Standard Machine Screws

Split Ring Lock Washer SEMS Screws

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General

ThreadH
Height
G
Washer Outside Diameter
W
Washer Thickness
Drive Size
Cross Recess
2 - 56.062 / .053.156 / .145
.035 / .0201
4 - 40.080 / .070.208 / .195.047 / .0311
6 - 32.097 / .087.261 / .248.062 / .0342
8 - 32.115 / .105.319 / .305.078 / .0312
10 - 32.133 / .122.373 / .359.093 / .0472
1/4 - 20.175 / .162.496 / .480.125 / .0623

Length

LengthL
(Length Code)
±.005
1/8.125 / .105
3/16.187 / .167
1/4.250 / .230
5/16.313 / .293
3/8.375 / .355
7/16.438 / .418
1/2.500 / .480
9/16.563 / .533
5/8.625 / .595
3/4.750 / .720
7/8.875 / .845
11.000 / .970
1 - 1/41.250 / 1.190
1 - 3/81.375 / 1.315
1 - 1/21.500 / 1.440
1 - 5/81.625 / 1.565
1 - 3/41.750 / 1.690
1 - 7/81.875 / 1.815
22.000 / 1.940

Material

MaterialDescription
SS18 - 8 Stainless Steel
STLLow Carbon Steel

Finish

FinishDescription
PPassivated
PLNPlain
Z - BLKZinc Black
ZZinc Clear

Drive

DriveDescription
TX6 - Lobe
PHCross Recess
SLSlotted
SL - TXSlotted - 6 - Lobe
SL - PHSlotted - Cross Recess

General

ThreadH
Height
G
Washer Outside Diameter
W
Washer Thickness
MIN
Drive Size
Cross Recess
Drive Size
6 - Lobe
M2.5 x 0.452.1 / 1.95.73 / 5.491.401T8
M3 x 0.52.4 / 2.26.19 / 5.951.401T10
M3.5 x 0.62.6 / 2.37.00 / 6.741.572T15
M4 x 0.73.1 / 2.88.34 / 8.081.782T20
M5 x 0.83.7 / 3.411.30 / 11.022.792T25
M6 x 14.6 / 4.314.29 / 13.963.303T30

Length

LengthL
(Length Code)
±0.13
44.3 / 3.7
88.0 / 7.2
55.0 / 4.2
66.0 / 5.2
1010.3 / 9.7
2020.5 / 19.5
1212.4 / 11.6
1414.4 / 13.6
1616.4 / 15.6
2525.5 / 24.5
3030.5 / 29.5
3535.5 / 34.5
33.2 / 2.8

Material

MaterialDescription
SS18 - 8 Stainless Steel
STLLow Carbon Steel

Finish

FinishDescription
PPassivated
PLNPlain
Z - BLKZinc Black
ZZinc Clear

Drive

DriveDescription
TX6 - Lobe
PHCross Recess
SLSlotted
SL - TXSlotted - 6 - Lobe
SL - PHSlotted - Cross Recess