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Product Specifications:
| Item | Lock Nut |
| Finish | Black Oxide |
| Grade | Grade 2 |
| Hex Height | 13/64" |
| Hex Type | Standard Light Hex |
| Hex Width | 5/8" |
| Lock Type | Flexible Top |
| Material | Steel |
| Material Grade/class | Grade 2 |
| Max. Temp. | 1200°F |
| Min. Temp. | -70°F |
| Nut Height | 0.462" |
| Nut Type | Top Lock |
| Nut Type | Flexible Top |
| Removable | Yes |
| Resistance Properties | Impact Resistant, Shock And Vibration Resistant, Temperature Resistant |
| System Of Measurement | Imperial |
| Thread Direction | Right Hand |
| Thread Fit | 3B |
| Thread Size | 7/16"-20 |
| Type | Top Lock |
Shipping Info:
| Ship weight (kg) | 0.45 |
| Ship height (cm) | 3.06 |
| Ship length (cm) | 4.13 |
| Ship width (cm) | 4.13 |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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20FA-420 | 7/16" | 0.29" | 1/8" | 2B | Right Hand | Grade 2 | Flexible Top | Standard Light Hex | 100 | €155.77 | |
![]() |
20FA-518 | 9/16" | 0.321" | 7/64" | 2B | Right Hand | Grade 2 | Flexible Top | Standard Light Hex | 100 | €244.64 | |
![]() |
20FAF-518 | 1/2" | 0.353" | 5/32" | 2B | Right Hand | Grade 2 | Flexible Top | Standard Light Hex | 100 | €315.47 | |
![]() |
20FC-1032 | 3/8" | 0.243" | 5/64" | 3B | Right Hand | Grade 2 | Flexible Top | Standard Light Hex | 100 | €141.69 | |
![]() |
20FC-428 | 7/16" | 8/25" | 9/64" | 3B | Right Hand | Grade 2 | Flexible Top | Standard Light Hex | 100 | €128.87 | |
![]() |
20FC-524 | 1/2" | 0.353" | 5/32" | 3B | Right Hand | Grade 2 | Flexible Top | Standard Light Hex | 100 | €244.86 | |
![]() |
20FC-624 | 9/16" | 0.462" | 13/64" | 3B | Right Hand | Grade 2 | Flexible Top | Standard Light Hex | 100 | €190.14 |
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FLEXLOC 20FC-720 Locknut, 7/16 In - 20 Thread Size, Flexible Top, 5/8 In Hex Wd., Top Lock, Gr. 2
€126.51 /pack







