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LOCTITE 37421 Red Heavy Duty Threadlocker is a methacrylate-based adhesive designed for securing large bolts and studs (≥1 inch) in automotive and industrial settings. Trusted by professionals and OEMs, it bonds all metals including stainless steel and aluminum, sets quickly in 10 minutes, fully cures in 24 hours, and resists temperatures up to 140°F. Ideal for high-shock, vibration-prone environments, it ensures durable, reliable fastening with easy removal via localized heating.
| ASIN | B0028OJAIY |
| Best Sellers Rank | #5,723 in Automotive ( See Top 100 in Automotive ) #25 in Thread Lock Sealers |
| Brand Name | Loctite |
| Color | Red |
| Compatible Material | Aluminum, Stainless Steel |
| Container Type | Tube |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,084) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00079340374218 |
| Included Components | (1) LOCTITE 271 Threadlocker for Automotive | Red, 6 ml Tube |
| Item Form | Tube |
| Item Package Quantity | 1 |
| Item Type Name | automotive-thread-lock-sealers |
| Item Weight | 4.54 g |
| Manufacturer | Loctite |
| Material Type | Methacrylate-based Resin |
| Model | 37421 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Strong |
| Part Number | 37421 |
| Specific Uses For Product | Automotive, Industrial, DIY, Furniture, Heavy-Duty |
| UPC | 079340374218 |
| Viscosity Level | Low |
| Volume | 6 Milliliters |
| Water Resistance Level | Water Repellent |
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