 In Stock $0.10216/EA EA
#6 1 3/4 MFPS 60175 In Stock $0.24029/EA EA
#6 2 MFPS 60200 In Stock $0.0801/EA EA
#8 1/4 MFPS 80025 3-5 Working Days $0.03184/EA EA
#8 3/8 MFPS 80037 In Stock $0.0801/EA EA
#8 1/2 MFPS 80050 In Stock $0.0829/EA EA
#8 3/4 MFPS 80075 In Stock $0.10461/EA EA
#8 1 MFPS 80100 In Stock $0.11025/EA EA
#8 1 1/4 MFPS 80125 In Stock $0.08218/EA EA
#8 1 1/2 MFPS 80150 In Stock $0.08262/EA EA
#8 1 3/4 MFPS 80175 In Stock $0.12775/EA EA
#8 2 MFPS 80200 In Stock $0.21838/EA EA
#10 1/2 MFPS1020050 In Stock $0.10641/EA EA
#10 3/4 MFPS1020075 In Stock $0.11522/EA EA
#10 1 MFPS1020100 In Stock $0.15731/EA EA
#10 1 1/4 MFPS1020125 In Stock $0.13612/EA EA
#10 1 1/2 MFPS1020150 In Stock $0.1493/EA EA
#10 2 MFPS1020200 In Stock $0.20693/EA EA
#10 3/8 MFPS1030037 In Stock $0.0801/EA EA
#10 1/2 MFPS1030050 In Stock $0.07153/EA EA
#10 3/4 MFPS1030075 In Stock $0.21093/EA EA
#10 1 MFPS1030100 In Stock $0.16019/EA EA
#10 1 1/4 MFPS1030125 In Stock $0.18358/EA EA
#10 1 1/2 MFPS1030150 In Stock $0.23596/EA EA
#10 1 3/4 MFPS1030175 In Stock $0.29095/EA EA
#10 2 MFPS1030200 In Stock $0.1505/EA EA
#10 2 1/2 MFPS1030250 In Stock $0.39331/EA EA
1/4 3/8 MFPS0250037 3-5 Working Days $0.07733/EA EA
1/4 1/2 MFPS0250050 In Stock $0.11233/EA EA
1/4 3/4 MFPS0250075 In Stock $0.14345/EA EA
1/4 1 MFPS0250100 In Stock $0.2964/EA EA
1/4 1 1/4 MFPS0250125 In Stock $0.44946/EA EA
1/4 1 1/2 MFPS0250150 In Stock $0.32475/EA EA
1/4 1 3/4 MFPS0250175 In Stock $0.24029/EA EA
1/4 2 MFPS0250200 In Stock $0.47341/EA EA
1/4 2 1/2 MFPS0250250 In Stock $0.40264/EA EA
1/4 3 MFPS0250300 In Stock $0.63688/EA EA
1/4 4 MFPS0250400 3-5 Working Days $0.79535/EA EA
1/4 6 MFPS0250600 In Stock $1.44173/EA EA
5/16 1/2 MFPS0310050 3-5 Working Days $0.22187/EA EA
5/16 3/4 MFPS0310075 In Stock $0.47497/EA EA
5/16 1 MFPS0310100 In Stock $0.41842/EA EA
5/16 1 1/2 MFPS0310150 In Stock $0.60072/EA EA
5/16 2 MFPS0310200 In Stock $0.7807/EA EA
5/16 2 1/2 MFPS0310250 In Stock $0.44505/EA EA
5/16 3 MFPS0310300 In Stock $0.6805/EA EA
3/8 3/4 MFPS0370075 In Stock $0.72087/EA EA
3/8 1 MFPS0370100 In Stock $0.56292/EA EA
3/8 1 1/4 MFPS0370125 In Stock $1.28154/EA EA
3/8 1 1/2 MFPS0370150 In Stock $0.58234/EA EA
3/8 1 3/4 MFPS0370175 In Stock $1.0813/EA EA
3/8 2 MFPS0370200 In Stock $1.12135/EA EA
1/2 1 MFPS0500100 3-5 Working Days $4.80577/EA EA
1/2 1 1/2 MFPS0500150 In Stock $4.01338/EA EA
1/2 2 MFPS0500200 In Stock $5.04778/EA EA
1/2 2 1/2 MFPS0500250 In Stock $6.25571/EA EA
1/2 3 MFPS0500300 In Stock $7.63608/EA EA