Square Cone 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
4 – 40.080 / .070.250 / .244.039 / .0211T10
6 – 32.097 / .087.320 / .307.061 / .0392T15
8 – 32.115 / .105.383 / .370.073 / .0502T20
10 – 32.133 / .122.446 / .433.075 / .0512T25
1/4 – 20.175 / .162.508 / .495.088 / .0643T30
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

Drives

DriveDescription
TX6 - Lobe
PHCross Recess
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.