Minerallac 1/4-20 x 1" Grade 5...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.86
Minerallac 1/4-20 x 1" Grade 5 Hex Head Cap Screw with Zinc Plated Finish, 100 Pack

Minerallac 1/4-20 x 1" Grade 5 Hex Head Cap Screw with Zinc Plated Finish, 100 Pack

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Model: 55017J

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

$62.86
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Minerallac 1/4-20 x 1" Grade 5 Hex Head Cap Screw with Zinc Plated Finish

Professional Grade Fastening Solution for Industrial Applications

The Minerallac Grade 5 hex head cap screw delivers reliable fastening performance with its medium carbon steel construction, quenched and tempered for enhanced strength. This fully threaded 1/4-20 x 1" fastener features zinc plated finish for corrosion resistance and includes three hash marks for grade identification, making it ideal for professional electrical and industrial applications requiring secure connections.

Professional Features & Benefits

  • Grade 5 Steel Construction: Medium carbon steel, quenched and tempered provides superior tensile strength and durability for demanding applications
  • Zinc Plated Finish: Corrosion-resistant coating extends service life in various environmental conditions
  • Fully Threaded Design: Complete thread coverage maximizes engagement and holding power throughout the fastener length
  • Hex Head Configuration: Standard hex head design allows for efficient installation with common tools and provides reliable torque transfer
  • Grade Identification Marks: Three hash marks clearly identify Grade 5 specification for quality assurance and compliance verification
  • Precision Threading: 1/4-20 coarse thread specification ensures proper fit and reliable connection in standard applications

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: 1 in
  • Product Material: Grade 5 Steel
  • Product Size: 1/4"-20 x 1
  • Product Type: Hex Cap Bolt
  • Thread Size: 20
  • Thread Type: Coarse

Professional Applications

  • Electrical Panel and Enclosure Assembly
  • Industrial Equipment Mounting
  • Structural Steel Connections
  • Machinery Component Fastening
  • Commercial Building Systems
  • Manufacturing Equipment Installation
  • Professional Maintenance and Repair

Why Choose Minerallac Quality?

Minerallac hex head cap screws provide dependable fastening solutions with Grade 5 steel construction and zinc plated finish for long-lasting performance. The precision manufacturing and quality materials ensure reliable connections in professional electrical and industrial applications where secure fastening is critical.

Manufacturer Resources

Product Specs

Head Color:
Silver
Head Height:
May-32
Head Type:
Hex Head
Head Width:
16-Jul
Product Finish:
Zinc Plated
Product Length:
1 in
Product Material:
Grade 5 Steel
Product Size:
1/4"-20 x 1
Product Type:
Hex Bolt
Thread Size:
20
Thread Type:
Coarse
Department:
Electrical
Product Subgroup:
Hex Bolts & Nuts
Product Group:
Hangers, Supports & Fasteners

Minerallac 55017J – Frequently Asked Questions

1) What size and thread does the Minerallac 55017J hex cap screw have?
It's a 1/4-20 x 1 inch hex head cap screw, meaning a 1/4 inch diameter shank with 20 threads per inch (UNC coarse) and a 1 inch length under the head. That's the standard coarse pitch for 1/4 inch bolts, so it mates with any standard 1/4-20 nut, coupling, or tapped hole.
2) What does Grade 5 mean on a hex cap screw, and how can I verify it on the part?
Grade 5 is medium carbon steel that has been quenched and tempered, so it carries meaningfully higher tensile strength than a plain Grade 2 bolt. Minerallac marks these with three radial hash marks on the hex head, which is the standard Grade 5 head marking, so an inspector can confirm the grade without a test report.
3) Is this bolt threaded all the way to the head or does it have a shoulder?
Fully threaded, with no unthreaded shank. On a 1 inch length that means you can clamp thin material, strut, or sheet steel panels and still get thread engagement all the way through the nut. If your application needs a plain shoulder bearing in a hole (shear-loaded structural bolting through clearance holes), a partially threaded bolt is the better choice.
4) Can I use zinc plated Grade 5 bolts outdoors or in a damp mechanical room?
The zinc plating gives corrosion resistance suitable for general indoor and protected exterior use, like panel and enclosure assembly, equipment mounting, and mechanical room work. For continuous wet exposure, coastal salt air, or direct ground contact, hot dip galvanized or stainless fasteners hold up longer than electroplated zinc.
5) How many bolts come in the Minerallac 55017J pack?
They ship 100 to a jar under model 55017J, so it's a single stock item for an MRO cart or a truck bin rather than a loose-count bin pull. Nuts and washers are not included, so order 1/4-20 hex nuts and 1/4 inch washers separately if the connection needs them.
6) Will these Grade 5 bolts work for mounting equipment inside an electrical panel?
That's one of their intended uses. The 1/4-20 size with a silver zinc plated hex head is standard for electrical panel and enclosure assembly, industrial equipment mounting, and machinery component fastening, and the Grade 5 steel gives the tensile capacity for suspended or vibrating loads where a Grade 2 bolt would be marginal.
7) What size wrench or socket do I need for a 1/4-20 hex cap screw?
A standard hex head on a 1/4-20 cap screw takes a 7/16 inch wrench or socket. The hex head also means you can run them with a nut driver or impact socket rather than fighting a driver bit, which is why they're common for enclosure and strut work.
How fast can I get the Minerallac 55017J 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 55017J come with a warranty?
Absolutely. The Minerallac 55017J 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 55017J?
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 55017J from ZenSupply?
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