Top-Lock Distorted-Thread Locknut
Zinc Yellow-Chromate Plated Steel, M12 x 1.5 mm Thread







Thread Direction | Right Hand |
Hex Nut Profile | Standard |
Distorted Thread Type | Top Lock |
Locking Type | Distorted Thread |
Fastener Strength Rating | High |
Finished Material | Zinc-Yellow-Chromate-Plated Steel |
Thread Size | M12 |
Thread Pitch | 1.5 mm |
Width | 19 mm |
Height | 12 mm |
Fastener Strength Grade/Class | Class 10 |
Certificate Form | Digital |
Certificate Type | Material Certificate with Traceable Lot Number |
Drive Style | External Hex |
Nut Type | Hex, Locknut |
Performance | Vibration Resistant, High Strength |
System of Measurement | Metric |
Thread Fit | Metric Class 6H |
Thread Spacing | Fine |
Thread Type | Metric |
Country of Origin | Taiwan |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | Not Compliant |
RoHS Compliance | Not Compliant |
Schedule B Number | 731816.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
Irregularly shaped threads at the top of these locknuts grip the screw for a stronger hold than nylon-insert locknuts. Although the threads prevent the nut from backing out due to vibration, they also increase the effort to install and remove. To get these nuts off, you may need special tools, such as an impact wrench or propane torch. Nuts are not reusable.
High-Strength Steel—Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
The information in this 3-D model is provided for reference only.



























