Holo-krome 03058 Oversized Dowel Pin 3/8 X 1 in Alloy Steel

Product Description

The HOLO-KROME 03058 is a military specification oversized dowel pin manufactured from Grade 4000 alloy steel with a black luster finish. At 3/8 inch in diameter and 1 inch in overall length, this pin meets ASME B18.8.2 dimensional and tolerance standards, with a diameter tolerance of 0.0010 inches. One end is beveled and the other is rounded, which aids controlled insertion and alignment during assembly. The oversized designation means this pin is intended for use in applications where standard-tolerance holes have been reamed or worn beyond original specification, restoring accurate component alignment without full bore replacement. Machinists, maintenance technicians, and precision assembly professionals install these pins in tooling fixtures, jigs, and mechanical assemblies requiring tight positional control.

This dowel pin is suited for industrial maintenance, tooling, and precision mechanical assembly applications where oversized replacement pins are needed to restore alignment in previously reamed or worn bores. The military specification designation indicates the part was produced to meet elevated dimensional and material standards, making it appropriate for demanding applications in both original equipment and repair contexts. The black luster finish provides a degree of surface protection. This item is sold individually but carries a minimum order quantity of 5 units.

Key Features

• Military specification oversized design per ASME B18.8.2 for use in reamed or worn bores
• Grade 4000 alloy steel construction for strength and durability in high-load alignment applications
• Black luster finish for surface protection
• One beveled end and one rounded end for controlled, damage-free insertion
• Diameter tolerance of 0.0010 inches for precise fitment
• 3/8 inch diameter by 1 inch length suits a wide range of tooling and fixture applications

Compatibility

Designed as an ASME B18.8.2 military specification oversized replacement dowel pin for tooling fixtures, jigs, and mechanical assemblies requiring a 3/8 inch oversized bore diameter.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a press or mallet with an appropriate pin driver. The bore must be reamed to the correct oversized diameter before installation to ensure proper fit and avoid damage to the pin or workpiece. Always de-energize and lock out any machinery before servicing alignment components. Do not force the pin into an undersized bore, as this can cause bore damage or pin failure.