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Product Specifications:
| Item | Split Lock Washer |
| Class | Not Applicable |
| Color | Silver |
| Dimensional Standards | DIN 127 B |
| Finish | Zinc Plated |
| Fits Bolt Size | M4 |
| For Screw Size | M4 |
| Grade | Non Graded |
| Hardness | Rockwell C44-C51 |
| Inside Dia. | 4.1 mm |
| Inside Dia. Tolerance | -0.127 mm to +0.127 mm |
| Lock Washer Type | Split Lock |
| Made In North America | No |
| Material | Steel |
| Material Grade/class | Ungraded |
| Material Quality Standards | Astm A307A, Sae J429 |
| Max. Temp. | 275°F |
| Max. Thickness | 0.9 mm |
| Min. Temp. | 10°F |
| Min. Thickness | 0.9 mm |
| Outside Dia. | 7.6 mm |
| Outside Dia. Tolerance | -0.254 mm to +0.254 mm |
| Removable | Yes |
| Rockwell Hardness | C44 |
| System Of Measurement | Metric |
| Thickness | 0.9 mm |
| Thickness Tolerance | -0.1 mm to +0.1 mm |
| Type | Split Lock |
Shipping Info:
| Ship weight (kg) | 0.02 |
| Ship height (cm) | 1.27 |
| Ship length (cm) | 16.99 |
| Ship width (cm) | 16.38 |
| HS code | 7318210030 |
| Country of Origin | TW |
Product Variants
| Product | Model | Fits Bolt Size | Thickness | For Screw Size | Max. Thickness | Color | Thickness Tolerance | Min. Thickness | Inside Dia. Tolerance | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
U37020.008.0001 | #2 | 0.02" | #2 | 0.02" | - | - | 0.02" | - | 100 | €3.64 | |
![]() |
U37020.009.0001 | #3 | 0.025" | #3 | 0.025" | - | - | 0.025" | - | 100 | €3.51 | |
![]() |
U37020.011.0001 | #4 | 0.025" | #4 | 0.025" | Silver | -0.005" to +0.005" | 0.025" | -0.005" to +0.005" | 100 | €1.78 | |
![]() |
U37020.012.0001 | #5 | 0.031" | #5 | 0.031" | - | - | 0.031" | - | 100 | €2.41 | |
![]() |
U37020.175.0001 | 1 3/4" | 0.389" | 1 3/4" | 0.389" | - | - | 0.389" | - | 5 | €21.33 | |
![]() |
U37020.200.0001 | 2" | 0.422" | 2" | 0.422" | - | - | 0.422" | - | 5 | €29.08 | |
![]() |
U37171.011.0001 | #4 | 0.034" | #4 | 0.034" | - | - | 0.034" | - | 100 | €7.93 |
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APPROVED VENDOR M37020.040.0001 Split Lock Washer, M4 Fits Bolt Size, 7.6 mm O.D., 4.1 mm I.D., Steel
€1.61 /pack







