Buy Today 5/16 X 1″ Type A Self Tapping Sheet Metal Screws Indented Hex Washer Head Unslotted Drive Steel Zinc & Bake 7/16″ A/F (1250/Pkg.)

1250 BULK Type A Self Tapping Sheet Metal Screws feature an Indented Hex Washer Head and an unslotted drive for high-torque, flush-mount assemblies. Made from steel with a zinc baked finish, these fasteners form secure threads in thin metal without pre-drilling.

Specs

Dimensions: Diameter 5/16 inches; Length 1 inch; Head across flats 7/16 inches

Finish: Zinc baked

Drive type: Unslotted

Material grade: Steel

Thread type: Self tapping

Features

Self tapping thread form: Forms threads in thin sheet metal during drive, enabling rapid, pre-drill-free assemblies and reducing production cycle times.

Indented Hex Washer Head: Provides flush seating with a large bearing surface for even load distribution, aiding sealing and panel integrity.

Unslotted drive: Hex drive geometry offers high torque transmission, minimizes cam-out, and enhances tamper-resistance when paired with correct tooling.

Corrosion resistance: Zinc baked finish delivers uniform coating and improved resistance to corrosion in indoor and outdoor environments.

Material and strength: Steel construction delivers robust shear and clamping strength suitable for metal-to-metal fastening in enclosures and brackets.

Use cases: Ideal for automotive trim and body panels, HVAC ductwork, electrical enclosures, appliance assemblies, and other sheet metal applications requiring reliable self tapping performance.