Advanced Tool Design Model  ATD-360  350 Piece Stainless Lock and Flat Washer Assortment
Contains:  (50) #6 lock, (40) #8 lock, (30) #10 lock, (25) 1/4" lock, (15) 5/16" lock, (15) 3/8" lock, (50) #6 flat, (40) #8 flat, (30) #10 flat, (25) 1/4" flat, (15) 5/16" flat and (15) 3/8" flat.