Dual-Diameter Stepped Pin with Shoulder

The Qimao Metal Manufacturer Dual-Diameter Stepped Pin with Shoulder locating diameter comes ground to h6, h7, or m6 tolerance, so the pin fits the mating hole consistently without play. The larger shoulder section is machined square to the axis, giving you a positive stop surface that prevents over-insertion.

We make these from hardened steel with heat treatment reaching HRC 38–42, so they hold up well under repeated use. For wet or corrosive environments, SUS304 stainless steel is available.

Black oxide works for most shop-floor applications. Zinc plating adds moderate rust protection. Nickel plating gives a cleaner appearance with extra durability.

Locating diameters range from Ø1mm up to Ø20mm. Shoulder diameter, step height, and overall length can all be adjusted to your drawing. Concentricity between the locating section and the shoulder is held tight through precision machining. Every batch gets checked with calibrated gauges for diameter, shoulder squareness, and surface finish before we ship.

Product Parameter (Specification)

Product Feature

• Its design integrates positioning and stopping functions into a single component. The larger shoulder diameter prevents over-insertion and provides a mechanical limit, eliminating the need for separate stop washers or spacers.

• Precision-ground locating section maintains tight diametral tolerances in the h6, h7, or m6 range. This controlled fit ensures consistent component alignment and repeatable positioning across multiple assembly cycles.

• Heat-treated steel construction with hardness of HRC 38–42 provides wear resistance for repeated use. The hardened surface maintains dimensional stability even after extended service in industrial environments.

Application

• Fixture and tool construction where accurate component positioning and mechanical stopping are both required. The Dual-Diameter Stepped Pin with Shoulder design provides precise locating while preventing over-travel in clamping fixtures.

• Automated assembly systems requiring repeatable component placement. The stepped geometry ensures consistent registration for parts that are positioned and removed multiple times.

• Mold assemblies requiring limit stops and precise alignment between mold halves. The shoulder acts as a positive stop while the locating section maintains alignment between components.

Factory Advantages

1. Our manufacturing facility maintains strict quality control protocols for Dual-Diameter Stepped Pin with Shoulder production.

2. We operate CNC turning centers capable of holding diameters to ±0.01mm, ensuring consistent fit across production runs.

3. Heat treatment is performed in-house with continuous furnace monitoring, guaranteeing uniform hardness throughout each batch. 4. Surface finishing is conducted using controlled processes to achieve consistent coating thickness and adhesion.

5. Our engineering team collaborates with customers to optimize pin geometry for specific applications, offering design assistance for custom step ratios or special material requirements.

6. We stock raw material inventory for this product line, enabling typical lead times of 10 to 15 working days for standard orders.

7. Each production lot undergoes comprehensive dimensional inspection, with test reports available upon request.

8. We also support specialized finishing requirements, including black oxide, zinc plating, and nickel plating, to match specific environmental conditions or appearance specifications.