Description
When you’re dealing with heavy three-point implements and lift arm connections, you need nuts that won’t back off when the going gets tough. If you’ve ever had a lift arm pin work loose or break while you’re in the middle of field work, you know how frustrating it can be. This heavy-duty 1″ UNF nut is built specifically for link arm pin applications where vibration, stress loads, and constant movement try their best to shake things loose.
What You’re Getting
- Heavy zinc plating resists corrosion even in muddy, wet field conditions
- 1″ UNF fine thread design grips tighter and holds better than coarse threads
- Sold in packs of 10 so you’ve got spares for future repairs or multiple implements
- Pairs perfectly with QTP-1067 flat washers for proper load distribution
- Built to handle the stress and vibration that comes with heavy implement work
Built for Real Farm Work
This nut fits any tractor with Category 1 3-point hitch lift arms – those are your smaller to mid-size tractors typically used for hay work, livestock operations, food plots, and general farm maintenance. Whether you’re hooking up a bush hog, box blade, disc harrow, or cultivator, this is the connection point that takes all the stress when you lift your implement or back up with a load. The fine UNF thread specification provides superior holding power compared to standard coarse threads.
Made to Last
The heavy zinc plating isn’t just for looks – it’s your protection against the rust and corrosion that can seize nuts permanently to their pins. The forged construction means this pin can handle the forces your hydraulic system puts on it without bending or breaking. The shoulder design distributes the load properly, and the fine threads won’t strip out like cheaper pins do. This nut matches that same quality standard.
Installation Notes
Installation is straightforward – just thread it into your lift arm ball end until the shoulder seats properly. Keep a little grease on the threads so it goes in and out easily when you’re changing implements. The pack of 10 means you can keep spares in your toolbox – there’s nothing worse than being ready to hook up an implement and finding a missing or damaged nut.


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