Sems Screws
What is a Sems Screw
A Sems Screw is a type of a fastener.
How do they work?
The screws are already pre-assembled with a free spinning lock washer, held in place by the diameter of the screw thread being wider than the hole of the washer.
Features and Benefits
• They come with different head types, washer styles, thread styles, plating types and materials.
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