5/16 X 3" Type A Self Tapping Sheet Metal Screws | Hex Washer Head | Unslotted Drive | Steel Zinc & Bake | 7/16" A/F (400/Pkg.) Interrupted Thread NPT Taps Drive: Internal hex (Allen) drive

Drive: Internal hex (Allen) drive for reliable torque and a clean finish

Material strength: Carbon Steel substrate delivers high shear and tensile strength for reliable load transfer in equipment mounting and security assemblies

Phillips Drive: Minimizes cam-out and supports common bit types for reliable torque transfer

9/64" diameter

these screws are made from steel and finished in black oxide for corrosion resistance and a clean look

5/16 X 3" Type A Self Tapping Sheet Metal Screws | Hex Washer Head | Unslotted Drive | Steel Zinc & Bake | 7/16" A/F (400/Pkg.) Interrupted Thread NPT Taps Drive: Internal hex (Allen) driveType A Self Tapping Sheet Metal Screws with hex washer head and unslotted drive provide rapid, secure fastening for sheet metal assemblies. They are made from steel with a zinc baked finish, delivering durable corrosion resistance in OEM manufacturing and maintenance tasks. Specs Diameter: 5 16 inch Length: 3 inch Head type: Hex Washer Head Across flats: 7 16 inch Drive type: Unslotted Finish: Zinc baked finish Material: Steel Thread type: Self