Holo-krome 04066 Spiral Vent Pull Out Dowel Pin 1/2 X 2 in

Product Description

The HOLO-KROME 04066 is a spiral vent pull out dowel pin designed for precision alignment and removal applications in mechanical assemblies. Manufactured from Grade 4000 alloy steel with a bright finish, this pin measures 0.5 inches in diameter and 2 inches in overall length. The threaded end allows for extraction using a standard puller, making controlled removal straightforward without damaging mating components. Surface hardness is Rockwell C60-64, with a core hardness of Rockwell C50-58, providing a tough outer layer over a resilient core. This fastener is suited for machinists, tool and die technicians, and maintenance mechanics who need a reliable locating pin that can be removed cleanly under service conditions.

This dowel pin fits industrial manufacturing, tooling, and MRO (maintenance, repair, and operations) environments where alignment precision is critical. The spiral vent groove allows air and lubricant to escape during press insertion, reducing hydraulic lock and preventing component damage. The threaded pull out end is particularly useful in blind-hole applications where a standard drive-out method is not possible. Typical installations include jig and fixture assemblies, machine tool components, and die sets across light and heavy manufacturing operations.

Key Features

• Spiral vent groove reduces hydraulic lock during press-fit insertion
• Threaded end enables clean extraction from blind holes without damaging bore
• Grade 4000 alloy steel construction for high strength and wear resistance
• Surface hardness of Rockwell C60-64 with core hardness of Rockwell C50-58
• Bright finish for corrosion resistance in standard shop environments
• Meets ASME/ANSI B18.8.2 and MIL-S-7742 standards

Compatibility

Designed as an OEM-style replacement or direct-fit dowel pin for precision alignment applications in industrial jigs, fixtures, die sets, and machine tool assemblies requiring a 0.5-inch diameter, 2-inch length spiral vent pull out configuration.

Installation Notes

Installation and removal of dowel pins is typically performed by machinists or maintenance mechanics using a hydraulic or arbor press and appropriate extraction tooling. Always verify bore diameter and tolerance before pressing in the pin to ensure proper fit class. For pull out extraction, use a threaded puller matched to the pin end thread specification. Ensure the assembly is fully de-energized and secured before performing any pin installation or removal work.