Fine commodities 8 Inch Standard Kayak Hatches, ABS Material Round Hatch(Distribution screw) AT THE BEGINNING OF THE PRODUCT, NO SCREWS ARE PROVIDED. 16 SCREWS ARE NOW COMPLIMENTARY Using ABS material, very durable,Heat-resistant, anti-aging, does not change color 16 SCREW HOLES(Distribution screw), compared with other products, more stable and durable SIZE: 8 inch SEAL: Leather ring set