{"product_id":"loctite-277","title":"LOCTITE® 277 High-Strength Red Threadlocker for Large Bolts \u0026 Studs","description":"\u003cp\u003e\u003cstrong\u003eLOCTITE® 277\u003c\/strong\u003e is a one-component, high-strength red anaerobic threadlocker made for permanent locking and sealing of large metal bolts and studs, especially M25 (25 mm \/ 1 in.) and larger. It cures when confined between close-fitting metal threads without air, helping prevent loosening and leakage caused by shock and vibration.\u003c\/p\u003e\n\n\u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-strength, high-torque retention for large threaded fasteners\u003c\/li\u003e\n  \u003cli\u003eHigh-viscosity liquid stays where it is applied and helps fill threaded engagement areas\u003c\/li\u003e\n  \u003cli\u003eHelps prevent unwanted movement, loosening, leakage, and corrosion\u003c\/li\u003e\n  \u003cli\u003eFluoresces under UV light to support application inspection\u003c\/li\u003e\n  \u003cli\u003eSingle-component formula requires no mixing\u003c\/li\u003e\n  \u003cli\u003eCan be disassembled with localized heat when normal hand tools are insufficient\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Applications\u003c\/h2\u003e\n\u003cp\u003eUse for permanent threadlocking and sealing of large metal bolts, studs, and threaded assemblies in industrial machinery, heavy equipment, powertrain and chassis work, maintenance and repair, oil and gas equipment, power-generation equipment, and remanufacturing. Henkel recommends the product for steel, stainless steel, and brass. Passive metals such as stainless steel, aluminum, and plated surfaces may require an activator when cure speed is slow.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eTechnology\u003c\/th\u003e\n\u003ctd\u003eAcrylic; dimethacrylate ester\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eCure type\u003c\/th\u003e\n\u003ctd\u003eAnaerobic; activator may be used as a secondary cure aid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eComponents\u003c\/th\u003e\n\u003ctd\u003eOne component; no mixing required\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eAppearance\u003c\/th\u003e\n\u003ctd\u003eRed liquid; fluorescent under UV light\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eStrength\u003c\/th\u003e\n\u003ctd\u003eHigh strength\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eViscosity\u003c\/th\u003e\n\u003ctd\u003e6,000–8,000 mPa·s (cP) at 25°C, Brookfield RVT, spindle 4 at 20 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eSpecific gravity\u003c\/th\u003e\n\u003ctd\u003e1.12 at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eFixture time\u003c\/th\u003e\n\u003ctd\u003e30 minutes (manufacturer-listed typical value)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eTemperature range\u003c\/th\u003e\n\u003ctd\u003e-55°C to 150°C (-65°F to 300°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eBreakaway torque\u003c\/th\u003e\n\u003ctd\u003e32 N·m (280 lb-in) on M10 steel nuts and bolts after 24 hours at 22°C, ISO 10964\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003ePrevail torque\u003c\/th\u003e\n\u003ctd\u003e32 N·m (280 lb-in) on M10 steel nuts and bolts after 24 hours at 22°C, ISO 10964\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth scope=\"row\"\u003eSpecification note\u003c\/th\u003e\n\u003ctd\u003eHenkel lists MIL-S-46163A Type I Grade L; the TDS states the product is tested to the specification’s lot requirements and notes that this is a regional approval.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eAvailable Bottle Sizes and Henkel IDH Numbers\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e36 ml bottle\u003c\/strong\u003e — IDH 555353\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e50 ml bottle\u003c\/strong\u003e — IDH 88448\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e250 ml bottle\u003c\/strong\u003e — IDH 88449\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDirections for Use\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean:\u003c\/strong\u003e Remove oil, grease, and contamination from internal and external threads with a suitable LOCTITE® cleaning solvent, then allow the surfaces to dry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActivate when needed:\u003c\/strong\u003e If cure is slow on inactive or passive metals, across larger gaps, or below 5°C (41°F), apply LOCTITE® SF 7471 or SF 7649 activator and allow it to dry.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThrough holes:\u003c\/strong\u003e Apply several drops to the bolt at the nut-engagement area.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlind holes:\u003c\/strong\u003e Apply several drops down the internal threads toward the bottom of the hole. Add a small amount to the male threads before assembly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread sealing:\u003c\/strong\u003e Apply a continuous 360° bead to the leading male threads while leaving the first thread free. Work the product into the threads; for larger threads or voids, also apply it to the female threads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAssemble:\u003c\/strong\u003e Install and tighten the fastener to the required torque. When assembling multiple fasteners, complete final tightening within the fixture-time window.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisassemble:\u003c\/strong\u003e Try standard hand tools first. If necessary, heat the nut or bolt locally to approximately 250°C (482°F) and disassemble while hot using appropriate tools and precautions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean up:\u003c\/strong\u003e Remove cured residue using a LOCTITE® solvent soak combined with mechanical abrasion such as a wire brush.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eApplication note:\u003c\/strong\u003e Do not let the dispensing tip touch metal during application; contact can promote cure and clog the nozzle.\u003c\/p\u003e\n\n\u003ch2\u003eStorage\u003c\/h2\u003e\n\u003cp\u003eKeep the unopened container in a dry location. Henkel’s optimal storage range is 8°C to 21°C (46°F to 70°F). Storage below 8°C or above 28°C (82°F) may adversely affect product properties. Do not return dispensed or potentially contaminated material to the original container.\u003c\/p\u003e\n\n\u003ch2\u003eSafety and Use Limitations\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalifornia Proposition 65 warning:\u003c\/strong\u003e Cancer and Reproductive Harm — www.P65Warnings.ca.gov.\u003c\/li\u003e\n  \u003cli\u003eNot recommended for pure-oxygen or oxygen-rich systems, or as a sealant for chlorine or other strong oxidizing materials.\u003c\/li\u003e\n  \u003cli\u003eNot normally recommended for plastics, especially thermoplastics that may stress-crack. Confirm compatibility on the actual substrate before use.\u003c\/li\u003e\n  \u003cli\u003eLocalized heat used for disassembly can cause burns and other hazards. Use suitable tools, ventilation, and personal protective equipment.\u003c\/li\u003e\n  \u003cli\u003eReview the current Henkel Safety Data Sheet before handling, and follow all listed health, safety, and PPE requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWeight Disclosure\u003c\/h2\u003e\n\u003cp\u003eHenkel does not publish a verified packaged shipping weight for these bottles. Shopify weight entries are calculated net-content mass estimates based on the official specific gravity of 1.12 at 25°C: 40.32 g for 36 ml, 56 g for 50 ml, and 280 g for 250 ml. These values do not include the bottle, cap, label, or shipping packaging and are not measured packaged weights.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eTechnical values are typical manufacturer data and are not purchase specifications. Confirm suitability with testing under actual service conditions and consult the current TDS and SDS.\u003c\/em\u003e\u003c\/p\u003e","brand":"Loctite","offers":[{"title":"36 ml Bottle","offer_id":48974609187070,"sku":"LT_277_36ML","price":24.99,"currency_code":"USD","in_stock":true},{"title":"50 ml Bottle","offer_id":48982347219198,"sku":"LT_277_50ML","price":52.99,"currency_code":"USD","in_stock":true},{"title":"250 ml Bottle","offer_id":48982347251966,"sku":"LT_277_250ML","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1212\/5762\/files\/loctite-277-36ml-idh-555353.webp?v=1789665520","url":"https:\/\/www.perigeedirect.com\/products\/loctite-277","provider":"Perigee Direct","version":"1.0","type":"link"}