Gibraltar 841412-G T-bolt 1-8 Unc Grade 5 Steel

Product Description

The GIBRALTAR 841412-G is a heavy-duty T-bolt designed for secure fastening in industrial, structural, and mechanical applications. This bolt features a 1-8 UNC thread size with a 4-inch thread length and a 6-inch length under the head. Constructed from Grade 5 steel, it delivers reliable tensile strength for demanding installations. The T-shaped head measures 1-11/16 inches wide and 11/16 inches tall, allowing it to seat into standard T-slots on machine tables, fixtures, and channel framing. Machinists, millwrights, and industrial maintenance technicians are the primary installers of this fastener type.

This T-bolt is suited for use in T-slot tables, aluminum extrusion channels, fixture plates, and structural clamping assemblies. The UNC thread standard ensures broad compatibility with standard nuts and clamping hardware. Its Grade 5 steel construction makes it appropriate for moderate-to-high load clamping in manufacturing, fabrication, and mechanical assembly environments where a standard hex bolt head will not seat correctly in a channel slot.

Key Features

• 1-8 UNC thread for compatibility with standard clamping nuts and hardware
• 4-inch thread length provides ample engagement depth for thick fixtures and clamps
• 6-inch length under head accommodates deep T-slot channel assemblies
• Grade 5 steel construction offers reliable tensile and shear strength
• T-shaped head seats into standard T-slots without rotation
• Head width of 1-11/16 inches and head height of 11/16 inches for consistent slot fitment

Compatibility

Designed for use in standard T-slot tables, machine fixtures, aluminum extrusion channels, and structural clamping systems that accept a 1-8 UNC T-bolt with a 1-11/16-inch head width.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians familiar with T-slot fastening systems. Slide the T-bolt head into the channel slot before positioning the workpiece or clamp, as the head cannot be inserted once the slot is obstructed. Apply torque with a standard wrench or socket to the mating nut rather than the bolt head. Verify that the channel slot width is compatible with the head dimensions before installation to prevent damage to the slot or fastener.