Holo-krome 04038 Spiral Vent Pull Out Dowel Pin 5/16x2.5in

Product Description

The HOLO-KROME 04038 is a spiral vent pull out dowel pin designed for precision fastening and alignment applications in industrial and mechanical assemblies. Manufactured from Grade 4000 alloy steel with a black luster finish, this pin measures 5/16 inch in diameter and 2.5 inches in overall length. One end is beveled for guided insertion and the opposite end is threaded for pull-out removal, making extraction clean and controlled without damaging the bore. It conforms to MIL-S-7742 fastener standards. Machinists, maintenance technicians, and tool and die professionals are the primary installers of this component.

This dowel pin is suited for use in jigs, fixtures, tooling plates, and precision-machined assemblies where repeatable alignment and positive location are required. The spiral vent groove allows air and fluid to escape during press-fit installation, reducing hydraulic lock and easing assembly. Typical applications include machine tool components, die sets, and industrial equipment where controlled disassembly is a recurring maintenance requirement.

Key Features

• Spiral vent groove prevents hydraulic lock during press-fit installation
• Threaded end allows pull-out removal without bore damage
• Beveled end provides guided entry into close-tolerance holes
• Grade 4000 alloy steel construction for strength and wear resistance
• Black luster finish for corrosion inhibition during storage and service
• Meets MIL-S-7742 fastener standard

Compatibility

Designed as an OEM-style replacement or direct-install component for precision alignment applications requiring a 5/16 inch spiral vent pull out dowel pin conforming to MIL-S-7742.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using an arbor press or appropriately sized driver to seat the pin without impact damage to the bore. Ensure the receiving hole is clean, deburred, and dimensioned to the correct tolerance before installation. The threaded end requires a properly sized pull-out tool or bolt for extraction during disassembly. Do not exceed the designed interference fit for the bore material.