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CNW/HSCNW Coupler Nuts

CNW/HSCNW

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Nuts and Couplers

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Simpson Strong-Tie® coupler nuts are a tested and load-rated method to join threaded rod and anchor bolts. The Witness Hole™ in each nut provides a means to verify when rods are properly installed. The positive stop feature helps ensure even threading into each end of the nut. The CNW exceeds the specified minimum tensile capacity of corresponding ASTM A36 bolts and threaded rod. The HSCNW exceeds the specified minimum tensile capacity of corresponding ASTM A449 bolts and threaded rod. Contact Simpson Strong-Tie for other coupler nut sizes.

Finish

  • Zinc plated

Installation

  • Tighten the two rods until each all-thread rod is visible in the Witness Hole. Any portion of thread visible in the Witness Hole is a correct installation.
  • Standard CNW for use with non-hot-dip galvanized all-thread rod only.
  • 5/8"- and 7/8"-diameter couplers available with oversized threads for installation to hot-dip galvanized bolts (order CNW5/8-5/8OST and CNW7/8-7/8OST).
  • Some OST couplers are typically oversized on one end of the coupler nut only and will be marked with an "O" on oversized side. Couplers may be oversized on both ends. Contact Simpson Strong-Tie to order.

Related Literature

Load Tables

  1. Allowable loads shown are based on AISC 360 for A36 and A449 (HS) threaded rods.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
CNWSee specific model numbers for code listings.
CNW-OST No evaluation report listing.
CNW1No evaluation report listing.
CNW1-1/4 No evaluation report listing.
CNW1-7/8No evaluation report listing.
CNW1/2 ESR-1161 FL15957
CNW3/4 ESR-1161 FL15957
CNW3/4-5/8 ESR-1161 FL15957
CNW5/8 ESR-1161 FL15957
CNW5/8-1/2 ESR-1161 FL15957
CNW7/8No evaluation report listing.
CNW7/8-5/8No evaluation report listing.
HSCNW No evaluation report listing.
HSCNW1No evaluation report listing.
HSCNW3/4No evaluation report listing.

Drawings

Part Orthographic Perspective
CNWNone None
CNW-OSTNone None
CNW1
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CTDS All Series Perspective View - Canadian ATS CTDS All Series
DWG DXF
CNW1-1/4None None
CNW1-7/8
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CNW1/2
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CNW3/4
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CTDS All Series Perspective View - Canadian ATS CTDS All Series
DWG DXF
CNW3/4-5/8
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CNW5/8
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CTDS All Series Perspective View - Canadian ATS CTDS All Series
DWG DXF
CNW5/8-1/2
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CNW7/8
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
CNW7/8 Installed Perspective View - Canadian ATS CTDS All Series
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
CNW7/8-5/8
Floor Level Installed
DWGDXF
CNW1 Installed Perspective View
DWG DXF
High Wind Resistant Construction Detail D38: Hollow Column - HWRC D38 Hollow Column All Thread Rod Configuration Installation
DWG DXF
High Wind Resistant Construction Detail D115: Strong-Rod™ Uplift Restraint System - HWRC D115 Uplift Rod System
DWG DXF
HSCNWNone None
HSCNW1
Floor Level Installed
DWGDXF
None
HSCNW3/4
Floor Level Installed
DWGDXF
None