Detail & Specs
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SEMS Single Washer Hex Head Screw / 4.8 Steel
These SEMS screws have an hex head with a captive (permanently attached) flat washer. Length is measured from underneath the head, including the washer.
Finish
Yellow Zinc plated finish provides corrosion resistance, commonly used in European automotive restoration, specifically Porsche, Volkswagen, Mercedes, etc.
SEMS Design
The washer on this SEMS screw is free spinning. SEMS screws are common in the electronics industry but can be used in automotive, energy, agriculture, etc. SEMS screws are beneficial for a variety of reasons: saving time by eliminating assembly of individual components, reducing loss of loose parts during assembly and compatibility with automated production equipment.
Also known as Hexagon Head Bolt with captivated washer, hex head SEMS screw.