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The HILLMAN BUILDERS HARDWARE 321900 is a galvanized hook-and-eye turnbuckle used to tension cables, wire rope, and rods in structural and rigging applications. Measuring 0.5 inches in diameter with a 6-inch body length, this turnbuckle provides adjustable tension for a range of load-bearing tasks. The galvanized finish delivers corrosion resistance suited to outdoor and marine-adjacent environments. Carpenters, general contractors, riggers, and maintenance professionals regularly specify this hardware for fencing, bracing, and cable tensioning work.
This turnbuckle is appropriate for residential and light commercial applications where controlled tensioning of wire, rod, or cable is required. Typical uses include fence wire tensioning, structural bracing, awning and shade structure rigging, and agricultural tie-down systems. The hook-and-eye configuration allows fast attachment to eye bolts, shackles, and anchor points without additional hardware in most standard setups.
Designed as a standard hook-and-eye turnbuckle replacement or new-installation fitting compatible with 0.5-inch diameter cable, wire rope, and threaded rod tensioning assemblies.
Installation is typically performed by general contractors, riggers, or maintenance professionals familiar with mechanical tensioning hardware. Before tensioning, confirm that anchor points and end fittings are rated for the intended load. Use a wrench on the turnbuckle body to adjust tension evenly, and secure the body with a locking wire or jam nut after reaching the desired tension to prevent loosening under vibration or dynamic load. Follow applicable structural and rigging codes for your jurisdiction when using turnbuckles in load-bearing applications.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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