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Product Specifications:
| Item | Lock Washer |
| Class | Not Applicable |
| Dimensional Standards | Asme B18.21.1 |
| Finish | Black Oxide |
| Fits Bolt Size | 5/16" |
| For Screw Size | 5/16" |
| Grade | Non Graded |
| Hardness | Rockwell C40-C50 |
| Lock Washer Type | Internal Tooth Lock |
| Material | Steel |
| Material Grade/class | Ungraded |
| Max. Thickness | 1/25" |
| Outside Dia. | 0.59" |
| System Of Measurement | Imperial |
| Thickness | 1/25" |
| Type | Internal Tooth Lock |
Shipping Info:
| Ship weight (kg) | 0.06 |
| Ship height (cm) | 1.27 |
| Ship length (cm) | 16.99 |
| Ship width (cm) | 16.38 |
| HS code | 7318210090 |
| Country of Origin | TW |
Product Variants
| Product | Model | Fits Bolt Size | Thickness | For Screw Size | Max. Thickness | Hardness | Dimensional Standards | Material Grade/class | Color | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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U37320.025.0001 | 1/4" | 0.035" | 1/4" | 0.035" | Rockwell C40-C50 | Asme B18.21.1 | Ungraded | - | 100 | €26.27 | |
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U37320.050.0001 | 1/2" | 0.055" | 1/2" | 0.055" | Rockwell C40-C50 | Asme B18.21.1 | Ungraded | - | 25 | €19.66 | |
![]() |
U37320.062.0001 | 5/8" | 0.059" | 5/8" | 0.059" | Rockwell C40-C50 | Asme B18.21.1 | Ungraded | - | 10 | €31.59 | |
![]() |
U37320.075.0001 | 3/4" | 0.071" | 3/4" | 0.07" | Rockwell C40-C50 | Asme B18.21.1 | Ungraded | - | 10 | €54.95 | |
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U37320.037.0001 | 3/8" | 0.042" | 3/8" | 0.042" | Rockwell C40-C50 | Asme B18.21.1 | Ungraded | - | 50 | €39.24 | |
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M37320.120.0001 | M12 | 1 mm | M12 | 1 mm | Rockwell C35-C42 | Din 6797 J | Ungraded | - | 50 | €14.69 | |
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B37320.025.0001 | #6 | 0.035" | - | - | - | - | - | - | 37000 | €8,976.00 |
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APPROVED VENDOR U37320.031.0001 Lock Washer, 5/16 In Fits Bolt Size, Int. Tooth Lock, 0.59 In O.D., Plain, Steel
€58.48 /pack







