Minerallac #6 Flat Cut Washers...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.07
$7.14
Minerallac #6 Flat Cut Washers - Zinc Plated Steel with 0.39" Outside Diameter, 100 Pack

Minerallac #6 Flat Cut Washers - Zinc Plated Steel with 0.39" Outside Diameter, 100 Pack

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Model: 40305J

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

$50.07
$7.14
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Minerallac #6 Flat Cut Washers - Zinc Plated Steel with 0.39" Outside Diameter

Professional Grade Flat Cut Washers for Improved Stress Distribution

Minerallac #6 Flat Cut Washers deliver reliable fastening performance with zinc plated steel construction. These professional-grade washers are designed for assembly around bolts or screws, providing improved stress distribution and spanning large clearance holes between the bearing surface of the fastener and the attached part.

Professional Features & Benefits

  • #6 Bolt Size Compatibility: Precisely engineered for #6 fasteners ensuring proper fit and optimal performance in assembly applications.
  • Zinc Plated Finish: Provides corrosion resistance and durability for long-lasting performance in various environmental conditions.
  • Steel Construction: Offers superior strength and reliability for demanding fastening applications requiring consistent stress distribution.
  • 0.39" Outside Diameter: Optimal size for effective load distribution and spanning clearance holes in professional installations.
  • 0.065" Thickness: Engineered thickness provides proper bearing surface contact while maintaining compact profile.
  • 0.164" Inside Diameter: Precise internal dimension ensures proper clearance and fit around #6 fasteners.

Technical Specifications

  • Country Of Origin: China
  • Fits Bolt Sizes: #6
  • Inside Diameter: 0.164
  • Outside Diameter: 0.39
  • Product Color: Silver
  • Product Finish: Zinc Plated
  • Product Material: Steel
  • Product Type: Flat Cut Washer
  • Thickness: 0.065

Professional Applications

  • Electrical Equipment Assembly
  • HVAC System Installation
  • Industrial Machinery Fastening
  • Commercial Construction Projects
  • Maintenance and Repair Operations
  • Professional Electrical Installations
  • Equipment Mounting Applications

Why Choose Minerallac Quality?

Minerallac flat cut washers provide dependable fastening solutions with zinc plated steel construction for enhanced durability and corrosion resistance. The precision-engineered dimensions and professional-grade materials ensure consistent performance in demanding applications where reliable stress distribution is essential.

Manufacturer Resources

Product Specs

Fits Bolt Sizes:
#6
Inside Diameter:
0.164
Outside Diameter:
0.39
Product Color:
Silver
Product Finish:
Zinc Plated
Product Material:
Steel
Product Type:
Washer
Thickness:
0.065
Department:
Electrical
Product Subgroup:
Electrical Fasteners
Product Group:
Hangers, Supports & Fasteners

Minerallac 40305J – Frequently Asked Questions

1) Will a Minerallac #6 flat washer clear a #6 screw or machine screw?
Yes. The Minerallac 40305J flat cut washer has a 0.164 inch inside diameter, which is sized to slip over a #6 fastener, and the catalog lists it as fitting bolt size #6. A #6 screw major diameter is about 0.138 inch, so you get clearance without the washer rattling loose on the shank.
2) Are these washers OK in a damp location or outdoor electrical enclosure?
Zinc plated steel. The plating gives ordinary corrosion resistance for indoor panels, junction boxes, equipment mounting and general MRO work, and it holds up in occasional damp. For continuous wet exposure, coastal air, or a washdown environment, go with stainless rather than zinc plated steel.
3) What is the difference between a flat cut washer and a fender or lock washer for #6 hardware?
A flat cut washer like the Minerallac #6 is a plain punched steel ring that distributes the clamp load of the screw head and protects the surface finish. It does nothing to resist loosening, so if the assembly sees vibration you still need a split lock washer or a nylon insert nut underneath. A fender washer is the same idea with a far larger OD for thin sheet or oversize holes, where this 0.39 inch OD would pull through.
4) How are Minerallac #6 flat washers packaged for a service truck or shop bin?
They come 100 to a jar, model 40305J. The jar format keeps the #6 size separated from the rest of your washer stock, which is the practical reason electricians and maintenance techs buy them this way rather than loose by the pound.
5) Will these washers match the look of existing zinc hardware on a panel or device plate?
Finish is silver zinc plated, so they blend with standard zinc plated screws and strut hardware already in most panels and enclosures. They are not a decorative finish, so do not expect them to match chrome or brushed nickel trim on the public side of a fixture.
How fast can I get the Minerallac 40305J 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 40305J come with a warranty?
Absolutely. The Minerallac 40305J 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 40305J?
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 40305J 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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