Fastap Tech7 SS150SQ #8 x 1-1/2" Stainless Steel Self Drilling Wood Screws - Square Drive Head 75 per Package Tech 7 Stainless Steel For Exterior Carpentry #8 wire diameter x 1-1/2" Length J-1 stainless and Power Point self drilling tip #2 Square drive and self countersinking flathead with nib design 75 Screws per Package