Conquest 5/8" x 28" A307 Grade A Hex Bolt with 6" Thread - Hot Dip Galvanized
Lengths
Thread Length
Description
Description
5/8" x 28" Conquest A307 Grade A Hex Bolt with 6" Thread - Hot Dip Galvanized
When pairing a nut with a hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt.
Conquest A307 Grade A Hex Bolts in 5/8" diameter feature a 6" coarse thread (11 TPI) and are engineered to perform in tough outdoor environments. Built from carbon steel and hot dip galvanized for superior rust protection, they’re trusted in construction projects where strength, durability, and long-lasting grip are essential.
5/8" Hex Bolts for Timber, Framing, and Steel Assemblies
Manufactured to ASTM A307 Grade A standards, these bolts deliver consistent performance in decks, fencing, infrastructure, and post-frame buildings. The extended 6" threaded section offers deep engagement across various substrates, while the hex head design ensures easy, torque-tight installation with standard tools.
Key Features
- 5/8" Diameter Carbon Steel: Offers dependable strength for medium-duty structural and general construction.
- 6" Coarse Thread Length (11 TPI): Ensures deep, secure engagement across diverse materials.
- ASTM A307 Grade A Compliant: Built to meet structural standards for general-purpose use.
- Hot Dip Galvanized Finish: Protects against corrosion in outdoor and high-moisture applications.
- Hex Head Design: Compatible with common sockets and wrenches for fast, secure installation.
- Versatile Field Use: Ideal for decks, post-frame buildings, fencing, and structural repairs.
- Built for Pros and DIYers: Trusted by contractors, builders, and facilities managers alike.
Common Applications
- Outdoor decking and fencing installations
- Wood-to-metal fastening for agricultural or utility structures
- General construction in high-moisture environments
- Repair and maintenance of outdoor wooden frameworks
- Clamping multi-layer assemblies requiring full thread engagement
Installation Tips
- Always pair with hot dip galvanized nuts and washers to maintain corrosion resistance and thread compatibility
- Tighten bolts evenly across their full length to prevent misalignment or overtightening in softer materials
- Inspect for coating buildup and clean threads if needed before installation for a smooth fit
California Residents: WARNING
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.
Specifications
Specifications
Reviews
Reviews
Customer Reviews
I needed some long lag bolts for a tree fort. Fasteners Plus had the product and shipped quickly. Shipping was pricey, but the package was an unusual size and heavy. I could not find what I needed on Amazon. The one drawback was that I could not locate the appropriate nuts and washers on their website. I suppose I could have called. I would suggest to their web manager to link the appropriate washers and nuts when ordering bolts. I did find what I needed at our local Menards. Menards does not carry the desired bolts in the required length.
My husband are Do it ourselves kind of people and we built a pergola, but needed longer
bolts that cannot be found in most Hardware stores. Searched around and found Fasteners Plus and received our order in 3 days. Thank you so much.
Recently recieved the exact size bolt I really needed for my e-bike, at a decent price, good service, and with speedy shipping. Therefore, I recommend these products and rate this company with a full 5 stars 🌟
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