Zinc Plated Steel Self Tapping Screw, Pan Head, Phillips Drive, #4-24, 1/4" Length (Pack of 100) Reviews
Zinc Plated Steel Self Tapping Screw, Pan Head, Phillips Drive, #4-24, 1/4" Length (Pack of 100) Feature
- Create their own threads when driven into material
- Zinc Plated Steel fasteners are suitable where strength and corrosion resistance are primary considerations
- Pan head allows for higher tightening torques
- Phillips drive is designed to cam out under too much torque
Steels are designated by a 4 number SAE Steel grade. The first two digits indicate the primary materials used to form the steel. The last 2 digits identify the percentage of carbon for the alloy (in hundredths). The steel used in these fasteners has a tensile strength ranging from 100,000 to 150,000 psi (pounds per square inch). Zinc Plating helps to prevent corrosion.
Pan head fasteners have a low, large cylindrical head with a high rounded top edge for higher tightening torques - these fasteners are often recommended to replace older head styles such as round, binding, or truss-head where possible. The Phillips drive style was originally designed so that the driver would slip out under extreme torque, preventing over-tightening and damage to the fastener or the material.
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Mar 19, 2011 05:34:04
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