140 Piece Assorted Stainless Steel Tapping Screw Set is manufactured from stainless steel for increased durability. Specially designed to be self-tapping when working with metal. Includes handy carrying case for quick and convenient storage. Contains 140 assorted flat, oval and pan headed screws. Manufactured from stainless steel for increased durability. Specially designed to be self-tapping when working with metal. Includes handy carrying case for quick and convenient storage. Contains 140 assorted flat, oval and pan headed screws (inch): Flat headed screws: No. 6 x 5/8 (x25), No. 8 x 3/4 (x15) & No. 8 x 1-1/4 (x10). Pan headed screws: No. 6 x 5/8 (x25), No. 8 x 3/4 (x15) & No. 8 x 1-1/4 (x10). Oval head screws: No. 6 x 5/8 (x25) & No. 8 x 3/4 (x15).