Stainless Steel 90Adeg Concave Base Deck HingeDeck Hinges are designed to mount horizontally and attach an eye end secured to tubing in Bimini top applications. Concave Hinges are designed to rail mount on 7/8" tubing. Angled Hinges are used for mounting items on slanted surfaces like sloped gunwales. 3/16" pin size. Constructed of UV stabilized injection molded nylon. Installs with two #10 FH fasteners (not included). Available in black or white.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.