Holo-krome 04088 Spiral Vent Pull Out Dowel Pin 5/8x3

Product Description

The HOLO-KROME 04088 is a spiral vent pull out dowel pin engineered for precision fastening applications that demand tight tolerances and reliable extraction. Manufactured from Grade 4000 alloy steel with a black luster finish, this pin measures 5/8 inch in diameter and 3 inches in overall length. It features a threaded end type for positive pull-out, and carries a surface hardness of Rockwell C60-64 with a core hardness of Rockwell C50-58, providing the strength and wear resistance required in demanding mechanical assemblies. Installation and removal by maintenance mechanics, toolmakers, and industrial technicians is straightforward thanks to the threaded pull-out design.

This dowel pin is suited for use in jigs, fixtures, dies, and machine assemblies where accurate part location and repeatable alignment are critical. The spiral vent channel allows for air and lubricant relief during press-fit installation, reducing hydraulic lock and insertion resistance in blind holes. It is appropriate for both production and maintenance environments in industrial, manufacturing, and precision machining applications where a removable, hardened alignment pin is required.

Key Features

• Spiral vent design relieves air and lubricant pressure during insertion into blind holes
• Threaded end enables positive mechanical extraction without damage to the workpiece
• Surface hardness of Rockwell C60-64 for wear resistance in high-cycle applications
• Core hardness of Rockwell C50-58 for toughness and impact resistance
• Grade 4000 alloy steel construction for high strength and durability
• Meets ASME/ANSI B18.8.2 and MIL-S-7742 standards for dimensional and performance compliance

Compatibility

Designed as a standard-compliant replacement or original-install dowel pin for jigs, fixtures, dies, and precision machine assemblies requiring a 5/8-inch diameter, 3-inch length spiral vent pull out pin per ASME/ANSI B18.8.2 and MIL-S-7742.

Installation Notes

Installation should be performed by qualified toolmakers, machinists, or maintenance technicians familiar with precision fastener practices. Ensure the receiving hole is clean, properly sized, and deburred before driving or pressing the pin into position. Power down and de-energize any associated machinery before servicing components that incorporate dowel pins. Use appropriate press or extraction tooling and never apply hammer blows directly to the threaded end.