Barton Marine Cleat - Stainless Steel 3/8in. The heavy-duty version is made of 316-grade Stainless Steel and is suited for marina use larger yachts and ships workboats catamarans and fishing boats to hold marine and boat gear securely on lines up to 5/16" (10 mm.)The Barton Marine Quick Cleat offers exceptional value and takes the stress out of tying knots.Quick Cleats are easy to use. Simply rotate the lever on top of the cleat insert the line and release the lever which secures the rope. Quick Cleats are designed to alter rope tension in one direction but grip the rope firmly and securely in the other.Securely hold fenders tender and painter lines Ribs buckets boat gear and equipment covers trampolines and water toys of all kinds. Package Contents: Barton Marine Cleat - Stainless Steel Barton Marine 60040: Cleat - Stainless Steel 3/8in