Loctite 27741 Red 277 Large Bolt High Strength Threadlocker, 250 mL Bottle Go to amazon.com Related posts Best loctite red FeatureSize: 250 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.