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Product Specifications:
| Item | Lock Washer |
| Class | Not Applicable |
| Dimensional Standards | Din 6798 A |
| Finish | Zinc Plated |
| Fits Bolt Size | M4 |
| For Screw Size | M4 |
| Grade | Non Graded |
| Hardness | Rockwell C38-C46 |
| Inside Dia. | 4.3 mm |
| Lock Washer Type | External Tooth Lock |
| Material | Steel |
| Material Grade/class | Ungraded |
| Max. Thickness | 0.5 mm |
| Outside Dia. | 8 mm |
| Rockwell Hardness | C38 to C46 |
| System Of Measurement | Metric |
| Thickness | 0.5 mm |
| Type | External Tooth 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 | 7318210090 |
| Country of Origin | TW |
Product Variants
| Product | Model | Fits Bolt Size | Thickness | For Screw Size | Max. Thickness | Thickness Tolerance | Lock Washer Type | Hardness | Rockwell Hardness | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
U37420.037.0001 | 3/8" | 0.032" | 3/8" | 0.032" | - | External Tooth Lock | Rockwell C40-C50 | C40 to C50 | 50 | €5.09 | |
![]() |
U37420.043.0001 | 7/16" | 0.032" | 7/16" | 0.032" | - | External Tooth Lock | Rockwell C40-C50 | C40 to C50 | 25 | €3.07 | |
![]() |
U37420.050.0001 | 1/2" | 0.037" | 1/2" | 0.037" | - | External Tooth Lock | Rockwell C40-C50 | C40 to C50 | 25 | €4.30 | |
![]() |
U37420.056.0001 | 9/16" | 0.037" | 9/16" | 0.037" | - | External Tooth Lock | Rockwell C40-C50 | C40 to C50 | 25 | €5.88 | |
![]() |
U37420.062.0001 | 5/8" | 0.042" | 5/8" | 0.042" | - | External Tooth Lock | Rockwell C40-C50 | C40 to 50 | 10 | €3.50 | |
![]() |
U37420.075.0001 | 3/4" | 0.047" | 3/4" | 0.047" | - | External Tooth Lock | Rockwell C40-C50 | C40 to C50 | 10 | €5.08 | |
![]() |
M37420.030.0001 | M3 | 0.4 mm | M3 | 0.4 mm | - | External Tooth Lock | Rockwell C38-C46 | C38 to C46 | 100 | €6.93 |
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APPROVED VENDOR M37420.040.0001 Lock Washer, M4 Fits Bolt Size, External Tooth Lock, 8 mm O.D.
€7.30 /pack







