Pack of 500 coarse thread square drive self tapping wood screws used with Pocket Hole Jigs. Ideal for softer timbers, plywood and particle board as thread gives better holding power.. Square drive self tapping screws that works with a No.2 square drive bi Specification Thread=Coarse Size=No.7 (3.6 mm) x 25 mm Material=Steel Finish=Zinc coated Thread Coarse Size No.7 (3.6 mm ) x 25 mm Material Steel Finish Zinc coated
