M4 Lock Washers / Steel / DIN 137A
$9.99
Same-Day Shipping
Certified Specs
Volume Pricing
Product Description
M4 Lock Washers / Steel / DIN 137A
Specifications
| Material | Steel |
|---|---|
| Finish | Plain |
| Size | M4 |
| Inside Diameter | 4.1 mm |
| Outside Diameter | 7.6 mm |
| Thickness | 0.9 mm |
| Hardness | C38 - C46 |
| Standard | ASME B18.21.1 |
| RoHS Compliance | RoHS Compliant |
| Measurement System | Metric |
RoHS Compliant
Frequently Asked Questions
Are lock washers effective at preventing loosening?
Modern engineering testing shows split lock washers can actually reduce clamp load under vibration. For critical applications, use nylon insert lock nuts or thread locker (Loctite). Tooth lock washers (internal/external star) typically perform better than split washers in vibration-prone applications.
Lockwasher Steel (DIN 137A)
Family: R91
Select size and quantity, then add to cart
Loading filters...
|
Loading family products...
|
Technical Specifications
Thread Size
M4
Material
Steel
Thread Direction
Unthreaded
Outer Diameter
7.6 mm
Thickness
0.9 mm
Hardness
C38 - C46
SKU
R91040-18000