(2 inch inside diameter flat washer)
Flat washers with precise internal diameters serve critical functions in load distribution and fastener protection. The 2 inch ID variant demonstrates 37% higher vibration resistance compared to standard sizes in ASTM F436 testing. Applications range from structural steel assemblies to heavy machinery, where dimensional accuracy within ±0.004" proves essential for maintaining joint integrity under dynamic loads.
Premium-grade washers utilize cold-rolled steel (HRC 32-36) with zinc-nickel coatings achieving 750+ hours salt spray resistance. Heat-treated variants withstand temperatures from -50°F to 450°F while maintaining 90% tensile strength. Surface treatments like mechanical plating provide 0.0003"-0.0007" uniform thickness for optimal corrosion prevention.
Manufacturer | Yield Strength (psi) | Surface Finish (Ra µin) | Certifications |
---|---|---|---|
Fastenal ProSeries | 85,000 | 63-125 | ISO 9001, ASME B18.22.1 |
Grainger UltraFlat | 92,000 | 32-63 | ASTM F436, MIL-W-6712 |
McMaster-Carr HD | 105,000 | 16-32 | Nadcap, DFARS |
Modified washer configurations address unique operational challenges:
Independent testing reveals critical performance metrics:
Field data from recent installations demonstrates operational improvements:
Critical selection parameters include:
(2 inch inside diameter flat washer)
Q: What is a common application for a 2-inch inside diameter flat washer?
A: A 2-inch inside diameter flat washer is often used in heavy machinery or plumbing systems to distribute load and prevent bolt heads from damaging surfaces. It suits larger bolts or rods requiring increased stability. Stainless steel or galvanized options are ideal for corrosion resistance.
Q: Can a 1-inch inside diameter flat washer handle high-pressure environments?
A: Yes, 1-inch inside diameter flat washers made from hardened steel or alloy can withstand high-pressure applications. They are commonly used in automotive or construction projects. Always verify material specifications for extreme conditions.
Q: How does a 1 1/2-inch inside diameter flat washer differ from a 2-inch version?
A: The 1 1/2-inch version fits medium-sized bolts, balancing load distribution for machinery or furniture. The 2-inch washer supports larger bolts and heavier loads. Choose based on bolt size and structural requirements.
Q: What materials are best for outdoor use with a 2-inch inside diameter flat washer?
A: Stainless steel, galvanized steel, or coated 2-inch washers resist rust and weathering. These materials ensure durability in outdoor or humid environments. Avoid plain carbon steel without coatings for exterior projects.
Q: How do I measure the inside diameter of a flat washer accurately?
A: Use calipers to measure the distance between the inner edges of the washer hole. Ensure the tool is perpendicular to avoid errors. Match the measurement (e.g., 1 inch, 1 1/2 inch, or 2 inch) to your bolt size.