Hole diametre is 8mm - screw is M4 x 35mm long, rubber is 22.5mm long and fits into 8mm hole. Gap range is 6 - 14mm.W4 Long Cavity Fixer Rubber (2 pieces)SKU: # 11122$10.00PriceGST IncludedQuantity*Only 6 left in stockAdd to CartBuy Now