6.3 x 22mm Stitcher Self Drilling Tek Screw With 29mm Bonded Washer Pack of 100

The stitcher is a self drilling tek screw for joining two thin metal sheets together.
Coarse self drilling thread.
No pre-drilling required.
No 1 hardened carbon steel self drilling reduced point.
Bonded neoprene washer to provide watertight seal.
Zinc plated.
Technical Specification
Thread diameter: 6.3mm
Screw length from under head: 22mm
Bonded washer diameter: 29mm
Head type: Hexagon flange
Head depth: 5mm
Head diameter: 8mm (5/16”)
Tek screw adapter size: 8mm (5/16”)
Commodity Code 7318149990