Value Collection 40021 Steel T-slot Bolt 3/4-10 Uncoated

Product Description

The VALUE COLLECTION 40021 is a steel T-slot bolt designed to secure workpieces, fixtures, and clamping hardware to T-slot tables, machine beds, and fixture plates commonly found in machining and fabrication environments. The bolt features a 3/4-10 UNC thread with a 2-inch thread length and a 4-1/2-inch length under the head. The T-slot head is sized to engage a 3/4-inch slot width, with a head width of 1-1/4 inches and a head height of 7/16 inches. Manufactured from C-1045 steel at Grade 5 strength and left uncoated, this bolt is a standard hardware item installed by machinists, toolmakers, and fixture builders.

This T-slot bolt is used in machine shop and industrial fabrication settings where workholding and fixturing require a secure, repeatable connection to T-slotted surfaces. Typical applications include milling machine tables, welding fixture plates, modular fixturing systems, and precision clamping setups. It installs into any T-slot table or fixture plate machined to accept a 3/4-inch T-slot. The Class 3 thread fit provides a tighter tolerance suitable for precision fixturing work.

Key Features

• 3/4-10 UNC thread with Class 3 fit for tight tolerance engagement
• 2-inch thread length provides adequate clamping depth for standard T-slot hardware
• Head sized for 3/4-inch T-slots with a 1-1/4-inch head width and 7/16-inch head height
• 4-1/2-inch length under head accommodates thicker fixture components
• C-1045 steel construction at Grade 5 strength for reliable clamping loads
• Uncoated finish suitable for indoor machining and fixturing environments

Compatibility

Designed for use with T-slot tables, machine beds, and fixture plates machined to accept a 3/4-inch T-slot width using 3/4-10 UNC threaded hardware.

Installation Notes

Installation is performed by machinists or toolmakers as part of workholding and fixturing setup. The T-slot head is inserted into the slot and rotated 90 degrees to engage the slot rails before tightening with a standard hex nut and appropriate wrench. Do not overtighten beyond the rated capacity of the fixture plate material or the clamping hardware being used. Inspect the slot channel for debris or damage before installation to ensure proper seating of the bolt head.