[9400 BULK] Flat Washers SAE Extra Heavy Thru Hardened Steel Zinc Yellow 1/4

Flat Washers SAE Extra Heavy Thru Hardened Steel Zinc Yellow 1/4 — Built for demanding assemblies where strength, durability, and corrosion resistance are essential. This SAE-grade flat washer features an extra-heavy thickness and thru-hardened steel for reliable performance under high load and vibration.

• Material: Thru Hardened Steel for uniform hardness and extended service life
• Finish: Zinc Yellow coating for corrosion resistance and high visibility
• Size: 1/4 in (SAE standard) — nominal inner diameter tailored for common hardware
• Type: Extra Heavy thickness to maximize load distribution and prevent pull-through
• Standards: Meets SAE specifications for dependable interchange and performance

Designed for use in automotive, industrial, and heavy equipment applications, these flat washers distribute clamping force over a larger area, reducing the risk of damage to bolts, nuts, and mating surfaces. The thru-hardening process ensures hardness throughout the washer, while the yellow zinc finish delivers corrosion protection and easy identification in crowded or high-dust environments.

Key benefits

• Enhanced load distribution reduces deformation and thread wear
• Excellent wear resistance under high torque and vibration
• Corrosion protection extends service life in harsh conditions
• Easy to identify in industrial settings due to distinct yellow zinc coating

Use with compatible bolts and nuts to improve fastening reliability in machinery, automotive assemblies, and structural hardware. Ensure seating is flat and clean for optimal performance.