Crafted with durable glass-filled nylon and a 316 stainless steel handle, the Whitecap Waterproof Slam Latch is perfect for creating a watertight seal on your hatches. Its locking design ensures security and easy access while the included backing plate provides added stability. Designed for use with supplied gasket to make a hatch watertight.• Glass-filled nylon with 316 stainless steel handle• Locking• L-Keeper included• Easy upgrade fits Legacy 2-1/2" cutoutsSpecsOuter Diameter: 3"Cutout: 2-1/2"Surface Depth: 1/8" - 5/8" Locking design ensures security and easy access Included backing plate provides added stability Designed for use with supplied gasket to make a hatch watertight | Waterproof Nylon / 316 Stainless Steel Slam Latch, Locking