FREE delivery on orders over €150
Product Specifications:
| Item | Lock Nut |
| Finish | Cadmium Plated |
| Grade | Grade 2 |
| Hex Height | 7/64" |
| Hex Type | Thin Light Hex |
| Hex Width | 9/16" |
| Lock Type | Flexible Top |
| Material | Steel |
| Material Grade/class | Grade 2 |
| Max. Temp. | 1200°F |
| Min. Temp. | -70°F |
| Nut Height | 0.282" |
| Nut Type | Top Lock Jam Nut |
| Nut Type | Flexible Top |
| Removable | Yes |
| Resistance Properties | Impact Resistant, Shock And Vibration Resistant |
| System Of Measurement | Imperial |
| Thread Direction | Right Hand |
| Thread Fit | 3B |
| Thread Size | 3/8"-24 |
| Type | Top Lock Jam |
Shipping Info:
| Ship weight (kg) | 1.8 |
| Ship height (cm) | 2.82 |
| Ship length (cm) | 3.97 |
| Ship width (cm) | 3.97 |
| Country of Origin | US |
Product Variants
| Product | Model | Hex Width | Nut Height | Hex Height | Thread Fit | Thread Direction | Material Grade/class | Lock Type | Hex Type | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
21FK-1024 | 3/8" | 3/16" | 1/16" | 3B | Right Hand | Grade 2 | Flexible Top | Thin Light Hex | 200 | €207.47 | |
![]() |
21FK-1032 | 3/8" | 3/16" | 1/16" | 3B | Right Hand | Grade 2 | Flexible Top | Thin Light Hex | 200 | €142.65 | |
![]() |
21FK-420 | 7/16" | 7/32" | 5/64" | 2B | Right Hand | Grade 2 | Flexible Top | Thin Light Hex | 150 | €123.61 | |
![]() |
21FK-524 | 1/2" | 17/64" | 3/32" | 3B | Right Hand | Grade 2 | Flexible Top | Thin Light Hex | 150 | €188.62 | |
![]() |
21FK-632 | 5/16" | 0.141" | - | - | Right Hand | - | - | - | 200 | €188.60 | |
![]() |
21FK-820 | 3/4" | 0.328" | 1/8" | 3B | Right Hand | Grade 2 | Flexible Top | Thin Light Hex | 75 | €214.32 | |
![]() |
21FK-832 | 11/32" | 3/16" | 1/16" | 3B | Right Hand | Grade 2 | Flexible Top | Thin Light Hex | 200 | €190.30 |
Explore Products
- SPEARS VALVES 93251J850-007 Special Reinforced Diaphragm Valve, FKM, Air To Spring Close, 90 PSI, 3/4 Size, PVC
- SQUARE D HCP235912N Panelboard Interior Iline 1200A Mlo 3Ph
- INGERSOLL-RAND 95354 Clevis Bracket
- APEX-TOOLS UG-M-13MM25 Socket, Cvrd 1/2 Sqdr 13 mm Hex 57 mm Oal Mag
- BALDOR / DODGE P1X38MM-ZN BK2 Split Taper Bushing
- MAIN FILTER INC. MF0592490 Spin-On Filter, Cellulose/Water Removal, 10 Micron Rating, Buna Seal, 10.94 Inch Height
- APPROVED VENDOR WWG-TP074 Taper Pin, Std, 0.157 In Small End Dia., 3 In Lg., 0.218 In Large End Dia., 3 Pin Size
Explore More
- KEYSHAFT
- Ergonomic Workbenches
- Scrub Brushes
- Refrigerated Compressed Air Dryers
- Sensor Connectors
- Filter
- OIL SAFE Storage Lids
- CHICAGO PNEUMATIC CP7300 Series Air Drills
- TEMPCO Compression Fittings
- MUELLER INDUSTRIES 764 Carbon Steel Y Strainers
- OK INDUSTRIES Kynar Wire Wrapping Wire Rolls
- EDSAL Deckings
- ARO Mounting Brackets
- VESTIL ELH Series Economy Lever Hoists
- ARMSTRONG WORLD INDUSTRIES Motors for Circulating Pumps
- OSG High Performance Finishing Carbide Ball End Mills
Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
FLEXLOC 21FK-624 Locknut, 3/8 In - 24 Thread Size, Flexible Top, 9/16 In Hex Wd., Top Lock Jam, Gr. 2, Steel
€180.17 /pack







