Marine Grade Stainless Quick Release Pin w/ Drop Cam & Spring 1/4" x 7/8" Grip Four Quick Release Pin w/ Drop Cam & Spring 1/4" O.D. x 7/8" Grip 316 Stainless Steel 1" Pull Ring Four Stainless Steel Quick Release Pins - Repleaces screws in deck hinge. The diameter of the ring is 1 inch. The diameter of pin is 1/4 inch. The length of pin is 1.5 inch Quick Release Pin for bimini top, boat tops and support poles, deck hinge etc Diameter 1/4", Total Length 1.5", Effective Length 1" All parts are made of Marine grade 316 stainless steel, Excellent seawater corrosion resistance and durable Slidable spring and drop cam make it easy for installing and removing Widely used in various shipbuilding, ship outfitting