Back Home / Fasteners / Screws / U DRIVE ROUND HEAD #4 X 1/4″ U DRIVE ROUND HEAD #4 X 1/4″ SKU: X4X14UD Categories: Fasteners, Screws For making permanent fastenings in metals and plastics., when forced into the work under pressure. Steel. Nominal screw size #4. Length 1/4″. For making permanent fastenings in metals and plastics., when forced into the work under pressure. Steel. Nominal screw size #4. Length 1/4″. Case Quantity: 100 Log In For Pricing