Schaefer Stainless Steel Open Base Cleat fits Up to 1/2-Inch Line 316 Stainless Steel, electro polished Fits up to 1/2 inch line 6 Inch long (152mm), 1.2 Inch(30mm) height Requires 1/4 inch FH fasteners 1.5 Inch (38mm) center to center hole spacing