Gibraltar 841410-G T-bolt 1-8 Unc Grade 5 Steel Black Oxide

Product Description

The GIBRALTAR 841410-G is a Grade 5 steel T-bolt designed for high-load fastening applications in industrial, mechanical, and structural assemblies. It features a 1-8 UNC thread with a 4-inch thread length and a 5-inch length under the head, providing substantial clamping reach for fixture plates, machine tables, and T-slot mounting systems. The black oxide finish offers moderate corrosion resistance and reduces light reflection in shop environments. At 1 pound, this is a heavy-duty fastener intended for professional installation by machinists, millwrights, and maintenance technicians working with T-slot rail and channel systems.

This T-bolt is suited for use in T-slot framing, fixture clamping, and machine table applications where a large 1-11/16-inch head width is needed to seat securely within standard T-slot channels. The 11/16-inch head height allows the bolt to slide into the channel slot and rotate to lock in place before torquing. Typical applications include securing workholding fixtures, jigs, and clamping assemblies to milling machine tables, modular aluminum framing, and industrial fixture rails. Grade 5 steel construction meets mid-range strength requirements for most production and maintenance fastening tasks.

Key Features

• 1-8 UNC thread for broad compatibility with standard T-slot nuts and clamping hardware
• 4-inch thread length provides deep thread engagement for secure clamping
• 5-inch length under head accommodates thick fixture plates and stacked clamping setups
• 1-11/16-inch head width fits standard T-slot channel openings
• Grade 5 steel construction delivers reliable mid-range tensile strength
• Black oxide finish for moderate rust resistance and reduced glare in working environments

Compatibility

Designed for use in standard T-slot channel and rail systems requiring a 1-8 UNC T-bolt with a 1-11/16-inch head width and 5-inch length under head.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians. Before installation, confirm the T-slot channel width matches the 1-11/16-inch head width to ensure proper seating and lock engagement. Insert the bolt head into the T-slot channel, rotate 90 degrees to engage the channel lips, then thread on the appropriate nut or clamping hardware and torque to the fastener specification for Grade 5 1-inch UNC hardware. Always inspect the T-slot channel for damage or debris before installation to prevent improper seating.