Product Description
Simpson CNW1-7/8 CNW 1 in. to 7/8 in. Coupler Nut with Witness Hole by Simpson Strong-Tie is engineered to connect threaded rods to one another and to anchor bolts. Designed to exceed the specified minimum tensile capacity of the corresponding bolts and threaded rod, this coupler nut features a positive stop for even thread engagement and a Witness hole to verify proper rod installation.
Key Features
- Tighten the two rods until each all-thread rod is visible in the Witness hole
- For non-hot-dip galvanized all-thread rod only
- Rod diameter: 1 in. to 7/8 in.
- Height (min.): 2-3/8 in.
- Positive stop feature helps ensure even threading into each end of the nut
- Witness hole provides a reliable means to verify when rods are properly installed
- Designed to exceed the specified minimum tensile capacity of corresponding bolts and threaded rod
Specifications
- MPN: CNW1-7/8
- Brand: Simpson Strong-Tie
- Bolt/Rod Diameter: 1 in. to 7/8 in.
- Height (min.): 2-3/8 in.
- Coating: Zinc Plated or Uncoated
- Finish: Zinc Plated or Uncoated
- Country of Origin: Taiwan
Options
- Available in standard strength and high strength depending on corresponding rod in use
- Couplers available with oversized threads on one end for installation on hot-dip galvanized bolts (See OST models for ordering)
- OST couplers are typically oversized on one end of the coupler nut only and will be marked with an "O" on oversized side
Frequently Asked Questions
- How do I know when the threaded rods are properly installed in the CNW1-7/8 coupler nut?
- The CNW1-7/8 features a Witness hole that allows you to visually confirm correct installation. Tighten the two rods until each all-thread rod is visible through the Witness hole, confirming that both rods are fully and evenly engaged inside the nut.
- What type of threaded rod is the CNW1-7/8 compatible with?
- The CNW1-7/8 is designed for use with non-hot-dip galvanized all-thread rod only. For use with hot-dip galvanized bolts, refer to the OST coupler models, which feature oversized threads on one end.
- What rod diameters does the CNW1-7/8 accommodate?
- The CNW1-7/8 coupler nut is designed to connect a 1 in. diameter threaded rod on one end to a 7/8 in. diameter threaded rod on the other end, making it suitable for transitioning between these two rod sizes.
- What does the positive stop feature do on the CNW1-7/8?
- The positive stop is a built-in design element that helps ensure even threading into each end of the coupler nut. It prevents over-insertion of either rod, promoting balanced and secure thread engagement on both sides of the connection.
Note: Product dimensions and/or Screw or Bolt holes may differ from picture. Please see item description for specifications.
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