Quick Lock Pins for Rapid Changeover in Fixtures and Machine Assemblies

In industrial settings where efficiency equals profitability, every second counts. That’s why engineers and operators increasingly rely on Quick Lock Pins—simple yet powerful components that enable tool-free, rapid locking and unlocking of machine parts, fixtures, and modules.

This article from Dongguan Sango Hardware Fasteners Co., Ltd., a leading fastener manufacturer with 20+ years of experience, explores the design, application, and customization of Quick Lock Pins.

1. What Is a Quick Lock Pin?

A Quick Lock Pin is a spring-loaded mechanical pin designed for fast engagement and release without the need for tools. Typically used in modular fixtures, machine setups, or adjustable structures, quick lock pins enable secure fastening and rapid repositioning.

🔩 Key Benefits:

• Instant locking/unlocking
• Repeatable and secure positioning
• No tools required
• Suitable for high-frequency adjustments
• Strong shear and tensile resistance

2. Common Types of Quick Lock Pins

🔹 Push-Button Locking Pin

• Internal spring retracts ball bearings upon button press
• Ball bearings expand to lock in place
• Ideal for jigs, fixtures, and changeable mounts

🔹 Detent Lock Pin

• Uses spring-loaded ball at the tip
• Locks into place with friction
• Common in lighter-duty positioning tasks

🔹 Ring Pull Lock Pin

• Pull ring releases the locking mechanism
• Used in compact spaces where buttons aren’t accessible

🔹 T-Handle Lock Pin

• Ergonomic grip for heavy-duty applications
• Offers better leverage and torque

🔹 Heavy-Duty Quick Lock Pin

• Larger shaft, hardened steel, dual locking mechanism
• Suitable for robotic arms, lifting jigs, and vehicle assembly stations

3. Where Are Quick Lock Pins Used?

Quick lock pins are used across industries that prioritize modularity, safety, and speed:

• 🛠 Modular fixture systems
• ⚙️ Automation and CNC workholding
• 🏋️ Fitness equipment and resistance settings
• 🧰 Transport crates and foldable structures
• 🚀 Aerospace ground support tooling
• 📦 Packaging and sorting machinery

4. Choosing the Right Quick Lock Pin