Heavy Hitter Rock Solid Castle Nuts 3/8 24 Inch Fine Thread Grade 2 Zinc Plated Low Carbon Steel Round Slotted Hardware Fastener Pack Of Fifty Built Like A Tank For Every Job No Sweat Setup Guaranteed Top Shelf Quality

Pack of 50 Grade 2 Castle Nuts 3/8 24 UNF Fine Thread
✔️ High strength low carbon steel castle nuts 3/8 24 fine thread

Pack of 50 heavy duty castle nuts are precision machined fasteners designed to secure machinery, automotive frames, and agricultural equipment where reliable pin retention is required. These rounded slotted hex nuts work seamlessly with cotter pins to lock bolts in place on trailers, steering linkages, and hydraulic setups without slipping under vibration.

✅ Thread size 3/8 inch 24 UNF right hand ✅ Width across flats measures 9/16 inch ✅ Overall height stands at 21/64 inch ✅ Pin hole accommodates up to 7/64 inch diameter ✅ Meets ASTM 563 standards for structural hardware ✅ Protective zinc coating resists rust and corrosion

💡 How do precision cut castle nuts prevent bolt loosening on heavy trailers?

These threaded fasteners lock securely so your rig stays solid out on the job site.

- Precision chamfered edges allow quick cotter pin alignment on axle joints - Coarse pitch threads bite hard into steel studs under heavy impact loads - Salt spray resistance makes them handy for tractors exposed to wet fields ✝️