Gibraltar TN-0SS-G Blind Tapped T-slot Nut 5/16-18

Product Description

The GIBRALTAR TN-0SS-G is a blind tapped T-slot nut designed for secure fastening in T-slot channel systems. The blind tap configuration closes off one end of the threaded hole, preventing debris ingress and maintaining a clean profile inside the slot. Machined from 304 stainless steel with a black oxide finish, this nut offers solid corrosion resistance and surface hardness for demanding shop and industrial environments. The right-hand 5/16-18 thread accepts standard 5/16-18 bolts and studs. With a base width of 0.625 inches and a slot width of 0.375 inches, it fits standard T-slot extrusions and fixture tables used in machining and fabrication setups.

This T-slot nut is suited for use on machine tool tables, welding fixtures, jigs, and modular workholding systems that use inch-dimension T-slot profiles. Typical applications include milling machine tables, surface plates with T-slots, and modular fixturing frames. It is installed by machinists, toolmakers, and fabrication technicians who require a clean-end tapped nut that stays flush within the slot channel without protruding through the base. The 304 stainless steel construction makes it appropriate for applications where mild chemical exposure or moisture is a factor.

Key Features

• Blind tapped 5/16-18 right-hand thread prevents through-hole debris accumulation
• 304 stainless steel construction for corrosion resistance in industrial environments
• Black oxide finish provides additional surface protection
• Slot width of 0.375 inches fits standard inch-dimension T-slot channels
• Base dimensions of 0.625 inches wide by 0.219 inches tall for positive channel engagement
• Overall length of 0.75 inches with an overall height of 0.406 inches

Compatibility

Designed as an OEM-style replacement or direct-fit component for inch-dimension T-slot channel systems accepting a 0.375-inch slot width and 5/16-18 blind tapped fasteners.

Installation Notes

Installation is performed by machinists or toolmakers. Slide the nut into the T-slot channel before positioning the workpiece or fixture component, then thread the mating bolt from above. Do not exceed the torque rating of the mating fastener or channel material. Inspect threads for contamination before engagement to avoid galling, which is a particular concern with stainless steel fasteners.