When your projects demand reliable fastening solutions, flat washers, wave washers, and structural washers from G-Fast provide the perfect foundation. As a leading US manufacturer and distributor, we supply high-grade stainless steel washers and specialized shim washers to contractors, manufacturers, and industrial clients across New York, New Jersey, Chicago, and nationwide. Our American-made products meet the toughest industry standards while offering competitive pricing and rapid delivery.

Why Proper Washer Selection Matters

Washers serve critical functions in mechanical assemblies:

  • Load Distribution – Flat washers prevent surface damage under bolt heads
  • Vibration Resistance – Wave washers maintain tension in dynamic applications
  • Precision Spacing – Shim washers enable exact component alignment
  • Corrosion Protection – Stainless steel washers withstand harsh environments
  • Structural Integrity – Structural washers meet building code requirements

Fact: Proper washer use can increase joint life by up to 300% in vibration-prone applications (ASTM International).

Our Washer Product Line

1. Flat Washers (SAE & USS)

  • Materials: Carbon steel, stainless steel, brass
  • Sizes: #4 to 1-1/2″ diameters
  • Thickness: 0.5mm to 6mm
  • Standards: ANSI B18.22.1, ASME B18.21.1
  • Applications: General construction, machinery, automotive

2. Wave Washers

  • Types: Single wave, multiple wave
  • Spring Rates: 5N/mm to 50N/mm
  • Materials: 1074 carbon steel, 304 stainless
  • Benefits:
    • Compensates for thermal expansion
    • Prevents loosening from vibration
    • Maintains electrical contact

3. Shim Washers

  • Precision Thicknesses: 0.05mm to 3mm
  • Material Options: Stainless steel, brass, phosphor bronze
  • Tolerance: ±0.005mm for high-precision applications
  • Uses: Bearing pre-load, gear alignment, machinery adjustment

4. Stainless Steel Washers

  • Grades: 304 (18-8) and 316 (marine grade)
  • Finishes: Plain, passivated, electropolished
  • Chemical Resistance: Withstands acids, alkalis, and saltwater
  • Temperature Range: -450°F to 800°F (-268°C to 427°C)

5. Structural Washers

  • ASTM F436 Compliant – Hardened for high-strength bolting
  • Oversized Outer Diameter – 50% larger than standard washers
  • Common Applications:
    • Steel building construction
    • Bridge fabrication
    • Heavy equipment assembly

Industries We Serve Nationwide

Construction & Infrastructure

  • Structural steel framing
  • Concrete formwork
  • Bridge decking

Manufacturing & Machinery

  • Equipment assembly
  • Conveyor systems
  • Hydraulic components

Transportation

  • Truck and trailer manufacturing
  • Railroad components
  • Marine hardware

Energy Sector

  • Wind turbine assembly
  • Oil rig construction
  • Solar panel mounting

Why Choose G-Fast Washers?

✅ American Manufacturing – Made in USA to exacting standards
✅ Same-Day Shipping – Most orders ship within 24 hours
✅ Technical Support – Engineers available for application consulting
✅ Custom Solutions – Special sizes, materials, and plating
✅ Quality Certifications – ISO 9001:2015 compliant

Technical Comparison Table

Washer Type Best For Material Options Standards
Flat Washers General purpose Steel, stainless, brass ANSI B18.22.1
Wave Washers Vibration resistance Spring steel, stainless DIN 137
Shim Washers Precision spacing Brass, bronze, stainless Custom
Structural Washers High-load applications A36 steel, A572 ASTM F436

Frequently Asked Questions

Q: When should I use structural washers vs standard flat washers?

A: Use structural washers with ASTM A325/A490 bolts in building construction where code compliance is required.

Q: What’s the difference between SAE and USS flat washers?

A: USS washers have larger outer diameters (typically 2x bolt size) compared to SAE washers (1.75x bolt size).

Q: Can stainless steel washers be used with galvanized bolts?

A: Yes, but we recommend using dielectric washers or coatings to prevent galvanic corrosion.

Q: Do you offer custom-sized washers?

A: Absolutely – we can manufacture washers to your exact specifications in diameters up to 12″.

Order Your Washers Today

Trust G-Fast for all your washer needs across:

📍 New York
📍 New Jersey
📍 Chicago
📍 Nationwide

📞 Call for Volume Pricing
📧 Email for Custom Quotes
🌐 Browse Our Inventory: https://g-fast.com/products/washers/