Holo-krome 04082 Spiral Vent Pull Out Dowel Pin 5/8x2 in

Product Description

The HOLO-KROME 04082 is a spiral vent pull out dowel pin designed for precision alignment and fastening applications in industrial and mechanical assemblies. Manufactured from Grade 4000 alloy steel with a black luster finish, this pin measures 5/8 inch in diameter and 2 inches in overall length. The threaded end allows for controlled extraction using a standard pull-out tool, making it suitable for applications where disassembly is required. Surface hardness is rated at Rockwell C60-64 with a core hardness of Rockwell C50-58, providing excellent resistance to shear and wear. Licensed machinists, maintenance technicians, and mechanical assemblers are the primary installers of this fastener.

This dowel pin is used in applications requiring precise hole alignment and repeatable positioning in tooling fixtures, dies, molds, and general mechanical assemblies. The spiral vent groove along the body allows trapped air and lubricant to escape during installation, preventing hydraulic lock in blind holes. It conforms to ASME/ANSI B18.8.2 and MIL-S-7742 standards, making it appropriate for both commercial manufacturing environments and military-specification applications where dimensional and hardness tolerances must be maintained.

Key Features

• Threaded end design allows clean pull-out removal without damaging the host bore
• Spiral vent groove prevents hydraulic lock during installation in blind holes
• Grade 4000 alloy steel construction with Rockwell C60-64 surface hardness for wear resistance
• Core hardness of Rockwell C50-58 provides toughness under shear loading
• Black luster finish offers moderate corrosion resistance for industrial environments
• Meets ASME/ANSI B18.8.2 and MIL-S-7742 dimensional and material standards

Compatibility

Designed as an OEM-style replacement or direct-fit component for tooling fixtures, dies, and mechanical assemblies requiring a 5/8-inch diameter pull-out dowel pin per ASME/ANSI B18.8.2 and MIL-S-7742 specifications.

Installation Notes

Installation and removal should be performed by qualified machinists or mechanical assemblers familiar with precision fastener fitment. Press-fit dowel pins require controlled force application using an arbor press or similar tool — never drive with an impact hammer, as this can damage the bore or alter pin concentricity. Ensure the receiving hole is clean, deburred, and dimensionally compliant before installation. Power down and de-energize any equipment before servicing assemblies that contain these pins.