#8 x 31mm(1-1/4'')..Pan head Zinc Pl screw. Thead Tapping Qty 100
The original/Robertson Square Drive Screw with Zinc finish,
Type A sheet metal threads for fast tapping into sheet metal,plastic or wood.
Sharp point for excellent material engagement and thread starting
Variety of sizes and head styles
Windows and Doors
4 gauge to 12 gauge
10mm to 50mm in length
#2 is the driver bit size for #8 and #10 gauge screws.
This is a RED colour coded bit or hand driver.