Crimson’s Hinged Spiral Nail Stop Collar is designed for quick and secure installation on the casing without the need to slip it over the pipe end. The collar features two spiral-locking pins that are driven in firmly, ensuring a strong, reliable grip around the casing and preventing movement during running operations.

This design allows for rapid latch-on installation, making it especially useful in situations where time efficiency is critical. The collar also provides maximum annular clearance, optimizing fluid circulation and overall wellbore performance.

Each Stop Collar undergoes a phosphate surface treatment for enhanced corrosion resistance, followed by a durable polyester powder coating to ensure long-lasting protection in harsh downhole environments.

Available in sizes from 4½” to 30”, with special sizes available upon request.