Gibraltar 41401G Blind Tapped T-slot Nut 1/4-20

Product Description

The GIBRALTAR 41401G is a blind tapped T-slot nut designed to anchor bolts and fasteners within T-slot tracks on machine tables, workholding fixtures, and structural framing systems. It accepts a 1/4-20 right-hand thread and fits a 5/16-inch slot width. The base measures 9/16 inches wide by 3/16 inches tall, and the overall length is 9/16 inches with an overall height of 1/4 inch. Manufactured from 1018 steel with a black oxide finish, this nut provides corrosion resistance and a clean appearance in light-duty industrial and fabrication applications. Machinists, millwrights, and fixture builders typically install this hardware.

This T-slot nut is suited for use with 8 mm T-slot table tracks, which are common on milling machines, drill press tables, welding fixtures, and modular workholding systems. The blind tap design closes off one end of the threaded hole, preventing debris from passing through and maintaining thread engagement integrity in through-slot applications. It is sold individually and is appropriate for both production and maintenance-repair-operations environments where precise, secure clamping or anchoring is required.

Key Features

• Blind tapped design keeps threads clear of debris in open-slot applications
• 1/4-20 right-hand thread for compatibility with standard inch-series fasteners
• Fits 5/16-inch (0.3125-inch) slot width and 8 mm T-slot table tracks
• 1018 steel construction with black oxide finish for corrosion resistance
• Compact base profile: 9/16 inches wide by 3/16 inches tall

Compatibility

Designed for use in 8 mm T-slot machine table tracks and fixtures requiring a 1/4-20 blind tapped nut with a 5/16-inch slot width.

Installation Notes

Installation is performed by machinists or fixture builders and requires no special tooling beyond a standard 1/4-20 bolt or stud. Slide the nut into the T-slot track, position it under the desired clamping point, and engage the mating fastener by hand before tightening. Ensure the slot width of the table or fixture matches the 5/16-inch specification before installation to avoid binding or improper seating.