Permatex red gel threadlocker in the Gel Twist pin point applicator. A high-strength red threadlocker gel for heavy-duty application. Ideal for reliably securing all permanent nut and bolt application 3/8" to 1" (10mm to 25mm) and greater. Locks and seals while preventing parts from loosening due to vibration. Eliminates the need for split ring lock washers, toothed lock washers, serrated toothed flange nuts and ribbed flange bolts. Requires heat or special tools for removal. Permanently locks studs for applications such as ring gear bolts, frame bolts, and particularly well suited for cylinder block and rocker arm studs. Puts you in control of your threaded assemblies. Secures threaded assemblies with the same quality as other chemical solutions, without the problems. No more liquid drips or solid stick globs to deal with.