Minerallac Grade 2 Steel Hex Head Tap Bolt 3/8-16 x 3/4" Zinc Plated Fully Threaded
Professional Grade Fastening Solution for Industrial & Commercial Applications
The Minerallac Grade 2 Steel Hex Head Tap Bolt delivers reliable fastening performance with its medium carbon steel construction that is quenched and tempered for enhanced strength. This fully threaded 3/8-16 x 3/4" bolt features zinc plated finish for corrosion resistance and professional hex head design for secure installation in demanding applications.
Professional Features & Benefits
- Grade 2 Steel Construction: Medium carbon steel material provides superior strength and durability for heavy-duty fastening applications.
- Quenched & Tempered Process: Heat treatment enhances the bolt's mechanical properties and resistance to deformation under load.
- Zinc Plated Finish: Protective coating delivers corrosion resistance and extends service life in various environmental conditions.
- Fully Threaded Design: Complete thread coverage maximizes engagement and holding power throughout the bolt length.
- Hex Head Configuration: Standard hex head design enables secure installation with common tools and provides reliable torque application.
- Precision Threading: 3/8-16 coarse thread specification ensures proper fit and optimal clamping force in standard applications.
Technical Specifications
- Country Of Origin: China
- Head Color: Silver
- Head Height: 15/64
- Head Type: Hex Head
- Head Width: 16-Sep
- Product Finish: Zinc Plated
- Product Length: 3/4 in
- Product Material: Grade 2 Steel
- Product Size: 3/8-16 x 3/4
- Product Type: Hex Cap Bolt
- Thread Size: 16
- Thread Type: Coarse
Professional Applications
- Industrial Equipment Assembly
- Commercial Construction Projects
- Machinery Installation & Maintenance
- Structural Steel Connections
- Heavy-Duty Mechanical Fastening
- Professional Repair & Service Operations
Why Choose Minerallac Quality?
Minerallac delivers professional-grade fastening solutions with consistent quality and reliable performance. The Grade 2 steel construction with zinc plated finish ensures long-lasting durability and corrosion resistance for demanding industrial and commercial applications.
Manufacturer Resources
Product Specs
- Head Color:
- Silver
- Head Height:
- 15/64
- Head Type:
- Hex Head
- Head Width:
- 16-Sep
- Product Finish:
- Zinc Plated
- Product Length:
- 3/4 in
- Product Material:
- Grade 2 Steel
- Product Size:
- 3/8-16 x 3/4
- Product Type:
- Hex Bolt
- Thread Size:
- 16
- Thread Type:
- Coarse
- Department:
- Electrical
- Product Subgroup:
- Hex Bolts & Nuts
- Product Group:
- Hangers, Supports & Fasteners
Minerallac 55412J – Frequently Asked Questions
1) What size and thread does the Minerallac 55412J hex tap bolt use?
It is a 3/8-16 x 3/4 inch bolt, so a 3/8 inch diameter shank with 16 threads per inch coarse thread, and 3/4 inch of length under the head. Coarse 3/8-16 is the standard UNC pitch for 3/8 inch fasteners, so it mates with any standard 3/8-16 nut or tapped 3/8-16 hole.
2) Can I thread this bolt into a tapped hole in a strut or channel insert, or does it need a nut?
A tap bolt is threaded the full length right up to the head, so the Minerallac 55412J works either way. At only 3/4 inch long with full thread, every bit of it engages, which is what you want when running into a tapped hole, a channel nut or a strut insert. With no unthreaded shank there's no shoulder to bottom out before the head seats.
3) How thick a material stack will a 3/4 inch long 3/8 bolt actually clamp?
Usable grip is the 3/4 inch length minus whatever you need for nut engagement, so in practice it's a short-stack fastener: think single-layer strut, bracket or clip attachment rather than two pieces of structural steel. If your stack plus nut needs more than 3/4 inch, move up to a longer 3/8-16 bolt.
4) Is a zinc plated bolt like this okay outdoors or in a damp mechanical room?
Zinc plating gives this bolt general corrosion resistance, which covers indoor mechanical rooms, equipment assembly and protected exterior work. It is a plated carbon steel bolt, not stainless or hot dip galvanized, so for direct weather exposure, wet process areas or coastal installs choose a stainless or hot dip galvanized 3/8-16 instead.
5) Does the Minerallac 55412J come with nuts or washers?
No. The 55412J is the bolt only, a 3/8-16 x 3/4 inch hex head tap bolt. Order 3/8-16 coarse nuts and 3/8 flat or lock washers separately if the connection needs them.
6) What wrench or socket fits the head on this 3/8 inch hex bolt?
The head height is 15/64 inch. Across the flats, a standard 3/8-16 hex cap screw takes a 9/16 inch wrench or socket, which is the common size to have on the truck for this diameter.
7) Will this hex bolt match the silver zinc hardware already on my strut and hangers?
It should blend in. The head is silver with a zinc plated finish, the same bright plating used on most strut, clips and channel nuts, so a replacement bolt won't stand out against existing supports on the run.
How fast can I get the Minerallac 55412J 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 55412J come with a warranty?
Absolutely. The Minerallac 55412J 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 55412J?
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 55412J from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
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every order.
Our team is always ready to help you choose the right product for your project.