Buyers Products 7619 – Grade 5 SAE Flat Washer with Yellow Zinc Finish (1-1/2 Inch)

Uncompromising Strength for Demanding Applications

When your project demands unwavering strength and reliability, standard hardware simply won’t suffice. The Buyers Products 7619 Grade 5 SAE Flat Washer is engineered specifically for high-stress fastening applications where load distribution and vibration resistance are critical. This 1-1/2 inch washer is not just a simple spacer; it’s a crucial component designed to protect surfaces, prevent bolt pull-through, and ensure the long-term integrity of your most important connections. Built by a leader in the work truck industry, Buyers Products, this washer delivers the professional-grade performance required for heavy-duty machinery, automotive assemblies, and structural applications.

Superior Construction: Grade 5 Steel and Yellow Zinc Finish

The exceptional performance of the 7619 washer begins with its core material: Grade 5 hardened steel. Unlike lower-grade or mild steel washers, Grade 5 steel is a medium carbon alloy that has been heat-treated, quenched, and tempered to achieve a significant increase in tensile strength and hardness. This process makes it capable of withstanding extreme clamping forces and shear stress without deforming or failing. To protect this robust steel core, the washer is coated with a high-quality yellow zinc chromate finish. This plating provides a formidable barrier against moisture, salt, and other corrosive elements, significantly outperforming standard clear zinc finishes and extending the service life of both the washer and the entire bolted joint. The distinct yellow/gold color also serves as a quick visual indicator of its superior corrosion resistance and grade.

Precision Engineering: The SAE Standard Advantage

Designed to the strict specifications of the Society of Automotive Engineers (SAE) standard, the Buyers Products 7619 washer features a smaller outside diameter and a tighter fit around the bolt shank compared to common USS (United States Standard) washers. This precision design is ideal for applications where space is limited or where a more concentrated load-bearing surface is required directly under the bolt head or nut. Its robust construction makes it an indispensable component in a wide range of demanding environments. It is perfectly suited for assembling heavy equipment, securing components on truck and trailer frames, automotive suspension work, and in any industrial or structural application where high-strength, vibration-resistant fastening is a necessity. For more general hardware needs, you can explore our Uncategorized section.

• Part Number: 7619
• Material: Heat-Treated Medium Carbon Steel
• Grade: Grade 5
• Finish: Yellow Zinc Chromate for Superior Corrosion Resistance
• Standard: SAE (Society of Automotive Engineers)
• Nominal Bolt Size: 1-1/2 Inch
• Inside Diameter (ID): Approximately 1.563″
• Outside Diameter (OD): Approximately 2.750″
• Thickness: Approximately 0.134″
• High Strength: Engineered to withstand high clamping loads and prevent deformation.
• Optimal Load Distribution: Spreads the pressure of a nut or bolt head evenly across the material surface, preventing damage.
• Precision Fit: SAE dimensions provide a tighter fit for applications requiring precise alignment and limited space.
• Vibration Resistance: Helps maintain bolt tension in high-vibration environments.
• Applications: Ideal for heavy machinery, automotive, truck and trailer manufacturing, and structural steel fastening.