Value Collection 20018 T-slot Bolt 1/2-13 Uncoated Steel

Product Description

The VALUE COLLECTION 20018 is an uncoated steel T-slot bolt designed for use in T-slot tracks and fixture systems common in machining, fabrication, and workholding applications. Built from Grade C-1045 steel to a strength grade of 5, it features a 1/2-13 UNC thread with a Class 3 thread fit for precise engagement. The bolt measures 3 inches under the head with a 1-1/2 inch thread length, making it suited to moderate clamping depth requirements. The T-slot head measures 7/8 inches wide and 9/32 inches tall, dimensioned to slide into standard 1/2 inch T-slots. Licensed machinists, toolmakers, and maintenance technicians are the typical installers of this hardware.

This bolt is used in T-slot table fixtures, mill tables, jig plates, and similar workholding setups where a sliding, positionable fastener is required. The 1/2 inch slot width fits standard 1/2 inch T-slot channels commonly found on milling machine tables and fixture plates. It is sold individually, making it practical for replacement of a single worn or damaged fastener without committing to a bulk purchase. The uncoated finish is suited for dry or lightly lubricated indoor environments where corrosion is not a primary concern.

Key Features

• Grade C-1045 steel construction with Grade 5 strength rating for reliable clamping force
• 1/2-13 UNC thread with Class 3 fit for precise, controlled engagement
• 3 inches length under head accommodates moderate fixture stack heights
• T-slot head sized at 7/8 inches wide and 9/32 inches tall for standard 1/2 inch slot channels
• Uncoated finish provides a clean, bare-steel surface suitable for indoor fixturing use
• Sold as a single unit for straightforward single-fastener replacement

Compatibility

Designed for use in standard 1/2 inch T-slot tracks on milling machine tables, fixture plates, and jig systems that accept 1/2-13 UNC T-slot bolts.

Installation Notes

Installation is typically performed by a machinist or maintenance technician. Slide the T-slot head into the track from the open end before positioning the workpiece, as the head cannot be inserted mid-slot. Use appropriately rated T-nuts, clamps, and clamping hardware rated for the application load. Inspect threads and the T-slot channel for burrs or damage before installation to ensure proper seating and clamping integrity.