JB Weld threadlockers provide a reliable and superior lock and seal for threaded fasteners. Ideal on all mechanical parts, body assemblies, and hundreds of other applications to prevent loosening of fasteners from shock and vibration. No spill, drip, or clog cap. Medium strength threadlocker is ideal for fastener applications requiring easy disassembly with hand tools. Ideal for 1/4 In. to 1 In. fasteners. Applications include rocker arms, stud bolts, frame bolts, fasteners & bushings, loose screws, and vibration sensitive items. OEM (Original Equipment Manufacturer) approved.