Standard Machine Screws

Internal Tooth Lock Washer SEMS Screws

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General

ThreadH
Height
G
Washer Outside Diameter
W
Washer Thickness
Drive Size
Cross Recess
Drive Size
6 -Lobe
2 - 56.062 / .053.185 / .175.016 / .0101T7
4 - 40.080 / .070.268 / .258.018 / .0121T10
6 - 32.097 / .087.288 / .278.022 / .0162T15
8 - 32.115 / .105.338 / .327.023 / .0182T20
10 - 32.133 / .122.383 / .372.024 / .0182T25
1/4 - 20.175 / .162.478 / .466.028 / .0233T30

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
Drive Size
Cross Recess
Drive Size
6 -Lobe
M2.5 x 0.452.1 / 1.97.00 / 6.50.45 / .301T8
M3 x 0.52.4 / 2.27.35 / 6.85.45 / .301T10
M3.5 x 0.62.6 / 2.37.50 / 7.00.55 / .402T15
M4 x 0.73.1 / 3.48.75 / 8.25.60 / .452T20
M5 x 0.83.7 / 3.412.15 / 11.65.75 / .603T25
M6 x 14.6 / 4.312.15 / 11.65.75 / .604T30
M8 x 1.256.0 / 5.615.50 / 14.75.85 / .704T40

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