Diamond American Standard Roller Chain Double Full Lock Spare (D12102)

The Diamond D12102 Double Full Lock Spare is a precision-engineered chain connector specifically designed for 3/4″ pitch (D121) roller chains. Its double locking system ensures a firm and vibration-resistant hold, making it well-suited for applications where durability and stability are critical.

This spare link provides a dependable solution for maintaining or extending chain assemblies in industrial machines, conveyors, agricultural equipment, and power transmission systems. The robust alloy steel construction enhances its strength and wear resistance, ensuring long-term performance even in tough operating conditions.

Easy to install and built for longevity, the D12102 helps reduce downtime and supports consistent chain operation with added safety against link disconnection during high-stress operations.

Key Features:

• Compatible with 3/4″ pitch (D121 series) roller chains

• Double lock mechanism for extra secure attachment

• Made from high-strength, wear-resistant alloy steel

• Ideal for heavy-duty and high-vibration applications

• Ensures long-lasting, stable chain performance