External Tooth Lock Washer SEMS Screws

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When second sourcing PENCOM’s products, PENCOM recommends that the part is tested in the application to ensure that it will meet all performance requirements.

Dimensions

General
ThreadH
Height
G
Washer Outside Diameter
W
Washer Thickness
Drive Size
Cross Recess
Drive Size
6 -Lobe
M2.5 x 0.451.8 / 1.665.85 / 5.45.45 / .301T8
M3 x 0.52.0 / 1.865.85 / 5.45.45 / .301T10
M3.5 x 0.62.4 / 2.267.35 / 6.85.55 / .402T15
M4 x 0.72.6 /2.468.25 / 7.75.60 / .452T20
M5 x 0.83.3 / 3.1210.50 / 10.00.65 / .502T25
M6 x 13.9 / 3.612.10 / 11.60.75 / .603T30
M8 x 1.255.0 / 4.716.00 / 15.25.85 / .704T40
Length
LengthL
(Length Code)
±0.13
33.2 / 2.8
44.3 / 3.7
55.0 / 4.2
66.0 / 5.2
88.0 / 7.2
1010.3 / 9.7
1212.4 / 11.6
1414.4 / 13.6
1616.4 / 15.6
2020.5 / 19.5
2525.5 / 24.5
3030.5 / 29.5
3535.5 / 34.5

Drives

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

Material & Finish

Material CodeMaterial DescriptionFinish CodeFinish Description
STLLow Carbon SteelZ-BLK Zinc Black
Z Zinc Clear
SSStainless SteelP Passivated
PLN Plain

Contact a PENCOM Account Representative for other material & finish options.