Minerallac 3/8-16 Grade 2 Hex ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$69.47
Minerallac 3/8-16 Grade 2 Hex Head Tap Bolt, Zinc Plated, 100-Pack

Minerallac 3/8-16 Grade 2 Hex Head Tap Bolt, Zinc Plated, 100-Pack

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Model: 55434J

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

$69.47
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Minerallac 3/8-16 x 1/2" Grade 2 Hex Head Cap Bolt

Professional-Grade Fastening Solution with Zinc Plated Finish

The Minerallac 3/8-16 x 1/2" Grade 2 Hex Head Cap Bolt delivers reliable fastening performance for professional applications. Constructed from medium carbon steel that is quenched and tempered, this fully threaded bolt features a durable zinc plated finish for enhanced corrosion resistance. The hex head design provides secure grip and efficient installation with standard tools.

Professional Features & Benefits

  • Grade 2 Steel Construction: Medium carbon steel material quenched and tempered for optimal strength and durability in demanding applications.
  • 3/8-16 Thread Specification: Coarse thread design provides strong holding power and reliable engagement in threaded applications.
  • Zinc Plated Finish: Protective coating enhances corrosion resistance and extends service life in various environmental conditions.
  • Hex Head Design: Standard hex head configuration allows for efficient installation and removal using common tools.
  • Fully Threaded Construction: Complete threading along the 1/2" length maximizes engagement and holding strength.
  • Professional Grade Quality: Manufactured to meet industrial standards for consistent performance and reliability.

Technical Specifications

  • Country Of Origin: Taiwan
  • Head Color: Silver
  • Head Height: 15/64
  • Head Type: Hex Head
  • Head Width: 16-Sep
  • Product Finish: Zinc Plated
  • Product Length: 1/2 in
  • Product Material: Grade 2 Steel
  • Product Size: 3/8-16 x 1/2
  • Product Type: Hex Cap Bolt
  • Thread Size: 16
  • Thread Type: Coarse

Professional Applications

  • Structural Assembly and Construction Projects
  • Mechanical Equipment Installation
  • Industrial Machinery Assembly
  • Electrical Panel and Enclosure Mounting
  • HVAC System Installation
  • General Maintenance and Repair Operations
  • Professional Trade Applications

Why Choose Minerallac Quality?

Minerallac hex head cap bolts provide dependable fastening solutions backed by quality manufacturing standards. The Grade 2 steel construction with zinc plated finish ensures reliable performance and corrosion resistance for professional applications requiring durable hardware components.

Manufacturer Resources

Product Specs

Department:
Electrical
Product Finish:
Zinc Plated
Product Type:
Hex Bolt
Product Subgroup:
Hex Bolts & Nuts
Product Group:
Hangers, Supports & Fasteners

Minerallac 55434J – Frequently Asked Questions

1) Will a 3/8-16 tap bolt thread into my strut channel nuts and standard 3/8 inch electrical hardware?
Yes. The thread is 3/8-16, the standard coarse pitch used by 3/8 inch strut nuts, beam clamps, threaded rod couplings and most electrical mounting hardware. Any 3/8-16 nut or tapped hole will take it. Just check your engagement depth: with the 1/2 inch bolt you only have 1/2 inch of thread total, so material thickness plus nut height has to fit inside that.
2) Is Grade 2 strong enough, or do I need Grade 5 bolts for this job?
Grade 2 steel is the general-purpose strength class. These Minerallac hex bolts are Grade 2, which suits panel and enclosure mounting, HVAC hangers, equipment installation and general MRO work. If your drawing or engineer calls out a structural connection or a specific torque spec that names Grade 5 or Grade 8, Grade 2 is not a substitute. Read the head: Grade 2 is unmarked, Grade 5 carries three radial lines.
3) What size wrench or socket fits the head on these 3/8-16 hex bolts?
A 9/16 inch wrench or socket. That is the standard across-flats size for a 3/8 inch hex cap bolt, and the head on these Minerallac bolts is a plain hex head, so nothing special is needed. Head height is 15/64 inch, which matters if you are socketing into a tight recess.
4) Are zinc plated bolts OK outdoors or in a damp mechanical room?
Zinc plating gives corrosion resistance for general indoor and sheltered use, and it is what these Minerallac bolts carry. It is a sacrificial coating, not stainless, so continuous wet exposure, coastal air, or chemical washdown will eventually take it. For those conditions specify hot dip galvanized or stainless instead.
5) Do these Minerallac hex bolts come with nuts and washers?
No. These are bolts only, sold as a 100-piece pack in either 1/2 inch or 2 inch length. Order 3/8-16 hex nuts and 3/8 inch flat or lock washers separately to complete the assembly.
6) Which length should I order for mounting an electrical enclosure to strut?
For clamping an enclosure foot or bracket to strut with a channel nut, the 1/2 inch bolt (55408J) is usually the right call, since it is fully threaded and does not bottom out in the channel nut. Go to the 2 inch bolt (55434J) when you are stacking material, going through a wood backboard, or need to pick up a spacer or standoff.
How fast can I get the Minerallac 55434J 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 55434J come with a warranty?
Absolutely. The Minerallac 55434J 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 55434J?
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 55434J from ZenSupply?
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