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.