The Minsup® Sure-Lock® Safety Locking Pin Type A is a simple but essential safety accessory designed to secure Minsup A-Type and Sure-Lock® claw couplings against accidental disconnection in air and water transfer systems. Made in zinc-plated mild steel or stainless steel options, it helps confirm that fittings are fully locked in place, making it a practical choice for mining, industrial, and heavy-duty hose connection applications where safety and secure coupling are critical.