Product Description
Simpson CNW3/8 CNW 3/8 in. Coupler Nut with Witness Hole is a Simpson Strong-Tie engineered fastener designed to connect threaded rods to one another and to anchor bolts. Built to exceed the specified minimum tensile capacity of corresponding bolts and threaded rod, this coupler nut features a positive stop for even thread engagement and a Witness hole to verify correct rod installation.
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: 3/8 in.
- Height (min.): 1 in.
Specifications
- MPN: CNW3/8
- Brand: Simpson Strong-Tie
- Bolt/Rod Diameter: 3/8 in.
- Height (min.): 1 in.
- Coating: Zinc Plated or Uncoated
- 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 1/2OST 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 rods are properly installed in the CNW3/8 coupler nut?
- The CNW3/8 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, which serves as a means to verify when rods are properly installed.
- What is the purpose of the positive stop feature on the CNW3/8?
- The positive stop feature helps ensure even and proper thread engagement into each end of the nut, providing consistent and reliable rod-to-rod or rod-to-anchor-bolt connections.
- Can the CNW3/8 coupler nut be used with hot-dip galvanized all-thread rod?
- No. The CNW3/8 is for non-hot-dip galvanized all-thread rod only. For use with hot-dip galvanized bolts, see the OST coupler nut models, which feature oversized threads on one end.
- What rod diameter is the CNW3/8 designed for?
- The CNW3/8 is designed for a rod diameter of 3/8 in. and has a minimum height of 1 in. It is engineered to exceed the specified minimum tensile capacity of the corresponding bolts and threaded rod.
Note: Product dimensions and/or Screw or Bolt holes may differ from picture. Please see item description for specifications.
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