McMaster 97135A250 High-Strength Steel Nylon-Insert Locknut, Pack of 10, Grade 8, Zinc Yellow-Chromate Plated, 1/2"-13 Thread
Original price
$47.31
-
Original price
$47.31
Original price
$47.31
$47.31
-
$47.31
Current price
$47.31
Versatile yet economical, these are the most commonly used locknuts. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
High-Strength Steel — Rated Grade 8, Grade C, or Class 10, these locknuts are about 25% stronger than medium-strength steel nuts.
Zinc-Yellow-Chromate-Plated Steel — More durable finish than clear zinc plating, suitable for most wet and outdoor environments.
| Thread Direction | Right Hand |
| Hex Nut Profile | Standard |
| Locking Type | Nylon Insert |
| Fastener Strength Rating | High |
| Finished Material | Zinc-Yellow-Chromate-Plated Steel |
| Thread Size | 1/2"-13 |
| Width | 3/4" |
| Height | 19/32" |
| Fastener Strength Grade/Class | SAE Grade 8 |
| Insert Maximum Temperature | 185° F |
| Drive Style | External Hex |
| Nut Type | Hex, Locknut |
| Performance | Vibration Resistant, High Strength |
| System of Measurement | Inch |
| Pack Size | 10 per pack |
| Country of Origin | Taiwan |
| DFARS Compliance | Not Specialty Metals Compliant |
| 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 |