Gibraltar SN-6-G Swivel Hex Nut 1/2-13 Unc Steel

Product Description

The GIBRALTAR SN-6-G is a steel swivel hex nut designed for 1/2-13 UNC threaded applications requiring a pivoting pad contact point. The swivel pad allows the nut to apply clamping force at an angle without marring or scoring the workpiece surface, making it a preferred fastener in fixturing, workholding, and jig-and-fixture setups. Built from steel with a black oxide finish, this nut delivers corrosion resistance in moderate environments while maintaining dimensional stability under load. It measures 5/8 inches wide across the flats, 21/32 inches in overall height, and 3/8 inches in thread depth, with an 11/16-inch swivel pad diameter. Machinists, toolmakers, and industrial maintenance technicians are the primary installers.

The SN-6-G suits inch-system applications in manufacturing, machine shops, and industrial maintenance environments. It is used in clamping assemblies, toggle fixtures, vises, and jig plates where the workpiece surface must be protected from direct fastener contact. The 1/2-13 UNC thread size is one of the most common coarse-thread standards in North American industrial use, making this nut a straightforward drop-in for a wide range of fixturing hardware configurations.

Key Features

• Swivel pad design prevents surface marring during clamping
• 1/2-13 UNC coarse thread for broad compatibility with standard inch-system hardware
• Steel construction provides strength and durability under mechanical load
• Black oxide finish adds corrosion resistance in moderate service environments
• 11/16-inch pad diameter distributes contact force across a wider area
• Compact profile at 21/32 inches overall height for use in tight clearance setups

Compatibility

Designed as a standard inch-system swivel hex nut for use with 1/2-13 UNC threaded rods, studs, and bolts in fixturing and workholding assemblies.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a standard open-end or combination wrench sized for a 5/8-inch hex flat. Ensure the mating threaded component is clean and free of debris before engagement. Do not exceed the torque capacity appropriate for the thread size and material grade. The swivel pad should seat flush and freely rotate against the workpiece before final tightening.