COUPLER NUT ZINC 5/16-18 Call for Price  Quantity Available: 43   Call for Price

- Designed to connect two pieces of threaded rod
- Larger couplers come with "witness holes" to confirm rods are threaded together completely
- UNC coarse thread sizes

SKU: N182675
Manufacturer: NATIONAL MFG. CO.
Manufacturer Part #: 4003BC