Product Description
Simpson CNW1 CNW 1 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 1-inch coupler nut features a positive stop for reliable thread engagement and a Witness hole to verify when rods are properly installed.
Key Features
- Tighten the two rods until each all-thread rod is visible in the Witness hole
- Positive stop feature that helps ensure proper thread engagement into each end of the nut
- For non-hot-dip galvanized all-thread rod only
- Rod diameter: 1 in.
- Height (min.): 2-1/4 in.
Specifications
- Manufacturer: Simpson Strong-Tie
- MPN: CNW1
- Bolt/Rod Diameter: 1 in.
- Height (min.): 2-1/4 in.
- Coating/Finish: Zinc Plated or Uncoated
- Country of Origin: China
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
- What is the purpose of the Witness hole on the CNW1 coupler nut?
- The Witness hole serves as a visual verification point. When the two threaded rods are tightened until each all-thread rod is visible in the Witness hole, installers can confirm that the rods are properly installed and fully engaged within the nut.
- What does the positive stop feature do?
- The positive stop feature helps ensure even and proper thread engagement into each end of the nut, providing a built-in reference point that promotes consistent installation and helps prevent under-threading.
- Is the Simpson CNW1 compatible with hot-dip galvanized all-thread rod?
- No. The CNW1 coupler nut is designed for non-hot-dip galvanized all-thread rod only. For use with hot-dip galvanized bolts or rods, see the OST model variants, which feature oversized threads on one end.
- What finish options are available for the CNW1?
- The CNW1 coupler nut is available in either a Zinc Plated or Uncoated finish.
Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.
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