When you need fasteners that won't let you down on the road, these Grade 8 hex washer head flange bolts deliver the heavy-duty performance your rig demands. Built to handle the constant vibration and stress of highway hauling.
Professional-Grade Fastening Power
- Grade 8 Steel Construction: Maximum tensile strength rated at 150,000 PSI - engineered for critical truck applications where failure isn't an option
- Integrated Washer Design: Built-in flange distributes load evenly and eliminates the need for separate washers, saving installation time
- Black Phosphate Coating: Superior corrosion resistance stands up to road salt, moisture, and harsh weather conditions
Technical Specifications
Thread pitch: 5/8"-11 with 3-1/2" length provides secure engagement for heavy-duty mounting applications. The hex washer head design offers excellent grip for impact tools while the flange prevents over-tightening damage to mounting surfaces.
Perfect for securing brackets, bumpers, mud flaps, and other critical truck components. These high-strength bolts meet or exceed SAE J429 Grade 8 specifications, giving you the confidence that comes with professional-grade hardware that's built to last mile after mile.
