This premium side mount features a concave base to fit onto tubing for boat tops and is used with an eye end. The side mount includes a low profile, 90-degree angle, and marine-grade stainless steel type 316. It provides a smooth surface, durable performance, and easy use. This side mount does not include the screw. The recommended screw is a 1/4”- 20 screw. Our Knurl screw 289430 as well as Machine screw 263914 are good solutions to mount the eye end. The two base holes accept a #10 screw.