Gibraltar 842530-G Steel T-slot Bolt 1/2-13 Black

Product Description

The GIBRALTAR 842530-G is a Grade 5 steel T-slot bolt designed for securing workpieces, fixtures, and tooling components to T-slot tables, extrusions, and machine beds. The bolt features a 1/2-13 UNC thread with a 2-inch thread length and a head profile sized to seat firmly within a 1/2-inch wide T-slot. With a 3-inch length under the head and a black finish for corrosion resistance, this fastener is built for demanding industrial and trade environments. Machinists, fabricators, and fixture builders rely on this type of bolt for repeatable, secure clamping in production and maintenance settings.

The 842530-G is suited for use in machine shop T-slot tables, CNC and manual milling fixtures, welding positioner tables, and fabrication jigs that use 1/2-inch wide T-slot tracks. The Grade 5 material rating provides adequate tensile strength for clamping and workholding applications typical in light-to-medium industrial use. The black finish helps resist surface corrosion in shop environments. This bolt is sold individually and is appropriate wherever a standard 1/2-13 T-slot fastener is required.

Key Features

• 1/2-13 UNC thread size with 2-inch thread length for standard workholding applications
• Fits 1/2-inch wide T-slots on machine tables, extrusions, and fabrication fixtures
• Grade 5 steel construction for reliable tensile strength under clamping loads
• 3-inch length under head accommodates typical fixture and clamp stack heights
• 7/8-inch head width and 11/32-inch head height sized for proper T-slot engagement
• Black finish provides basic corrosion resistance in shop environments

Compatibility

Designed as a direct-fit replacement or standard fastener for T-slot tables, machine beds, and extruded rail systems using 1/2-inch wide T-slots and 1/2-13 UNC threaded hardware.

Installation Notes

Installation is performed by machinists or fixture technicians familiar with T-slot workholding systems. Ensure the machine table or extrusion is de-energized and the work area is clear before repositioning or replacing T-slot hardware. The bolt head must be fully seated within the T-slot channel before threading a nut or clamp onto the exposed stud. Do not overtighten beyond the rating appropriate for Grade 5 fasteners and the clamping hardware in use.