Create their own threads when driven into material
Zinc Plated Steel fasteners are suitable where strength and corrosion resistance are primary
Hex head for easy driving
Length is measured from under the head
Self Tapping Screws are designed to advance when turned, creating their own threads in the material. They are often used in sheet metal and plastic.
Steels are designated by a 4 number SAE Steel grade.Â The first two digits indicate the primary materials used to form the steel.Â The last 2 digits identify the percentage of carbon for the alloy (in hundredths).Â The steel used in these fasteners has a tensile strength ranging from 100,000 to 150,000 psi (pounds per square inch).Â Zinc Plating helps to prevent corrosion.
Hex head fasteners can be driven with simple wrenches, and require minimal clearance above the fastener because they can be driven or loosened from the side.
Tools & Harware
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