Packaging: 1x Marine VHF Antenna Mount, 4x Screws. We provided screws for you to install, you can choose or replace the screws according to your actual situation, the screws not applicable to all boats. (Screws are made of 316 stainless steel). This Extra Heavy Duty Ratchet Mount was originally developed to accommodate the big Marine antennas. Extra Heavy Duty construction Two-way ratchet design with handle for deck or bulkhead mounting. Excellent seawater corrosion-resistant and durable. Made from long lasting, top grade electro-polished 316 Stainless steel to a beautiful mirror-like finish. 316 Stainless steel: Marine grade 316 stainless steel, rust-proof, corrosion resistance, oxidation resistance. Marine Mounts mate with standard 1”14 thread mount.Item Dimensions LxWxH: 5 x 3.5 x 3 inches. Color: Silver. Brand: HYS. Date First Available: February 21, 2023. Best Sellers Rank: #107 in Marine Antennas. Country of Origin: China. : B0BWC3V7XL. Manufacturer: QUANZHOU TRUEST COMMUNICATION CO.,LIMITED. Item Weight: 1.19 pounds. Product Dimensions: 5 x 3.5 x 3 inches.