Perko Side Mnt Rowlock Sockets Zinc Pr 1186-DP0-ZNC by Perko $16.52 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Perko Side Mount Rowlock Sockets Pair #9-1186DP0ZNC Plain Zinc Black with plastic bearings Size: 4"L x 7/8'W x 1-1/8"D Screw size is #10.