MIDWEST FASTENER CORP
MIDWEST FASTENER CORP 09649 Free Spinning Washer Lock Nut 1/4"-20 Steel Zinc
A free-spinning washer lock nut resists loosening under vibration and torque, featuring a 1/4"-20 thread in zinc-plated steel
- TypeNuts
- Free-spinning washer resists loosening under vibration
- 1/4"-20 thread fits matching bolts and studs
- Steel construction provides structural strength for fastening
- Zinc coating protects against corrosion in harsh environments
- Manufacturer part 9649 ensures correct identification and ordering
What this nut does
This lock nut resists loosening when subjected to vibration and torque. The free-spinning washer distributes clamping force across the mating surface. It fits a 1/4"-20 thread and is made from steel with a zinc finish.
How it fits a build
The nut threads onto a 1/4"-20 bolt or stud and the integrated washer removes the need for a separate flat washer. Zinc plating provides corrosion resistance for indoor or sheltered outdoor assemblies. It suits automotive, machinery and general fabrication tasks.
Behaviour under load
The prevailing-torque design maintains clamping force during sustained vibration rather than only during initial tightening. Steel construction preserves thread integrity through repeated thermal cycles. The free-spinning washer prevents surface marring while the joint settles under continuous load.
Highlights
- Free-spinning washer resists loosening under vibration
- 1/4"-20 thread fits matching bolts and studs
- Steel construction provides structural strength for fastening
- Zinc coating protects against corrosion in harsh environments
- Manufacturer part 9649 ensures correct identification and ordering
Specifications
| Brand | MIDWEST FASTENER |
|---|---|
| Type | Nuts |
Questions about this item
Will the 1/4"-20 thread hold under constant vibration?
The free-spinning washer lock nut resists loosening caused by vibration and torque.
Does the steel zinc finish handle all-day heat without degrading?
The zinc coating protects the steel from corrosion during extended use.
Do I need a specific wrench size for the 1/4"-20 nut?
A standard wrench or socket fitting 1/4"-20 hardware is required for installation.
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