Washers

Shaft Retaining Rings

We make our Shaft Retaining Rings from 65MN high carbon spring steel. We also offer 304 and 316 stainless steel for wet or coastal areas. The 65MN steel has a hardness of HRC 44-51. It meets the ISO

High Tensile Spring Washer

We take an M10 size as an example. We press the washer flat. It still gives at least 150 N of recovery force. We also did a transverse vibration test. It follows the ISO 16130 standard. The residual

Precision Flat Washers

We take an M10 flat washer as an example. Its outer diameter is φ20 mm. The pressure area goes up by 2.5 times compared to the nut bearing surface. This means your aluminum or plastic parts will not

National Disc Spring

We take a φ16×φ8.2×2mm size as an example. You press it flat. The load reaches at least 2500 N. This is much higher than a regular spring washer of the same size. Our hardness is HRC 44-49. The

Non-standard Gaskets

We follow the ASTM B117 standard for neutral salt spray tests. Our gaskets last 720 hours with no red rust. This meets marine equipment needs. The minimum thickness is 0.3 mm. The maximum outer

Safety Lock Washer

We take a φ20 mm size as an example. After bending the tab, the anti-loosening torque reaches at least 50 N·m. This force is much higher than any friction lock washer. The size range is φ3 mm to φ60