High strength hold threadlocker trusted by professionals! In applications where you need a high strength threadlocker to permanently lock threads, Brownells High Strength Red Threadlokcer can be just the added tool you need.This anaerobic threadlocker has excellent temperature and solvent resistance. Available in two convenient sizes; a 10 ml (.34 oz bottle) for repeated use and 1.8ml one time use pillow pack. Brownells High Strength Red Threadlocker should be used for a more permanent hold when shock and vibration may cause metal thread engagement to loosen. Made in the USA High strength hold red threadlocker, 140-300 lb/in Not recommended for use with plastics or in oxygen rich environments