Holo-krome 02157 Standard Dowel Pin 20mm X 80mm Grade 8

Product Description

The HOLO-KROME 02157 is a standard metric dowel pin manufactured from Grade 8 alloy steel with a black luster finish. It measures 20 mm in diameter and 80 mm in overall length, with a diameter tolerance of -0.0001 to 0.0001 inches for tight, repeatable positioning. One end is beveled and the other is rounded, conforming to ASME B18.8.5M and DIN 6325 standards. This pin is used to align mating components in precision assemblies and is installed by machinists, millwrights, toolmakers, and maintenance technicians working on industrial fixtures, dies, and machine components.

This dowel pin is suited for precision alignment applications in industrial and manufacturing environments. The 20 mm diameter and 80 mm length make it appropriate for medium-to-heavy-duty fixtures, jigs, mold bases, and machine housings where accurate part-to-part registration is required. The black luster finish provides a degree of surface protection during storage and service. It is sold individually and is appropriate wherever ASME B18.8.5M or DIN 6325 compliant metric dowel pins are specified.

Key Features

• Grade 8 alloy steel construction for high strength and hardness
• Diameter: 20 mm with tolerance of -0.0001 to 0.0001 inches for precision fit
• Overall length: 80 mm
• One beveled end and one rounded end per ASME B18.8.5M and DIN 6325
• Black luster finish for surface protection
• Sold as a single pin with a minimum order quantity of 1

Compatibility

Designed as an OEM-style precision fastener for applications requiring ASME B18.8.5M or DIN 6325 standard metric dowel pins in Grade 8 alloy steel at 20 mm diameter.

Installation Notes

Dowel pins of this type are typically pressed into reamed holes by machinists or millwrights using a hydraulic or arbor press. Ensure mating bores are reamed to the correct tolerance before installation to avoid galling or seizing. Do not drive pins with a hammer directly on the pin face, as this can damage the end geometry and the bore. Follow applicable machinery safety procedures and de-energize and lock out equipment before servicing any assembly that requires dowel pin removal or installation.