5/16 in.-18 Grade 5 Zinc-Plated Flange Nu

For general applications
Use for fastening to bolt when mechanically joining materials together (bolts not included)
For use with bolts of the same diameter, thread pitch and finish (bolts not included)
Steel construction
5/16 in. inner diameter
18 thread pitch
Zinc-plating
Coarse threading
Washer-like surface includes teeth to prevent loosening from vibrations
Grade 5