1/4-Inch Hex Head drive reduces cam-out for easier installation Shank is specifically designed to match the fastener holes in Simpson Strong-Tie connectors Optimized heat treated for strength Mechanically-galvanized coating meets ASTM B695 class 55 Connectors installed with SD screw code listed under ICC-ES ESR-3096, Imported
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Item# : SPM10032116902
Model # : SD10212R500