18-8 Stainless Steel Locknut with External-Tooth Lock Washer
M3 x 0.5 mm Thread Size
Thread Direction | Right Hand |
Hex Nut Profile | Standard |
Locking Type | Lock Washer |
Tooth Location | External |
Washer Type | Tooth |
Finished Material | 18-8 Stainless Steel |
Thread Size | M3 |
Thread Pitch | 0.5 mm |
Width | 5.5 mm |
Height | 3.3 mm |
Washer | |
OD | 6.5 mm |
Material | 400 Series Stainless Steel |
Certificate Form | Digital |
Certificate Type | Material Certificate with Traceable Lot Number |
Drive Style | External Hex |
Nut Type | Hex, Locknut |
Performance | Vibration Resistant, Corrosion Resistant |
System of Measurement | Metric |
Thread Fit | Metric Class 6H |
Thread Spacing | Coarse |
Thread Type | Metric |
Country of Origin | China, Taiwan |
DFARS Compliance | Not Specialty Metals Compliant |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (01/21/2025, 247 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 731816.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
To save on assembly time, these locknuts combine a hex nut with a free-spinning lock washer, so you can twist them into place by hand. Once the nut is against your material surface, tighten it down with a wrench or socket to get the teeth to bite. Although these nuts install more quickly than nylon-insert locknuts, they don't hold up as well against vibration and can mar your material. As long as the washer stays intact, you can reuse them. Also known as Keps and K-lock nuts.
18-8 Stainless Steel—The choice for wet and outdoor environments, these locknuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
The information in this 3-D model is provided for reference only.