ITEM NAME:Quick Release Pin With 6.3X40 Mm For Top Cover Hinges For Boats img *{margin:0;padding:0;.Quick release pin for easy installation. 2 Pieces Boat Hinge Pin. Made of Marine Grade 316 Stainless Steel, very tough and resistant to corrosion. Material:316 Stainless Steel. Color may vary slightly due to the color setting of each individual monitor.