Aspen Fasteners No.4 x 0.437 in. Pan Phillips Drive Type AB Self-Tapping Sheet Metal Screws - Steel - Zinc - 10000 Pieces

These specially threaded screws are designed to cut threads as an they are driven into the untapped holes. A self-tapping screw requires in a pre-drilled pilot hole from the correct size drill. Recommended drill bit sizes vary, depending on the diameter of screw to be used, type of screw points A, B, AB, and High-Low and structural thickness of the substrate.

Self tapping screws combines the properties of both type A and type B points. Type AB has a gimlet point as seen with type A tapping screws with thread size and pitch of type B tapping screws.

• 10000 Pieces

• Size: No.4 x 7/16"
• Point Style: Type AB
• Head Style: Pan
• Drive Style: Philips
• Material: Steel
• Finish: Zinc
• Thread Size: No.4 x 7/16"
• Thread Style: Right Hand
• Weight: 13 lbs