Product details:

#10 x 4 inch Phillips Bugle Head, Coarse Thread screws, PhosphateThese 4 inch length #2 Phillips drive Bugle Head PHOSPHATE COATED Type 'S' sharp point screws are #10 diameter COARSE THREAD. Multi-purpose screw used in many wood to wood applications. Phosphate is a conversion coating used to add mild corrosion resistance and for lubricity. Meets ASTM A 510 for carbon steel manufacturing. Each box contains approximately 800 screws (16 pounds)Product image is a likeness. Actual screw is not shown. Some screw lengths beyond 1-5/8 inch may follow the industry standard 2/3 partial thread length rule. Manufactured according to I.F.I. Standard.Applications Include:Attaches gypsum board, foam and insulation to wood.