Steel Sheet Metal Screw, Black Oxide Finish, Pan Head, Square Drive, Type A, #8-15 Thread Size, 1" Length (Pack of 100) $10.72 ($0.11/Screws) In Stock. Ships from and sold by . FREE Shipping on orders over $25.00. DYNAMITT 100 Pan White Head Screw # 8 X 1" Quad Drive Self Tap Drill Screws Cargo RV. $10.70 ($0.11/Count) In Stock.