Feature 1Application Details: Socket is specifically designed for use with 1/2 inch diameter shank oarlocks, suitable for salt water. 2Unique Design: Mirror polish and plastic bearings prevent rattling while the oarlocis in use, bringing you an excellent use experience. 3Rust Proof: Durable 316 cast stainless steel construction provides excellent rust protection for use in harsh water environments. 4High Performance: Oarlock sockets provides more horizontal absolute strength, which is attached to the inside of the gangway wall and screwed on the top and side. 5Delicate Appearance: Sockets have a smooth surface and exquisite appearance that will maintain its bright look after a long time in the water.Item Type:RowlockSocketMaterial: 316 StainlessSteel, ABSAperture: 1/2inMounting: 4 x10 screws to install each socket (not delivered) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x RowlockSocket