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Questions and Answers for Grip-Rite 5/16 in. x 4 in. Dual Drive Washer Head Structural Screws 20 per Box

Internet # 318945231

Model # GRSSHW516420

Store SKU # 1007437254

  • 5/16 in. x 4 in. hex/star drive screw replaces lag screws
  • Included hex drive or T-20 star drive for ultimate flexibility
  • Made from steel for strength and durability