When corrosion isn't an option, 316 stainless steel is the answer. Conquest Carriage Bolts are designed for demanding environments, offering exceptional strength and resistance to rust, even in coastal, chemical, or high-moisture applications. Whether you're building a dock, assembling outdoor structures, or tackling marine or industrial work, these bolts hold tight and stay clean.
Each bolt features a smooth, rounded head that won’t snag or catch, paired with a square neck that locks into place when tightened through wood or metal. The result? A secure, low-profile finish that holds under pressure.
These bolts are available in a variety of lengths and diameters, giving you flexibility across a range of structural or aesthetic projects. From heavy-duty framing to exposed hardware accents, they’re as strong as they are reliable.
Key Features:
316 Stainless Steel: Superior corrosion resistance in saltwater, outdoor, and chemical settings
Rounded Head Design: Clean, low-profile appearance with snag-free performance
Square Neck Under Head: Prevents spinning during installation; ideal for use in pre-drilled holes
Multiple Size Options: Suitable for structural, framing, marine, or general-purpose use
Durable Finish: Maintains clean look over time, even in harsh environments
Common Applications:
Outdoor framing & fencing
Decks, docks & boardwalks
Marine & saltwater environments
Machinery & industrial assemblies
Decorative hardware in timber framing
Installation:
Use in pre-drilled holes; the square neck grips into wood or metal to prevent spinning
Tighten with a nut and washer on the opposite side for a flush, secure hold
×WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.
I Google searched 5/16 x 8" bolt and they were in stock. I ordered 3 bolts and they came with nuts. Shipping was quick. Thanks.
We are on a mission to expand our national reach—offering more product selection and faster delivery times. So far we’ve made remarkable progress in our expansion efforts, effectively doubling our capacity by adding a new 47,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 60,000 sq. ft. facility in Urbana, Iowa.
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