{"title":"Nylon Insert Locknuts","description":"\u003ch2\u003eGrade C Nylon Insert Locknuts\u003c\/h2\u003e\n\u003cp\u003eBuilt for environments where vibration can compromise critical connections, Grade C Nylon Insert Locknuts are the go-to solution for durable, non-permanent locking power. A nylon collar embedded in the nut’s threads bites down on the bolt as it’s installed, creating interference that holds firm under pressure. No backing off and no thread damage. \u003c\/p\u003e\n\u003cp\u003eThese locknuts are engineered to perform in controlled, indoor conditions where corrosion is not a concern. The nylon insert delivers consistent clamping force that won’t loosen over time, making them ideal for assemblies that demand serviceability without sacrificing stability.\u003c\/p\u003e\n\u003ch3\u003eEngineered for High-Vibration Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHVAC units and internal ductwork support\u003c\/li\u003e\n\u003cli\u003eEquipment frames and appliance housings\u003c\/li\u003e\n\u003cli\u003eFactory machinery and manufacturing systems\u003c\/li\u003e\n\u003cli\u003eFurniture, shelving, and fixture assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGrade C classification means these are plain-finish steel—purpose-built for indoor environments. Not recommended for exterior or corrosive conditions.\u003c\/p\u003e\n\u003ch3\u003eChoose the Right Fit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNE - Standard Nylon Insert Locknuts:\u003c\/strong\u003e Everyday performance for general-purpose fastening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNU - Heavy Nylon Insert Locknuts:\u003c\/strong\u003e Thicker, stronger, and made to hold up under tougher loads and harsher movement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your project demands reliability without permanent locking, these locknuts are the answer. Choose your size, torque it down, and get on with the job.\u003c\/p\u003e","products":[{"product_id":"conquest-1-3-4-5-grade-c-nu-heavy-nylon-insert-locknut-plain","title":"Conquest 1-3\/4\"-5 Grade C NU Heavy Nylon Insert Locknut - Plain","description":"\u003ch2\u003eConquest 1-3\/4\"-5 Grade C NU Heavy Nylon Insert Locknut – Plain\u003c\/h2\u003e\n\n\u003cp\u003eThe Conquest 1-3\/4\"-5 Grade C NU Heavy Nylon Insert Locknut is engineered for securing oversized structural connections in environments where movement and vibration are expected. Designed with coarse 5 TPI threading and a nylon insert, this locknut resists loosening without the need for additional locking hardware or adhesives. The internal nylon ring grips the mating bolt threads, providing a friction-based hold that keeps assemblies tight—even under constant stress.\u003c\/p\u003e\n\n\u003ch2\u003eHeavy-Pattern Locknut for Structural, Mechanical, and Indoor Equipment Builds\u003c\/h2\u003e\n\n\u003cp\u003eManufactured from hardened Grade C carbon steel and finished plain, this locknut is built for use in clean, dry indoor settings. The heavy-pattern design offers increased bearing surface and load distribution, making it well suited for demanding industrial or structural tasks. Whether you’re anchoring equipment, framing mechanical systems, or performing maintenance in high-vibration zones, this locknut delivers long-term performance and reliability with fewer retightening cycles.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Nylon Insert:\u003c\/strong\u003e Creates internal thread friction to resist loosening from vibration and torque.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Pattern Strength:\u003c\/strong\u003e Rugged Grade C steel construction ensures durability under load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\/TPI:\u003c\/strong\u003e Coarse 5 TPI for rapid engagement and strong thread hold.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlain Finish:\u003c\/strong\u003e Designed for indoor, non-corrosive environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLarge-Scale Fit:\u003c\/strong\u003e Ideal for use with oversized threaded rod and bolts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMachinery assembly and heavy maintenance operations\u003c\/li\u003e\n  \u003cli\u003eHVAC structural support and duct framing\u003c\/li\u003e\n  \u003cli\u003eEquipment frames and heavy-duty mounting systems\u003c\/li\u003e\n  \u003cli\u003eLight industrial and indoor manufacturing builds\u003c\/li\u003e\n  \u003cli\u003eStructural bolting where constant vibration is a concern\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHand thread initially to protect the nylon insert before torqueing.\u003c\/li\u003e\n  \u003cli\u003eUse torque-rated tools appropriate for large, heavy-pattern hardware.\u003c\/li\u003e\n  \u003cli\u003eConfirm coarse-thread (5 TPI) compatibility with mating bolts or rod.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelated Items:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/a307-hex-bolts\"\u003eA307 Hex Bolts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/a307-threaded-rod\"\u003eA307 Threaded Rod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44428597231661,"sku":"NUNILNC-134-5","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/NUNILNC-134-5-full-1_206fb912-a343-4e3d-8609-2ebc7370e9fc.jpg?v=1768411886"},{"product_id":"conquest-1-4-28-grade-c-ne-nylon-insert-locknut-plain","title":"Conquest 1\/4\"-28 Grade C NE Nylon Insert Locknut - UNF, Plain","description":"\u003ch2\u003eConquest 1\/4\"-28 Grade C NE Nylon Insert Locknut – UNF, Plain\u003c\/h2\u003e\n\n\u003cp\u003eThe Conquest 1\/4\"-28 Grade C NE Nylon Insert Locknut is engineered to provide superior resistance to vibration and loosening in demanding mechanical assemblies. Built from hardened Grade C steel and featuring a fine-thread 28 TPI profile, this locknut is designed to maintain secure connections over time—even in high-movement or high-vibration environments. Its nylon insert adds a layer of friction-based locking that eliminates the need for constant retightening and delivers reliable performance under load.\u003c\/p\u003e\n\n\u003ch2\u003eFine-Thread Locknut for Machinery, Framing, and Vibration-Heavy Applications\u003c\/h2\u003e\n\n\u003cp\u003eThis nylon insert locknut features a plain finish for use in dry, indoor settings such as mechanical enclosures, HVAC frames, equipment mounts, and service panels. The fine-thread UNF profile enhances grip and allows for more precise torque applications. Professionals across maintenance, retrofit, and assembly operations depend on these locknuts when it’s critical to keep components secure without damaging mating hardware.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNylon Locking Mechanism:\u003c\/strong\u003e Provides consistent anti-vibration resistance and holds tight under dynamic conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade C Strength:\u003c\/strong\u003e Hardened steel construction for improved torque tolerance and load capacity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlain Finish:\u003c\/strong\u003e Suitable for clean, dry indoor environments where corrosion is not a concern.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\/TPI:\u003c\/strong\u003e Fine-thread 28 TPI (UNF) for precision engagement and greater holding power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamage-Free Fit:\u003c\/strong\u003e Locks securely without marring mating threads or requiring adhesives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndoor machinery and moving equipment\u003c\/li\u003e\n  \u003cli\u003eIndustrial HVAC systems and ducting supports\u003c\/li\u003e\n  \u003cli\u003eConveyor assemblies and service panels\u003c\/li\u003e\n  \u003cli\u003eFraming for non-corrosive environments\u003c\/li\u003e\n  \u003cli\u003eMaintenance and retrofit jobs requiring anti-loosening performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThread by hand initially to avoid cross-threading, then torque with appropriate tools.\u003c\/li\u003e\n  \u003cli\u003eUse in combination with Grade C bolts or fine-thread fasteners for maximum performance.\u003c\/li\u003e\n  \u003cli\u003eNot intended for repeated reuse—replace after several cycles of removal and reinstallation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44428598247469,"sku":"NENILNC-14-28","price":0.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/NENILNC-14-28-full-1_2d7762f0-32c0-4f38-88b4-51bb630a7c88.jpg?v=1768411887"},{"product_id":"conquest-1-4-20-grade-c-ne-nylon-insert-locknut-plain","title":"Conquest 1\/4\"-20 Grade C NE Nylon Insert Locknut - UNC, Plain","description":"\u003ch2\u003eConquest 1\/4\"-20 Grade C NE Nylon Insert Locknut – UNC, Plain\u003c\/h2\u003e\n\n\u003cp\u003eThe Conquest 1\/4\"-20 Grade C NE Nylon Insert Locknut is a coarse-thread locknut built to resist loosening in systems exposed to shock, vibration, or repetitive motion. Made from hardened Grade C steel with a plain, uncoated finish, this nut includes a nylon insert that locks against mating threads—providing consistent clamping force without damaging the hardware.\u003c\/p\u003e\n\n\u003ch2\u003eCoarse-Thread Locknut for Indoor Framing, Mechanical Systems, and Service Assemblies\u003c\/h2\u003e\n\n\u003cp\u003eIts UNC 20 TPI thread offers strong engagement for A307 hex bolts and threaded rod, making this locknut ideal for machinery bases, panel mounts, framing supports, and light mechanical assemblies. The nylon insert increases resistance to vibration, helping reduce maintenance cycles and the need for retightening.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNylon Locking Mechanism:\u003c\/strong\u003e Prevents vibration-induced loosening.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade C Steel:\u003c\/strong\u003e Hardened construction for reliable strength and torque tolerance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\/TPI:\u003c\/strong\u003e Coarse 20 TPI (UNC) for strong hold in general-purpose applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlain Finish:\u003c\/strong\u003e Ideal for indoor, non-corrosive environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecure Fit:\u003c\/strong\u003e Maintains thread engagement without galling or thread damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndoor machinery and moving equipment\u003c\/li\u003e\n  \u003cli\u003eIndustrial HVAC systems and ducting supports\u003c\/li\u003e\n  \u003cli\u003eConveyor assemblies and service panels\u003c\/li\u003e\n  \u003cli\u003eFraming for non-corrosive environments\u003c\/li\u003e\n  \u003cli\u003eMaintenance and retrofit jobs requiring anti-loosening performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBegin threading manually to protect the nylon insert during engagement.\u003c\/li\u003e\n  \u003cli\u003eTorque with standard calibrated tools suitable for coarse-thread hardware.\u003c\/li\u003e\n  \u003cli\u003eUse with A307 hex bolts or threaded rod for best compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelated Items:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/a307-hex-bolts\"\u003eA307 Hex Bolts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/a307-threaded-rod\"\u003eA307 Threaded Rod\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"US Cargo Control","offers":[{"title":"Default Title","offer_id":44428598345773,"sku":"NENILNC-14-20","price":0.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/files\/NENILNC-14-20-full-1_8cb6e4ed-2c88-453a-9c6a-9a7cbb5d803d.jpg?v=1768411883"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/2229\/9949\/collections\/Nylon-Lock-Nut_collection_image.jpg?v=1767880687","url":"https:\/\/www.uscargocontrol.com\/collections\/nylon-insert-locknuts.oembed","provider":"US Cargo Control","version":"1.0","type":"link"}