Loctite 27731 277 Red High Strength Threadlockers, 1.69 oz., 50 mL, 1 1/2" Thread Go to amazon.com Related posts Best loctite red FeatureSize: 50 mlColor: RedCharacteristic odor DescriptionLoctite 277 Large Bolt High Strength Red Threadlocker locks fasteners up to 1 1/2". Protects threads from rust and corrosion. Removable with heat and hand tools.