SS Slotted Round Head Machine Screw
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SS Slotted 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 slotted 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 SpecificationsSlotted Round Head for Machine Screws

Slotted Round Head for Machine Screws dimensions
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 Slotted Round Head Machine Screw
View
Diameter Length Item # Availability Price Quantity UOM
#4 3/16 MRSS 40018 In Stock $0.04005/EA EA
#4 1/4 MRSS 40025 In Stock $0.04005/EA EA
#4 5/16 MRSS 40031 In Stock $0.0801/EA EA
#4 3/8 MRSS 40037 In Stock $0.0801/EA EA
#4 7/16 MRSS 40043 In Stock $0.12014/EA EA
#4 1/2 MRSS 40050 In Stock $0.09099/EA EA
#4 5/8 MRSS 40062 In Stock $0.0801/EA EA
#4 3/4 MRSS 40075 In Stock $0.0833/EA EA
#4 7/8 MRSS 40087 In Stock $0.32038/EA EA
#4 1 MRSS 40100 In Stock $0.09071/EA EA
#4 1 1/4 MRSS 40125 In Stock $0.0801/EA EA
#4 1 1/2 MRSS 40150 In Stock $0.0801/EA EA
#5 1/4 MRSS 50025 In Stock $0.04005/EA EA
#5 3/8 MRSS 50037 In Stock $0.04005/EA EA
#5 1/2 MRSS 50050 In Stock $0.0801/EA EA
#6 3/16 MRSS 60018 In Stock $0.02403/EA EA
#6 1/4 MRSS 60025 In Stock $0.04361/EA EA
#6 5/16 MRSS 60031 In Stock $0.04005/EA EA
#6 3/8 MRSS 60037 In Stock $0.04622/EA EA
#6 1/2 MRSS 60050 In Stock $0.05807/EA EA
#6 5/8 MRSS 60062 3-5 Working Days $0.06007/EA EA
#6 3/4 MRSS 60075 In Stock $0.06464/EA EA
#6 7/8 MRSS 60087 In Stock $0.28034/EA EA
#6 1 MRSS 60100 In Stock $0.10861/EA EA
#6 1 1/4 MRSS 60125 In Stock $0.10845/EA EA
#6 1 1/2 MRSS 60150 In Stock $0.21033/EA EA
#6 1 3/4 MRSS 60175 In Stock $0.19167/EA EA
#6 2 MRSS 60200 In Stock $0.11582/EA EA
#6 2 1/2 MRSS 60250 In Stock $0.0801/EA EA
#6 3 MRSS 60300 In Stock $0.31638/EA EA
#8 3/16 MRSS 80018 In Stock $0.02002/EA EA
#8 1/4 MRSS 80025 In Stock $0.07249/EA EA
#8 5/16 MRSS 80031 In Stock $0.04005/EA EA
#8 3/8 MRSS 80037 In Stock $0.06023/EA EA
#8 7/16 MRSS 80043 In Stock $0.04005/EA EA
#8 1/2 MRSS 80050 In Stock $0.06608/EA EA
#8 3/4 MRSS 80075 In Stock $0.08979/EA EA
#8 1 MRSS 80100 In Stock $0.10152/EA EA
#8 1 1/4 MRSS 80125 In Stock $0.14121/EA EA
#8 1 1/2 MRSS 80150 In Stock $0.16019/EA EA
#8 1 3/4 MRSS 80175 In Stock $0.0801/EA EA
#8 2 MRSS 80200 In Stock $0.34041/EA EA
#8 2 1/2 MRSS 80250 In Stock $0.31826/EA EA
#8 2 3/4 MRSS 80275 In Stock $1.02747/EA EA
#8 3 MRSS 80300 In Stock $0.81129/EA EA
#8 3 1/2 MRSS 80350 In Stock $0.93616/EA EA
#8 4 MRSS 80400 3-5 Working Days $1.47938/EA EA
#10 1/4 MRSS1020025 In Stock $0.10881/EA EA
#10 5/16 MRSS1020031 In Stock $0.0801/EA EA
#10 3/8 MRSS1020037 In Stock $0.04005/EA EA
#10 7/16 MRSS1020043 In Stock $0.04005/EA EA
#10 1/2 MRSS1020050 In Stock $0.10168/EA EA
#10 3/4 MRSS1020075 In Stock $0.0801/EA EA
#10 1 MRSS1020100 In Stock $0.1133/EA EA
#10 1 1/4 MRSS1020125 In Stock $0.17505/EA EA
#10 1 1/2 MRSS1020150 In Stock $0.1356/EA EA
#10 1 3/4 MRSS1020175 In Stock $0.23652/EA EA
#10 2 MRSS1020200 In Stock $0.19812/EA EA
#10 2 1/2 MRSS1020250 In Stock $0.35799/EA EA
#10 3 MRSS1020300 In Stock $0.47601/EA EA
#10 4 MRSS1020400 In Stock $1.06071/EA EA
#10 1/4 MRSS1030025 In Stock $0.07773/EA EA
#10 5/16 MRSS1030031 In Stock $0.16019/EA EA
#10 3/8 MRSS1030037 In Stock $0.11173/EA EA
#10 7/16 MRSS1030043 In Stock $0.24029/EA EA
#10 1/2 MRSS1030050 In Stock $0.0801/EA EA
#10 5/8 MRSS1030062 3-5 Working Days $0.11494/EA EA
#10 3/4 MRSS1030075 In Stock $0.16031/EA EA
#10 7/8 MRSS1030087 In Stock $0.32038/EA EA
#10 1 MRSS1030100 In Stock $0.07048/EA EA
#10 1 1/4 MRSS1030125 In Stock $0.3801/EA EA
#10 1 1/2 MRSS1030150 In Stock $0.20024/EA EA
#10 1 3/4 MRSS1030175 In Stock $0.24029/EA EA
#10 2 MRSS1030200 In Stock $0.35839/EA EA
#10 2 1/2 MRSS1030250 In Stock $0.73236/EA EA
#10 2 3/4 MRSS1030275 In Stock $0.80096/EA EA
#10 3 MRSS1030300 In Stock $0.58863/EA EA
#10 4 MRSS1030400 In Stock $1.32755/EA EA
#12 1/2 MRSS1220050 In Stock $0.61594/EA EA
#12 3/4 MRSS1220075 In Stock $0.16812/EA EA
#12 1 MRSS1220100 In Stock $0.63044/EA EA
#12 1 1/4 MRSS1220125 In Stock $0.37713/EA EA
#12 1 1/2 MRSS1220150 In Stock $0.35667/EA EA
#12 2 MRSS1220200 In Stock $0.63765/EA EA
#12 2 1/2 MRSS1220250 In Stock $0.71698/EA EA
1/4 1/4 MRSS0250025 In Stock $0.16019/EA EA
1/4 3/8 MRSS0250037 In Stock $0.17221/EA EA
1/4 1/2 MRSS0250050 In Stock $0.16972/EA EA
1/4 5/8 MRSS0250062 In Stock $0.20024/EA EA
1/4 3/4 MRSS0250075 In Stock $0.12907/EA EA
1/4 1 MRSS0250100 In Stock $0.32038/EA EA
1/4 1 1/4 MRSS0250125 In Stock $0.2147/EA EA
1/4 1 1/2 MRSS0250150 In Stock $0.22379/EA EA
1/4 1 3/4 MRSS0250175 In Stock $0.35034/EA EA
1/4 2 MRSS0250200 In Stock $0.28911/EA EA
1/4 2 1/4 MRSS0250225 In Stock $0.28034/EA EA
1/4 2 1/2 MRSS0250250 In Stock $0.37365/EA EA
1/4 3 MRSS0250300 In Stock $0.54553/EA EA
1/4 4 MRSS0250400 In Stock $0.84101/EA EA
1/4 6 MRSS0250600 In Stock $2.15102/EA EA
5/16 1/2 MRSS0310050 In Stock $0.40048/EA EA
5/16 3/4 MRSS0310075 In Stock $0.35703/EA EA
5/16 1 MRSS0310100 In Stock $0.32038/EA EA
5/16 1 1/4 MRSS0310125 In Stock $0.36043/EA EA
5/16 1 1/2 MRSS0310150 In Stock $0.40024/EA EA
5/16 2 MRSS0310200 In Stock $0.61113/EA EA
5/16 2 1/2 MRSS0310250 In Stock $0.92111/EA EA
5/16 3 MRSS0310300 In Stock $1.15899/EA EA
3/8 1/2 MRSS0370050 In Stock $0.36043/EA EA
3/8 3/4 MRSS0370075 In Stock $0.41646/EA EA
3/8 1 MRSS0370100 In Stock $0.56067/EA EA
3/8 1 1/4 MRSS0370125 In Stock $1.09219/EA EA
3/8 1 1/2 MRSS0370150 In Stock $0.97901/EA EA
3/8 1 3/4 MRSS0370175 In Stock $0.79451/EA EA
3/8 2 MRSS0370200 In Stock $1.14137/EA EA
3/8 2 1/2 MRSS0370250 In Stock $1.12135/EA EA
3/8 3 MRSS0370300 In Stock $2.50969/EA EA
3/8 4 MRSS0370400 In Stock $2.28586/EA EA