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Product Specifications:
| Item | Hex Locknut |
| Class | Not Applicable |
| Color | Silver |
| Dimensional Standards | Asme 18.2.1, Asme B18.16.6 |
| Finish | Plain |
| Grade | Grade 316 |
| Hardness | Rockwell B80-C32 |
| Hex Height | 11/32" |
| Hex Type | Standard Hex |
| Hex Width | 1/2" |
| Insert Material | Nylon |
| Lock Type | Nylon Insert |
| Made In North America | No |
| Material | Stainless Steel |
| Material Grade/class | 316 |
| Material Quality Standards | Astm A307A |
| Maximum Temperature | 302°F |
| Minimum Temperature | -58°F |
| Minimum Yield Strength | 800 N/sq. mm |
| Nut Height | 11/32" |
| Nut Type | Nylon Insert Lock Nut |
| Nut Type | Nylon Insert |
| Reach Compliant | Yes |
| Removable | Yes |
| Resistance Properties | High Temperature Resistant |
| Rohs Compliant | Yes |
| System Of Measurement | Imperial |
| Temp. Range | -0°F to +250°F |
| Thread Direction | Right Hand |
| Thread Fit | 2B |
| Thread Pitch | 18" |
| Thread Size | 5/16"-18 |
| Thread Type | Coarse |
| Type | Standard Hex |
Shipping Info:
| Ship weight (kg) | 0.27 |
| Ship height (cm) | 1.27 |
| Ship length (cm) | 16.99 |
| Ship width (cm) | 16.99 |
| HS code | 7318160060 |
| Country of Origin | CN |
Product Variants
| Product | Model | Thread Size | Hex Width | Hex Height | Nut Height | Hardness | Temp. Range | Hex Type | Insert Material | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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U55730.025.0001 | 1/4"-20 | 7/16" | 5/16" | 5/16" | Rockwell B80-C32 | -0°F to +250°F | Standard Hex | Nylon | 50 | €11.32 | |
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U55730.050.0001 | 1/2"-13 | 3/4" | 19/32" | 19/32" | Rockwell B80-C32 | -0°F to +250°F | Standard Hex | Nylon | 10 | €10.48 | |
![]() |
U55730.011.0001 | #4-40 | 1/4" | 5/32" | 5/32" | Rockwell B80-C32 | -58°F to +302°F | Standard Hex | - | 50 | €4.72 | |
![]() |
U55730.013.0001 | #6-32 | 5/16" | 3/16" | 3/16" | Rockwell B80-C32 | -58°F to +302°F | Standard Hex | - | 50 | €6.08 | |
![]() |
U55730.016.0001 | #8-32 | 11/32" | - | 15/64" | Rockwell B80-C32 | -58°F to +302°F | - | - | 50 | €8.32 | |
![]() |
U55730.019.0001 | #10-24 | 3/8" | 15/64" | 15/64" | Rockwell B80-C32 | -58°F to +302°F | Standard Hex | - | 50 | €9.57 | |
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U55730.037.0001 | 3/8"-16 | 9/16" | 15/32" | 15/32" | Rockwell B80-C32 | -58°F to +302°F | Standard Hex | Nylon | 50 | €29.23 |
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APPROVED VENDOR U55730.031.0001 Hex Locknut, 5/16 In - 18 Thread Size, Nylon Insert, 1/2 In Hex Wd., Std Hex, Gr. 316
€18.54 /pack





