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For use with machines. | Made to order For maximum safety, use retaining springs. | T= depth of the female hexagon. Phosphated. | Square drive standards: DIN 3121-H40 and ISO 1174. High-performance alloy steel. | Standards: DIN 3129 and ISO 2725. Dynamic-Drive profile to protect nuts, bolts and tools against wear and unnecessary damage.
Amazon MarketplaceDIN 3129, ISO 2725 Square: 1.1/2 inch DIN 3121-H 40, ISO 1174 Finish: burnished Material: high performance alloy steel, ideal for use with impact tools For use with machines For maximum safety, use mounting springs T = hexagonal socket