Description

When you’re putting together equipment or making repairs, there’s nothing more frustrating than a bolt that strips out or rusts away just when you need it most. This heavy-duty carriage bolt gives you the strength and durability to handle whatever your tractor, implement, or shop project throws at it. The square shoulder locks into square holes to prevent spinning, making it perfect for through-bolting applications where you can’t get a wrench on both sides.

What You’re Getting

Grade 5 construction that’s about 25% stronger than regular hardware store bolts
Zinc coating protects against rust and corrosion, even with road salt exposure
Square shoulder design prevents spinning in square holes and slots
4-1/2 inch length handles thick materials and multiple layers
UNC threads provide reliable holding power in standard applications

Built for Real Farm Work

This bolt size is perfect for medium to heavy-duty connections on tractors, implements, and shop-built equipment. You’ll find these holding together everything from three-point hitch components to loader mounts, cultivator frames, and structural connections that need to stay put under vibration and load.

Made to Last

The zinc coating helps these bolts stand up to moisture and road salt, so they won’t rust out on you in a season or two. Grade 5 steel offers the sweet spot between strength and cost – strong enough for serious work but won’t break the budget when you need several.

Good to Know

Always use a flat washer under the nut to distribute the load properly. If you’re replacing rusted bolts, clean out the threads with a tap if needed. A little anti-seize compound on the threads makes future removal much easier, especially if the connection might see heat or road salt.