1/2 Inch x 5 Inch Grade 8 Hex Bolt with Zinc Finish

Description

When you’re tackling heavy-duty repairs or building custom equipment that needs to stay put, this Grade 8 hex bolt gives you the serious strength you need. If you’ve been getting by with hardware store bolts that keep loosening up or breaking under load, you’ll appreciate what real agricultural-grade fasteners can do. This 5-inch length is perfect for bolting through thick steel assemblies or when you need extra thread engagement for a rock-solid connection.

What You’re Getting

• Grade 8 strength—about 50% stronger than Grade 5 bolts and built for maximum stress applications
• Zinc plating fights off rust and corrosion, even when exposed to moisture and chemicals
• UNC coarse threads grab tight and resist backing out under vibration
• 5-inch length handles thick assemblies and gives you plenty of thread to work with
• 1/2-inch diameter provides excellent holding power without being oversized

Built for Real Farm Work

This bolt size is ideal for heavy-duty connections on implements, three-point attachments, loader brackets, and custom shop-built equipment. The 5-inch length works great when you’re mounting thick brackets, sandwiching multiple plates together, or need to reach through frame rails. Grade 8 strength means it won’t let you down when you’re pulling stumps, working tough ground, or handling heavy loads.

Made to Last

Grade 8 bolts are heat-treated to handle extreme stress—they’re the go-to choice when failure isn’t an option. The zinc coating adds extra protection against the elements, so these bolts keep their strength even after years of exposure to fertilizer, diesel fuel, and weather. They cost a bit more than Grade 5, but when you need maximum strength, it’s worth every penny.

Good to Know

These bolts need a 3/4-inch wrench or socket. Always use a flat washer under both the head and nut to distribute the load properly—especially important with Grade 8 bolts since they can generate higher clamping forces. A drop of thread locker helps prevent loosening in high-vibration applications.