Testa esagonale rondella calcestruzzo 1/4" x 1-1/4" vite muratura rubinetto ancoraggio blu (2500)
(2,500) 1/4" X 1-1/4" Hex Washer Head Masonry Concrete Screw Tapcon Anchor Blue (Threaded or Diamond point what ever is available). FASTENER IS PROPERLY INSTALLED WHEN HEAD SITS FLUSH WITH THE WORK SURFACE.