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SKU: HBA-516X58-FT
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Conquest 5/16" x 5/8" A307 Grade A Coarse Fully Threaded Hex Bolt - Plain

Regular price $011
Ships Nov 12 when you order now

Description

5/16" x 5/8" Conquest A307 Grade A Fully Coarse Threaded Hex Bolt with Plain FInish

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.

5/16" A307 Grade A Fully Threaded Hex Bolts – Plain Finish for Indoor Assembly

Conquest 5/16" A307 Grade A Fully Threaded Hex Bolts are built for secure fastening in structural framing, equipment setups, and general shop repairs. Featuring a full-length coarse thread and uncoated carbon steel body, these bolts are ideal for interior use where strength matters but corrosion resistance is not required.

Reliable Hold for Light-Duty Assembly and Framing

These fasteners are manufactured to ASTM A307 Grade A specifications and are commonly used in through-bolting, joint reinforcement, and mechanical builds. The 18 TPI coarse threading ensures strong engagement with wood or metal, while the hex head allows quick tightening with basic hand tools.

Key Features

  • 5/16" Diameter: Compact strength for smaller joints and assembly points.
  • Fully Threaded Shank: Maximizes grip and adjustability across full bolt length.
  • 18 TPI Coarse Threads: Designed for faster threading and solid hold.
  • Plain Carbon Steel: Best for interior jobs without moisture exposure.
  • Hex Head Style: Compatible with standard sockets and wrenches.
  • ASTM A307 Grade A: Built to standard for general structural applications.
  • Common Uses: Framing, fixture mounting, shop work, and maintenance tasks.

Common Applications

  • Interior framing and bracing in wood or light metal structures
  • Machinery setup, alignment, and general equipment assembly
  • Wood-to-metal and metal-to-metal fastening in shop environments
  • Light-duty installations in fabrication or repair settings
  • General-purpose maintenance and hardware replacement indoors

Installation Tips

  • Use with plain finish nuts and washers to maintain thread compatibility and proper seating
  • Tighten using hand or power tools, no specialty tools required
  • Only use in dry, non-corrosive environments unless post-installation treatment is planned

California Residents: WARNING

Specifications

Diameter: 5/16"
Length: 5/8"
Thread Length: Fully Threaded
Thread Type: Coarse
Threads Per Inch: 18
Head Type: Hex Head
Material: Carbon Steel
Finish: Plain
Type: A307 Grade A
Product Weight: 0.02 lbs.
Measuring System: Standard SAE
Manufacturer Name: Conquest Fasteners
Quantity: 1 Bolt

Reviews
(2)

Customer Reviews

Based on 2 reviews
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J
Jeffery Gaiters II
Absolutely a mechanics best friend

Easiest bolt service I’ve seen the bolts showed up the next day I cried tears of joy dang near.i will be coming back for more

C
C Crain
7" Bolts

Was as advertised and received item in a timely manner. Would buy from Fasteners Plus again.

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1-2 day shipping

Fast, Same-Day Shipping

Our multiple distribution centers allow us to reach nearly 80% of the U.S. within 1-2 business days for all in-stock items. With thousands of items in stock & ready to ship, orders placed before 4:00pm CST ship out the same day.

Employee-owned

Industry-best Customer Service

As employee-owners, we take customer service very seriously. Our team members are dedicated, professionally-trained, and have decades of combined experience serving the industry. Always speak with a real person and never wait more than 1 business day.

Manufactured in Iowa Headquarters

Custom Product Solutions

Our Iowa-based 23,000 square foot manufacturing facility was carefully crafted for the high quality, custom production of tie-down straps and chains, lifting slings, cargo nets, and more. Your vision brought to life.

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