Metallics USS Flat Washer 1/2"...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.75
Metallics Washers 1/2 USS Flat St-zn

Metallics USS Flat Washer 1/2" Steel Zinc Chromate Heavy Duty 100-Pack Jar

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Model: JWW83
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$51.75
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Metallics Industries USS Flat Washer 1/2" Steel Zinc Chromate Heavy Duty

Professional Heavy Duty Washer Solution

The Metallics Industries USS Flat Washer 1/2" delivers exceptional performance and reliability for electrical, plumbing, heating and air conditioning applications. This steel zinc chromate washer provides dependable fastening solutions designed for professional contractors, electricians, and industrial technicians, offering the proven quality and precision engineering that professionals trust from a leading manufacturer of electrical hardware and industrial fasteners.

Professional Features & Benefits

Heavy Duty Construction

  • USS Flat Wrought Washer Design - Engineered to USS (United States Standard) specifications for consistent performance and reliable load distribution in demanding applications
  • Steel Zinc Construction with Zinc Chromate Finish - Superior corrosion resistance and durability for long-lasting performance in electrical and industrial environments
  • Heavy Duty Rating - Built to withstand high-stress applications and provide reliable fastening support for critical installations
  • 1/2" Bolt Size Compatibility - Precisely manufactured to fit 1/2" bolts with optimal clearance and load distribution characteristics

Professional Installation Benefits

  • ANSI Compliance - Meets American National Standards Institute specifications for professional electrical and industrial applications
  • Convenient 100-Pack Jar - Professional packaging provides easy access and secure storage for job site efficiency
  • Multi-Industry Application - Designed specifically for electrical, plumbing, heating and air conditioning industries with proven field performance

Technical Specifications

Material: Steel Zinc, Finish: Zinc Chromate, Washer Type: USS Flat Wrought Washer, Fits Bolt Size: 1/2", Inside Diameter: 9/16", Outside Diameter: 1-3/8", Package Dimensions: 3.5" L x 3.5" W x 5.75" H, Weight: 3.47 lbs, Pack Type: Jar (100 pieces), ANSI Compliant, Country of Origin: Multiple

Installation & Usage

  1. Select appropriate washer size to match 1/2" bolt diameter for proper fit and load distribution
  2. Position washer between bolt head or nut and the surface material to distribute load evenly
  3. Ensure washer lies flat against the surface with no gaps or tilting that could compromise performance
  4. Tighten fastener to specified torque requirements while monitoring washer compression and alignment
  5. Verify proper seating and load distribution across the washer surface for optimal fastening integrity
  6. Inspect installation for proper washer positioning and secure fastener engagement

Professional Applications

Ideal for:

  • Electrical Panel Installation - Secure mounting of electrical panels, junction boxes, and control cabinets with reliable load distribution
  • HVAC System Assembly - Professional fastening for heating, ventilation, and air conditioning equipment mounting and ductwork connections
  • Plumbing Applications - Reliable fastening support for pipe brackets, fixture mounting, and plumbing system installations
  • Industrial Equipment Mounting - Heavy duty fastening for machinery, equipment bases, and industrial assembly applications
  • Construction Fastening - Structural connections, framework assembly, and building component installations requiring load distribution
  • Electrical Conduit Systems - Secure mounting of conduit supports, electrical boxes, and raceway systems
  • Metal Fabrication - Professional assembly of metal structures, brackets, and fabricated components
  • Maintenance and Repair - Replacement washers for equipment maintenance, facility repairs, and system upgrades

Steel Zinc Chromate Advantage

The steel zinc construction with zinc chromate finish provides exceptional corrosion resistance and durability for demanding electrical, plumbing, and HVAC applications. This professional-grade finish offers superior protection against moisture, chemicals, and environmental factors while maintaining the structural integrity required for heavy duty fastening applications in industrial and commercial environments.

Why Choose Metallics Industries Quality?

Metallics Industries demonstrates unwavering commitment to precision manufacturing and quality control excellence in electrical hardware and industrial fasteners. Our USS flat washers feature superior steel zinc materials with zinc chromate finishes, delivering reliable performance that contractors, electricians, and industrial professionals trust. Through comprehensive product testing, ANSI compliance, and specialized engineering for electrical, plumbing, and HVAC applications, Metallics Industries provides dependable fastening solutions that meet the demanding requirements of professional installations and industrial assembly applications.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Ansi:
ANSI
Country Of Origin:
MUL
Division:
Electrical H1
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Fits Bolt Size:
2-Jan IN
Inside Diameter:
16-Sep IN
Outside Diameter:
1/3/2008 IN
Pack Type:
Jar
Product Family:
Electrical Supplies
Sub Division:
Electrical-E H2
Washer Type:
USS Flat Wrought Washer
Product Type:
Washers
Product Group:
Fasteners
Department:
Electrical
Product Subgroup:
Washers
Product Finish:
Zinc Chromate
Product Length:
3.5 in
Product Height:
5.75 in
Product Material:
Steel Zinc
Product Weight:
3.47 lbs
Product Width:
3.5 in

Metallics JWW83 – Frequently Asked Questions

1) Will a 1/2 inch USS flat washer fit over a 1/2 inch bolt or threaded rod?
Yes. The Metallics JWW83 USS flat washer is sized for 1/2 inch bolts, with a 9/16 inch inside diameter that gives clearance over 1/2 inch threaded rod or bolt shank without binding. Outside diameter is 1-3/8 inches, so it spreads the load well past the nut face.
2) Can I use a 1/2 inch USS flat washer with 1/2 inch all-thread for hanging conduit and pipe?
Yes. The 9/16 inch bore clears 1/2 inch rod, and the 1-3/8 inch outside diameter gives the nut a wide bearing surface against a strut channel, clevis, or unistrut fitting. Metallics lists conduit supports, electrical boxes, and raceway systems among the uses for these washers.
3) What is the difference between a USS flat washer and an SAE flat washer in 1/2 inch?
USS is the wider, heavier pattern. The Metallics JWW83 is a USS flat wrought washer with a 1-3/8 inch outside diameter and 9/16 inch bore, which is larger across than the SAE washer of the same bolt size. Use USS when you are bearing on sheet metal, strut, wood, or anything soft and need the load spread over more area. SAE is the choice when the bearing surface is tight to the bolt head, such as inside a machined counterbore.
4) Is zinc chromate plating okay for washers used in damp mechanical rooms or on HVAC equipment?
The zinc chromate finish on these steel washers is a corrosion-resistant coating intended for indoor electrical, plumbing, and HVAC work, which is the field application Metallics lists for them. It handles the humidity of a mechanical room, equipment mounting, and conduit support. For direct exposed exterior or wet, corrosive service, a hot dip galvanized or stainless washer is the better call.
5) How many 1/2 inch USS washers come in the Metallics JWW83 jar?
One hundred pieces, packed in a jar rather than a loose bag, so it sits on a truck shelf or in a parts bin without spilling. Total package weight is 3.47 lbs, which works out to roughly half an ounce per washer. That count suits a panel-mount or strut-hanging job where you are burning washers two at a time.
6) Do these Metallics washers meet ANSI specifications?
Yes, the JWW83 is an ANSI compliant USS flat wrought washer. That matters on spec'd electrical and industrial work where the submittal calls for a standard-pattern washer rather than a generic stamped one.
7) Does a flat washer alone keep a bolted connection from loosening under vibration?
No. A flat washer like the JWW83 distributes load and protects the bearing surface, it does not provide any locking action. On vibrating equipment, pair it with a lock washer, a nylon insert lock nut, or thread locker, with the flat washer against the material surface.
8) How much shelf space does the 100-count jar of 1/2 inch washers take up?
The jar measures 3.5 x 3.5 x 5.75 inches and weighs 3.47 lbs, so it fits a standard van bin or a shop shelf alongside other Metallics fastener jars.
How fast can I get the Metallics JWW83 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 Metallics JWW83 come with a warranty?
Absolutely. The Metallics JWW83 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 Metallics JWW83?
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 Metallics JWW83 from ZenSupply?
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