Screw - Volvo Penta (3858994) is a high-quality cap screw made with the highest quality materials. It has a cylindrical shaft with outer threads and a big head. The head has a wider diameter than the threaded area, which provides a positive mechanical stop when tightening the screw. This hexagonal-headed screw has a threaded shank that runs the length of the screw and is often fastened without a nut into a threaded or tapped hole or in a machine tap. Key Features: Top-quality Cap screw 100% Brand new made with high-quality materials For heat exchanger and freshwater cooling Tightened without a nut into a tapped hole or machine tap Shank threaded throughout its length Compact. Easy to carry, store and install. Built to perform Proven for its exceptional dependability to ensure it meets our standards for quality, durability, and high reliability Approved marine-grade product Specifications: Brand: Volvo Penta Condition: Brand New Item Number: 3858994 Weight: 0.07 LBS Material: Stainless Steel Note: For Marine applications Volvo Penta Exploded view / schematic Heat Exchanger, V-drive with Freshwater Cooling