Z-71 Permanent Thread Lock 0.20 oz (PAAPT71)

Z-71 Permanent Thread Lock is a 0.20 oz bottle of permanent-strength thread locker designed to secure threaded fasteners in place. It locks and seals metal nuts, bolts, and studs to prevent loosening from vibration, keeping assemblies tight over time.

Its formula resists gas and oil and withstands temperatures from -65° to 300°F, making it well-suited for fasteners exposed to fuels, lubricants, and temperature changes. When applied to threads, it helps maintain reliable, vibration-resistant joints across a range of hobby, workshop, and mechanical applications.