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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 18-8 |
| Hex Height | 15/32" |
| Hex Type | Heavy Hex |
| Hex Width | 11/16" |
| Insert Material | Nylon |
| Lock Type | Nylon Insert |
| Made In North America | No |
| Material | Stainless Steel |
| Material Grade/class | 18-8 |
| Material Quality Standards | Astm A307A |
| Maximum Temperature | 302°F |
| Minimum Temperature | -58°F |
| Minimum Yield Strength | 700 N/sq. mm |
| Nut Height | 15/32" |
| 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 |
| Thread Direction | Right Hand |
| Thread Fit | 2B |
| Thread Pitch | 16" |
| Thread Size | 3/8"-16 |
| Thread Type | Coarse |
| Type | Heavy Hex |
Shipping Info:
| Ship weight (kg) | 0.85 |
| Ship height (cm) | 1.27 |
| Ship length (cm) | 16.99 |
| Ship width (cm) | 16.99 |
| HS code | 7318160085 |
| Country of Origin | TW |
Product Variants
| Product | Model | Thread Size | Hex Width | Hex Height | Nut Height | Hex Type | Color | Hardness | Insert Material | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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U51718.025.0001 | 1/4"-20 | 1/2" | 3/8" | 3/8" | Heavy Hex | White | - | Nylon | 50 | €40.82 | |
![]() |
U51718.031.0001 | 5/16"-18 | 9/16" | 23/64" | 23/64" | Heavy Hex | White | - | Nylon | 50 | €12.76 | |
![]() |
U51718.062.0001 | 5/8"-11 | 1 1/16" | 7/8" | 7/8" | Heavy Hex | White | - | Nylon | 10 | €70.70 | |
![]() |
U51718.075.0001 | 3/4"-10 | 1 1/4" | 1" | 1" | Heavy Hex | - | - | - | 5 | €393.32 | |
![]() |
U51718.087.0001 | 7/8"-9 | 1 7/16" | 1 3/32" | 1.1" | Heavy Hex | - | - | - | 5 | €687.22 | |
![]() |
U51718.100.0001 | 1"-8 | 1 5/8" | 1 1/8" | 1 1/8" | Heavy Hex | - | - | - | 5 | €89.47 | |
![]() |
U51705.025.0001 | 1/4"-20 | 1/2" | 1/4" | 1/4" | Heavy Jam Hex | - | - | - | 50 | €37.69 |
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APPROVED VENDOR U51718.037.0001 Hex Locknut, 3/8 In - 16 Thread Size, Nylon Insert, 11/16 In Hex Wd., Heavy Hex, Gr. 18-8
€22.64 /pack



