SeaLux 316 Stainless Steel Edge Mount Oarlock Sockets for 1/2" Shank (Pair) SeaLux 316 Stainless Steel Edge Mount Oarlock Sockets provide more horizontal sheer strength as it is attach to the inside of the gunwale and are screwed on the top and side.Mirror Polish Finish, with plastic bearings to prevent rattling while Oarlock in use.Durable 316 Cast Stainless Steel construction provide superior corrosion protection perfect for harsh enviroment.Sockets are for use with 1/2 inch diameter shank oarlocks.Require 4 x #10 Screws to install each socket. Sold by the pair. For use in Fresh water and Salt WaterSeaLux Edge Mount Oarlock Sockets is made of 316 Stainless Steel with Mirror Polish finished and come with plastic bearings. Require 4 x #10 Screws to install each socket. Sold by the pair. Edge Mount Oarlock Sockets edge mount on just about any substrate using four #10 type fasteners. Durable 316 Cast Stainless Steel construction lends a Mirror finished look while providing superior corrosion protection. The edge mount provide more horizontal sheer strength as it attach to the inside of the gunwale and are screwed on the top and side. Sockets are for use with 1/2 inch diameter shank oarlocks Mounting hardware is not included, See pictures for installation guide.