Testa esagonale rondella calcestruzzo 1/4" x 1-1/4" vite muratura rubinetto ancoraggio blu (3.000)

USE A 5/16" DRILL BIT. FASTENER IS PROPERLY INSTALLED WHEN HEAD SITS FLUSH WITH THE WORK SURFACE. DO NOT OVER TORQUE AS IT CAN CAUSE THE HEAD TO SNAP OR STRIPPING OF THE RECESS. Concrete screws are a special threaded screw, with hardened notched threads and high-low threads.

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