Sems Machine Combined Screw with Flat Washer
Materials: Carbon Steel + Zinc plated RoHS
SEMS screws are also known as assembly screws or combine screws
Manufacture Process:
Heading-washer assembly-Threading-Secondary machine-heat treatment-plating-Anti-slipping-Baking-QA-Package-Shipping
Screw Type: Sems Machine Combined Screw with Flat Washer
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