Description
When you need to secure a collar, pulley, or gear to a shaft without it working loose, a good set screw is your go-to fastener. This 3/8-inch hex socket set screw gives you the holding power to keep components locked in place, even when they’re spinning under load or dealing with vibration from field work.
What You’re Getting
- Strong hex socket design that won’t strip out like slotted screws
- Zinc and yellow coating resists rust and corrosion in outdoor conditions
- 1-1/2 inch length handles thicker hubs and provides solid engagement
- UNC thread pitch works with standard tapped holes
- Precise fit prevents loosening from vibration and shock loads
Built for Real Farm Work
You’ll find this size set screw holding everything together on tractors, implements, and shop equipment. It’s perfect for securing pulleys on belt drives, locking collars on PTO shafts, or keeping sprockets positioned on chain drives. The 3/8-inch size handles medium-duty applications where smaller screws might work loose.
Made to Last
The zinc and yellow finish isn’t just for looks—it’s protection against the moisture and chemicals that equipment faces every day. The hex socket design gives you a solid grip with an Allen wrench, so you can get proper torque without worrying about the drive stripping out.
Good to Know
Use a 5/16-inch hex key to install this screw. For the best holding power, make sure the threaded hole is deep enough and clean out any debris before installation. A drop of thread locker helps prevent backing out on high-vibration applications.
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