Sea-Dog Line Barrel Bolts

Sea-Dog Line Barrel Bolts: Trusted Marine Security Hardware

Sea-Dog Line has been a cornerstone of the marine hardware industry for over a century, and their line of barrel bolts reflects that same commitment to quality and durability. Whether you're securing a cabin door, a hatch, a gate, or a storage compartment aboard your vessel, Sea-Dog barrel bolts deliver the reliable latching performance that boaters and marine professionals have depended on for generations.

Built for the Marine Environment

What sets Sea-Dog Line apart in the barrel bolt category is their deliberate choice of materials engineered to withstand harsh saltwater and offshore conditions. Their lineup spans two primary construction types, each suited to different applications and budgets:

• Chrome-Plated Extruded Brass: Sea-Dog offers barrel bolts constructed of extruded brass with a chrome-plated finish, delivering a classic look with solid corrosion resistance. These are a popular choice for interior cabin hardware where aesthetics and function go hand-in-hand.
• Sand Cast Brass (Chrome Plated): For slightly larger applications, Sea-Dog's sand cast brass, chrome-plated barrel bolts provide additional heft and a refined profile — available in sizes such as 2-7/8" for doors and hatches that see more frequent use.
• Investment Cast 316 Stainless Steel: The premium tier of Sea-Dog's barrel bolt range is built from investment cast 316 stainless steel, prized for its superior corrosion resistance. The Heavy Duty model stretches to 6-1/2" in length, making it ideal for larger hatch covers and companionway doors exposed directly to the elements.

Versatile by Design

Sea-Dog barrel bolts are engineered for flexibility in mounting and use. They are appropriate for vertical, horizontal, left, or right-hand applications, so a single hardware solution fits a wide range of installation scenarios. In vertical use, a notch in the barrel holds the bolt securely in the locked position — a thoughtful detail that prevents accidental unlatching in rough seas or high-vibration environments. All models are surface-mount and install with standard #6 flathead fasteners, keeping installation straightforward for both professionals and DIY boaters.

A Legacy Brand You Can Trust

Sea-Dog Line's roots trace back to the early 1900s, and over 100 years of marine hardware manufacturing inform every product they produce. Based in Everett, Washington, the company stocks an enormous catalog of marine-grade components and has earned recognition from the National Marine Distributors Association as a top-tier supplier. When you choose Sea-Dog barrel bolts, you're choosing hardware from a brand that has proven itself across decades of real-world marine use.

Whether you're retrofitting an older vessel, completing a new build, or simply replacing worn hardware, browse the full selection of barrel bolts available, or explore everything Sea-Dog Line has to offer across their complete marine hardware catalog.