Midwest Fastener 1/2 in.-20 Grade 8 Fine Lock Nut

Designed for heavy-duty fastening applications, this Midwest Fastener lock nut provides reliable holding power under vibration and stress. Constructed from Grade 8 steel and finished with yellow zinc for enhanced corrosion resistance, it is built to withstand rigorous mechanical use. Ideal for automotive, industrial, and agricultural hardware repairs, this fine thread lock nut ensures a secure and lasting connection on compatible threaded bolts and studs.