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Sems Screws

Sems ScrewSEMS Screws are a style of machine screw that comes with a pre-assembled free-spinning lockwasher.

Available in the following finishes and sizes:
Plain, Zinc Plated, Hot Dipped Galvanized, Black Oxide, Silicone Bronze, Yellow Zinc, Aluminum, 316 SS, and 304/18-8/410 SS.


Description Description
4-40 x1/4 8-32 x 1 1/4
4-40 x 5/16 10-24 x 3/8
4-40 x 3/8 10-24 x 1/2
4-40 x 1/2 10-24 x 5/8
4-40 x 5/8 10-24 x 3/4
4-40 x 3/4 10-32 x 1/4
6-32 x 1/4 10-32 x 3/8
6-32 x 5/16 10-32 x 1/2
6-32 x 3/8 10-32 x 5/8
6-32 x 1/2 10-32 x 3/4
6-32 x 5/8 1/4-20 x 3/8
6-32 x 3/4 1/4-20 x 1/2
6-32 x 1 1/4-20 x 5/8
6-32 x 1 1/4 1/4-20 x 3/4
8-32 x 1/4 1/4-20 x 1
8-32 x 5/16  
8-32 x 3/8  
8-32 x 1/2  
8-32 x 5/8  
8-32 x 3/4  
8-32 x 1