Minerallac Grade 2 Steel Hex H...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$16.00
Minerallac Grade 2 Steel Hex Head Bolt 1/4"-20 Zinc Plated Fully Threaded, 100 Pack

Minerallac Grade 2 Steel Hex Head Bolt 1/4"-20 Zinc Plated Fully Threaded, 100 Pack

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Model: 55008J

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

$16.00
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Minerallac Grade 2 Steel Hex Head Bolt 1/4"-20 x 3/4" Zinc Plated Fully Threaded

Professional Grade Fastening Solution with Corrosion Protection

The Minerallac Grade 2 Steel Hex Head Bolt delivers reliable fastening performance for professional applications. This fully threaded bolt features medium carbon steel construction that is quenched and tempered for enhanced strength, with zinc plated finish providing corrosion resistance. The hex head design ensures secure installation with standard tools, making it ideal for structural connections and equipment mounting applications.

Professional Features & Benefits

  • Grade 2 Steel Construction: Medium carbon steel material quenched and tempered provides reliable strength and durability for demanding fastening applications.
  • 1/4"-20 Thread Specification: Standard coarse thread pattern ensures compatibility with common nuts and threaded components for versatile installation options.
  • 3/4" Length: Optimal length provides sufficient engagement for secure connections while accommodating various material thicknesses.
  • Zinc Plated Finish: Corrosion-resistant coating extends service life and maintains appearance in indoor and outdoor environments.
  • Hex Head Design: Standard hex head configuration allows for efficient installation and removal using common wrenches and socket tools.
  • Fully Threaded: Complete thread coverage maximizes holding power and provides flexibility in positioning and adjustment.

Technical Specifications

  • Country Of Origin: China
  • Head Color: Silver
  • Head Height: May-32
  • Head Type: Hex Head
  • Head Width: 16-Jul
  • Product Finish: Zinc Plated
  • Product Length: 3/4 in
  • Product Material: Grade 2 Steel
  • Product Size: 1/4"-20 x 3/4
  • Product Type: Hex Cap Bolt
  • Thread Size: 20
  • Thread Type: Coarse

Professional Applications

  • Structural Steel Connections
  • Equipment Mounting and Assembly
  • Machinery Installation
  • Electrical Panel and Enclosure Assembly
  • HVAC System Installation
  • Industrial Equipment Maintenance
  • Construction and Building Applications

Why Choose Minerallac Quality?

Minerallac delivers consistent quality in fastening solutions with Grade 2 steel construction and zinc plated corrosion protection. The quenched and tempered medium carbon steel provides reliable performance, while the professional finish ensures long-term durability in demanding applications.

Manufacturer Resources

Product Specs

Head Width:
16-Jul
Thread Size:
20
Thread Type:
Coarse
Product Type:
Hex Bolt
Head Height:
May-32
Head Type:
Hex Head
Department:
Electrical
Head Color:
Silver
Product Finish:
Zinc Plated
Product Material:
Grade 2 Steel
Product Subgroup:
Hex Bolts & Nuts
Product Group:
Hangers, Supports & Fasteners

Minerallac 55008J – Frequently Asked Questions

1) Will a 1/4"-20 coarse thread bolt match standard nuts and strut hardware?
Yes. The thread is 1/4 inch diameter, 20 threads per inch, UNC coarse, which is the standard coarse pitch for 1/4 inch fasteners. It mates with any standard 1/4"-20 nut, coupling, insert, or channel nut without an adapter. If the nut on your assembly is 1/4"-28 fine thread, this will not thread in.
2) What wrench or socket size fits these Minerallac hex bolts?
The head is a standard hex, and on a 1/4"-20 bolt that is a 7/16 inch wrench or socket. Nothing proprietary, so a basic socket set or a 7/16 nut driver handles install and removal.
3) Can I use these zinc plated bolts outdoors or in a damp mechanical room?
Zinc plating gives these Grade 2 steel bolts corrosion resistance suitable for indoor and general outdoor use, which covers rooftop HVAC curbs, enclosure assembly, and damp mechanical spaces. For constant salt spray, standing water, or coastal exposure, zinc plated carbon steel is the wrong choice and you want stainless.
4) Is a Grade 2 bolt strong enough for structural steel, or do I need Grade 5?
Grade 2 is a general purpose fastener grade. These are the right pick for equipment mounting, electrical panel and enclosure assembly, HVAC installation, and machinery anchoring to existing threaded hardware. If your drawing calls out a specific bolt grade or torque spec for a load bearing connection, buy to that callout instead, since a higher grade bolt is not interchangeable with Grade 2 on an engineered joint.
5) Do these bolts come with nuts and washers?
No. The pack is bolts only, 100 of them. Order 1/4"-20 hex nuts, flat washers, and lock washers separately if the connection needs them.
6) Will these bolts fit a 1/4 inch hole or do I need to drill larger?
A 1/4"-20 bolt needs a clearance hole slightly over 1/4 inch; 9/32 inch is the standard clearance drill, and 17/64 for a close fit. A true 1/4 inch hole will not pass the bolt freely.
7) Why pick a fully threaded bolt instead of a partially threaded one?
Full thread runs to the head, so the same bolt works across a range of material thicknesses and you get maximum thread engagement in a nut or tapped hole. That matters when you are shimming, stacking washers, or do not know the exact grip length until you are at the opening. A partially threaded bolt with a shoulder is preferred where you want the smooth shank taking shear in a reamed hole.
8) Where are Minerallac hex cap bolts manufactured?
These zinc plated hex cap bolts are made in China. If your project carries a domestic sourcing requirement such as a Buy America clause, that is worth confirming against the spec before you order.
How fast can I get the Minerallac 55008J 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 55008J come with a warranty?
Absolutely. The Minerallac 55008J 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 55008J?
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 55008J 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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