National Hardware's 1" Zinc Coupler is designed to connect two pieces of threaded rod. UNC coarse thread sizes. Larger couplers come with "witness holes" to confirm rods are threaded together completely. For interior and exterior applications. Safe working load of 12,000 lbs.
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National Hardware's 1" Zinc Coupler is designed to connect two pieces of threaded rod. UNC coarse thread sizes. Larger couplers come with "witness holes" to confirm rods are threaded together completely. For interior and exterior applications. Safe working load of 12,000 lbs.
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