Du-Bro Lock Nuts, 4-40 (DUB170)
$1.75
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In Stock
Du-Bro Lock Nuts, 4-40 (DUB170)
$1.75
In Stock
Arrives
Free shipping on orders $99+.
Pick up today in Cumming, usually ready in 2 hours.
Aircraft Quality
Zinc plated for maximum durability
Nylon Insert
Prevents vibration back out
4-40 Thread
Standard high precision hardware size
Rock Solid HardwareAircraft quality fasteners for builds
The DuBro Zinc Plated, Aircraft Quality, Nylon Insert Lock Nuts, 4-40 provide maximum holding power for your RC models. Engineered with an integrated nylon insert, these nuts resist loosening caused by intense vibration and hard impacts. Essential for any hobbyist's workbench, these 4-40 lock nuts ensure critical linkages and assemblies stay securely attached.
Unmatched Fastener SecurityPrecision lock nuts built to last
When constructing or maintaining high-performance radio-controlled aircraft and vehicles, hardware reliability is critical. The DuBro Zinc Plated, Aircraft Quality, Nylon Insert Lock Nuts, 4-40 feature premium zinc plating to protect against corrosion while delivering smooth thread engagement. The nylon locking collar tightly grips screw threads, offering superior resistance against backing out without galling or damaging the fasteners. Ideal for throttle linkages, control horns, and chassis assemblies, these RC hardware lock nuts provide trustworthy peace of mind.
Hardware SpecificationsExact measurements and technical details
Compatible Vehicles
Universal RC Models
Part Type
Hardware / Lock Nuts
Material
Zinc Plated Steel with Nylon Insert
Placement/Position
Universal Chassis & Linkages
Dimensions
4-40 Thread Size
Weight
Ultra Light Hardware Standard
Heavy Duty FeaturesEngineered for high stress applications
Aircraft Quality ConstructionPremium steel structure designed for maximum mechanical reliability
Nylon Locking InsertKeeps hardware securely fastened under extreme engine vibration
Zinc Plated FinishDelivers active corrosion resistance in all weather conditions
Standard 4-40 ThreadsCompatible with a broad range of RC aircraft and vehicle linkages
Multi-Use CapabilityHolds firm across multiple assembly and disassembly cycles
Essential Maintenance HardwarePerfect replacement lock nuts for repairs and custom builds
Frequently Asked QuestionsEverything you need to know
What makes DuBro Zinc Plated, Aircraft Quality, Nylon Insert Lock Nuts, 4-40 resistant to vibration?
They utilize an internal nylon ring insert that deformably grips the mating 4-40 screw threads, locking the nut firmly in place and preventing it from loosening due to engine or motor vibration.
Are the DuBro Zinc Plated, Aircraft Quality, Nylon Insert Lock Nuts, 4-40 corrosion resistant?
Yes, these lock nuts feature a protective zinc plating that resists rust and corrosion caused by moisture, humidity, and exposure to glow fuel.
What applications use DuBro Zinc Plated, Aircraft Quality, Nylon Insert Lock Nuts, 4-40?
The 4-40 size is widely used in RC airplane control linkages, engine mounts, steering assemblies on RC cars, and various general scale model fastening applications.
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