Minerallac Grade 5 Steel Hex H...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$121.43
Minerallac Grade 5 Steel Hex Head Cap Screw 1/2-13 x 3" Zinc Plated Partial Thread, 100 Pack

Minerallac Grade 5 Steel Hex Head Cap Screw 1/2-13 x 3" Zinc Plated Partial Thread, 100 Pack

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Model: 55849J

In Stock (leaves warehouse same day if ordered before 3pm ET)

$121.43
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Minerallac Grade 5 Steel Hex Head Cap Screw 1/2-13 x 3" Zinc Plated Partial Thread

Professional Grade Fastening Solution for Heavy-Duty Applications

The Minerallac Grade 5 Steel Hex Head Cap Screw delivers reliable fastening performance with 1/2-13 threading and 3-inch length. Constructed from medium carbon steel that is quenched and tempered, this hex head cap screw features zinc plated finish for corrosion resistance and partial threading for versatile installation applications. The Grade 5 steel construction provides superior strength and durability for demanding professional installations.

Professional Features & Benefits

  • Grade 5 Steel Construction: Medium carbon steel, quenched and tempered for maximum strength and reliability in heavy-duty applications
  • 1/2-13 x 3" Dimensions: Standard coarse threading with 3-inch length provides versatile fastening capability for various installation requirements
  • Zinc Plated Finish: Corrosion-resistant coating extends service life and maintains appearance in challenging environments
  • Hex Head Design: Standard hex head configuration allows secure installation with common tools and provides reliable torque transfer
  • Partial Threading: Optimized thread pattern ensures proper engagement while allowing smooth installation through materials
  • Three Hash Mark Identification: Clear Grade 5 marking system enables quick identification and quality verification during installation

Technical Specifications

  • Country Of Origin: China
  • Head Color: Silver
  • Head Height: 16-May
  • Head Type: Hex Head
  • Head Width: 4-Mar
  • Product Finish: Zinc Plated
  • Product Length: 3 in
  • Product Material: Grade 5 Steel
  • Product Size: 1/2-13 x 3
  • Product Type: Hex Cap Bolt
  • Thread Size: 13
  • Thread Type: Coarse

Professional Applications

  • Structural Steel Construction and Assembly
  • Heavy Machinery Installation and Maintenance
  • Industrial Equipment Mounting and Fastening
  • Commercial Building Construction Projects
  • Automotive and Transportation Applications
  • Manufacturing and Production Equipment
  • Professional Repair and Maintenance Operations

Why Choose Minerallac Quality?

Minerallac delivers consistent quality and reliability with Grade 5 steel construction and zinc plated finish for long-lasting performance. The medium carbon steel construction with quench and temper treatment ensures dependable strength, while the three hash mark identification system provides quality assurance for professional installations.

Manufacturer Resources

Product Specs

Country Of Origin:
China
Head Color:
Silver
Head Height:
16-May
Head Type:
Hex Head
Head Width:
4-Mar
Product Finish:
Zinc Plated
Product Length:
3 in
Product Material:
Grade 5 Steel
Product Size:
1/2-13 x 3
Product Type:
Hex Cap Bolt
Thread Size:
13
Thread Type:
Coarse
Department:
Electrical
Product Subgroup:
Hex Bolts & Nuts

Minerallac 55849J – Frequently Asked Questions

1) What thread does the Minerallac 55849J hex cap screw take, and will it fit a 1/2-13 tapped hole or standard nut?
It's a 1/2-13 coarse thread, 3 inches long, so it threads into any standard 1/2-13 UNC tapped hole or mates with a standard 1/2-13 coarse nut. Thread pitch is 13 threads per inch. Fine-thread 1/2-20 holes will not accept it.
2) Is this hex bolt fully threaded or partially threaded, and does that matter for my joint?
The Minerallac 1/2-13 x 3 inch hex cap screw is partially threaded, so it carries a smooth shank under the head with threads only at the business end. That shank is what you want in a shear joint or a bolted steel connection, since the unthreaded body bears against the hole. If you need thread engagement along the full 3 inches, for example when clamping variable stack-ups or using a nut anywhere on the shank, order a fully threaded bolt instead.
3) What wrench or socket size fits the head on this Minerallac hex cap screw?
It uses a standard hex head, and a 1/2-13 hex cap screw takes a 3/4 inch wrench or socket across the flats. Nothing proprietary, no driver bit needed.
4) Can I use these zinc plated bolts outdoors or in a damp mechanical room?
The zinc plating on these 1/2-13 bolts gives corrosion resistance for general indoor and sheltered use, mechanical rooms, equipment rooms, and interior structural work. Zinc is a sacrificial coating, not stainless, so for permanently wet, coastal, or chemically aggressive exposure specify hot dip galvanized or stainless fasteners instead.
5) Do the Minerallac 55849J hex cap screws come with nuts and washers?
No. The 55849J is bolts only, supplied 100 to a jar. Order 1/2-13 coarse hex nuts and 1/2 inch flat and lock washers separately to complete the assembly.
6) What part number do I order for the 1/2-13 x 3 inch Minerallac hex cap screw, and how many come in a pack?
Minerallac part number 55849J, sold as a 100 piece jar of 1/2-13 x 3 inch Grade 5 zinc plated hex cap screws. One size per part number, so a different length or diameter is a different number.
How fast can I get the Minerallac 55849J delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Minerallac 55849J come with a warranty?
Absolutely. The Minerallac 55849J is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Minerallac 55849J?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Minerallac 55849J from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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