Gibraltar 841505-G Steel T-bolt 3/8-16 Grade 5

Product Description

The GIBRALTAR 841505-G is a Grade 5 steel T-bolt designed for secure fastening applications where a sliding or channel-mounted bolt head is required. Featuring a 3/8-16 UNC thread with a 2-inch thread length and a 2.5-inch length under the head, this T-bolt is built for reliable clamping force in structural and mechanical assemblies. The black oxide finish provides moderate corrosion resistance and reduces light glare on the fastener surface. With an 11/16-inch head width and 1/4-inch head height, the T-head profile is sized to engage standard T-slot tracks and channel fixtures used across a range of trade and industrial installations.

This T-bolt is suited for use in aluminum extrusion framing systems, HVAC equipment mounting channels, strut channel assemblies, and similar track-fastening applications found in mechanical, electrical, and plumbing rough-in work. The 3/8-16 UNC thread is a common standard size, making pairing with off-the-shelf hex nuts, flange nuts, or T-slot nuts straightforward. It is typically installed by mechanical, HVAC, or general trade contractors during equipment anchoring and support structure assembly.

Key Features

• Grade 5 steel construction for high tensile strength in clamping and fastening applications
• 3/8-16 UNC thread standard ensures broad compatibility with common hardware
• 2-inch thread length provides sufficient engagement depth for secure nut retention
• Black oxide finish for moderate corrosion resistance and reduced surface glare
• T-head profile sized at 11/16 inches wide by 1/4 inch tall for standard T-slot channel engagement
• 2.5-inch length under head accommodates typical panel and bracket thicknesses

Compatibility

Designed as a standard T-slot fastener for use with 3/8-16 UNC-threaded hardware in T-slot extrusions, strut channels, and equipment mounting track systems.

Installation Notes

Installation should be performed by a qualified trade professional familiar with mechanical fastening and torque requirements for Grade 5 fasteners. Always ensure the T-head is fully seated and engaged in the channel track before applying load or tightening the mating nut. Use appropriate wrenches or sockets sized for 3/8-16 hardware and inspect the channel for burrs or obstructions before sliding the bolt into position. Follow all applicable structural and mechanical codes for the specific application.