Qualfast: 1/2 UNC Steel Hex Full Nut BZP Zinc-Plated. Metric - conform to DIN 934. BSW - conform to DIN 970 UNC - conform to DIN 971. MPN: U01300.050.0001 EAN: 5036140034785 1/2 UNC Steel Hex Full Nut BZP Attributes: Box Quantity: Driving Features: Hexagon Grade: 5 Material: Steel Surface Treatment: Zinc Plated Thread: UNC Thread Direction: Right Thread Size: 1/2