3/4"x4-1/4" 58-62 HRC Alloy Thru Hardened Dowl Pin

Fractional Size Thru Hardened Alloy Dowel Pins (50–62 HRC / 58–62 HRC)

Precision Alignment for High-Load Applications

Fractional size thru hardened alloy dowel pins with hardness ranges of 50–62 HRC and 58–62 HRC are engineered for precise alignment, positioning, and load distribution in demanding mechanical assemblies. These pins are precision ground to tight tolerances, ensuring consistent fit and repeatable accuracy in both press-fit and slip-fit applications. Their high hardness and dimensional stability make them essential for tooling, fixtures, and heavy-duty equipment.

Thru Hardened Alloy Steel Construction

Uniform Hardness Throughout

Unlike case-hardened alternatives, thru hardened alloy dowel pins maintain consistent hardness across the entire cross-section. This ensures reliable performance under shear stress, prevents deformation, and delivers extended service life in high-cycle applications.

Hardness Range Performance

• 50–62 HRC: Provides a balanced combination of strength and toughness, making it suitable for applications where slight flexibility is beneficial.

• 58–62 HRC: Offers maximum hardness and wear resistance, ideal for high-precision environments with continuous operation and minimal tolerance for wear.

Fractional Sizes for Standard U.S. Fitment

Wide Range of Diameters and Lengths

Available in a full selection of fractional (inch) sizes, these dowel pins are designed to integrate seamlessly with standard U.S. machining practices. Precision grinding ensures accurate diameters for consistent interference fits or slip fits based on application requirements.

Smooth Ground Finish

The finely ground surface finish reduces friction during installation and helps maintain the integrity of mating components, ensuring long-term alignment performance.

Applications Across Industrial Sectors

Thru hardened alloy dowel pins are widely used in automotive manufacturing, aerospace assemblies, mold and die setups, and heavy equipment. They are critical for locating parts, maintaining alignment, and ensuring repeatable assembly in precision systems.

Reliable High-Performance Alignment Solution

For applications requiring exceptional strength, wear resistance, and dimensional accuracy, fractional size thru hardened alloy dowel pins in 50–62 HRC or 58–62 HRC deliver consistent, long-lasting performance.