Flexible Top Lock Nut, 1/4"-20, Steel, Grade 2, Black Oxide, 3/64 in Ht, 125 PK MPN:20FKC-420
Flexible Top Lock Nut, 1/4"-20, Steel, Grade 2, Black Oxide, 3/64 in Ht, 125 PK
The Flexloc Flexible Top Lock Nut is a reliable and versatile fastening solution for various applications. Its flexible top design allows for easy installation and removal, while its heavy jam hex type provides a secure fit in 1/4in-20 threaded holes. Made from Grade 2 steel with a black oxide finish, this lock nut can withstand extreme temperatures (-70°F to 1200°F) and is impact-resistant. Ideal for use in aerospace, military, and industrial settings, the Flexloc Flexible Top Lock Nut meets strict dimensional standards and is available in a 125-pack for convenience.
Top product features:
- Impact-Resistant
- Thread Fit 2B provides a secure and reliable connection
- Black Oxide Finish provides corrosion resistance
Top product applications:
- Machine Building
- Industrial Automation
- Aerospace Engineering
Lock Nut, Finish Black Oxide, Material Steel, Material Grade/Class Grade 2, Thread Size 1/4 In.-20, Hex Width 1/2 in, Hex Height 3/64 in, Lock Type Flex Top, Dimensional Standards MIL-S-7742, NASM25027, USAS B46.1, System of Measurement Inch, Hex Type Heavy Jam, Thread Direction Right Hand, Industry Standards Not Applicable, Maximum Temperature 1,200 Degrees F, Minimum Temperature -70 Degrees F, Pack Size Small Pack, Removable Yes, Resistance Properties Impact-Resistant, Thread Fit 2B
Additional Information
- Country of Origin: US
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 5 days
- Minimum Order Quantity: 1
- Unit of Measure: PK
- Package Length: 4.00
- Package Width: 2.00
- Package Height: 3.00
- Package Weight: 1.00
Product info last updated on January 22, 2026 10:28am UTC
Category: Nuts