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Product Specifications:
| Item | Split Lock Washer |
| Class | Not Applicable |
| Color | Black |
| Dimensional Standards | DIN 127 B |
| Finish | Black Oxide |
| Fits Bolt Size | M12 |
| For Screw Size | M12 |
| Grade | Non Graded |
| Hardness | Rockwell C44-C51 |
| Inside Dia. | 12.2 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 | 2.5 mm |
| Min. Temp. | 10°F |
| Min. Thickness | 2.5 mm |
| Outside Dia. | 21.1 mm |
| Outside Dia. Tolerance | -0.254 mm to +0.254 mm |
| Removable | Yes |
| Rockwell Hardness | C44 |
| System Of Measurement | Metric |
| Thickness | 2.5 mm |
| Thickness Tolerance | -0.127 mm to +0.127 mm |
| Type | Split Lock |
Shipping Info:
| Ship weight (kg) | 0.19 |
| 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 | Thickness Tolerance | Min. Thickness | Inside Dia. Tolerance | Outside Dia. Tolerance | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
U37000.008.0001 | #2 | 0.02" | #2 | 0.02" | - | 0.02" | - | - | 100 | €3.50 | |
![]() |
U37000.009.0001 | #3 | 0.025" | #3 | 0.025" | - | 0.025" | - | - | 100 | €3.75 | |
![]() |
U37000.011.0001 | #4 | 0.025" | #4 | 0.025" | - | 0.025" | - | - | 100 | €1.25 | |
![]() |
U37000.012.0001 | #5 | 0.031" | #5 | 0.031" | - | 0.031" | - | - | 100 | €2.81 | |
![]() |
U37000.013.0001 | #6 | 0.031" | #6 | 0.031" | - | 0.031" | - | - | 100 | €1.48 | |
![]() |
U37000.016.0001 | #8 | 1/25" | #8 | 1/25" | - | 1/25" | - | - | 100 | €1.92 | |
![]() |
U37000.019.0001 | #10 | 0.047" | #10 | 0.047" | - | 0.047" | - | - | 100 | €2.24 |
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APPROVED VENDOR M37000.120.0001 Split Lock Washer, M12 Fits Bolt Size, 21.1 mm O.D.
€3.99 /pack







