Schaefer's 4 in. (102mm) Diamond Pad Eye is cast from high quality grade 316 stainless steel and has high safe working loads for heavy-duty use. Its eye is 1 in. (25mm) wide x 5/8 in. (16mm) high and is made from 3/8 in. (10mm) eye stock. Its flat, diamond-shaped base is 4 in. (102mm) long x 2 3/8 in. (60mm) wide. It comes with four 1/4 in. FH(6mm) fasteners that are spaced 3 in. (76mm) on center and are perpendicular to two fastening holes spaced 1 9/16 in. (40mm) on center. Its safe working load is 4,000 pounds (1800kg). The backing plate for this pad eye is SC9755.