Free Shipping Over $199

Simpson Anchors  |  SKU: CNW1-7/8  |  Barcode: 707392551201

Simpson Strong-Tie CNW1-7/8 (1 in. to 7/8 in.) Coupler Nut with Witness Hole for Threaded Rod Connection

$15.61
Shipping calculated at checkout.

Bulk Pricing Available

Need to place a large order? Request a quote

Key Specifications

Diameter: 1-7/8"
Type: Coupler Nut

Description

Simpson Strong-Tie CNW1-7/8 Description

The CNW1-7/8 Coupler Nut by Simpson Strong-Tie is designed for securely connecting threaded rods of differing diameters, featuring a witness hole for installation verification and a zinc-plated finish for corrosion resistance.

Simpson Strong-Tie CNW1-7/8 Includes

  • (1) CNW1-7/8 Coupler Nut

Simpson Strong-Tie CNW1-7/8 Features

  • Witness hole for installation verification
  • Positive stop for proper thread engagement
  • Zinc-plated finish for corrosion resistance
  • Designed for connecting threaded rods of differing diameters

Simpson Strong-Tie CNW1-7/8 Applications

  • Connecting threaded rods in construction projects
  • Structural applications requiring secure rod connections
  • Renovation projects involving differing rod diameters

Simpson Strong-Tie CNW1-7/8 Installation Overview

  1. Tighten the rods until threads are visible in the witness hole.
  2. Thread the coupler onto the larger rod first, then the smaller rod.
  3. Ensure proper thread engagement into each end of the nut.

Simpson Strong-Tie CNW1-7/8 Specifications

Diameter 1" - 7/8"
Accepts rod size 1" - 7/8"
Allowable Tension Load 13,080 lbs
Height 2-1/4"
Finish Zinc Plated or Uncoated

NOTE: Ensure proper installation by tightening the rods until threads are visible in the witness hole.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

  • 400K Square Feet of Warehouse Space

    With over 400,000 square feet of warehouse space, Total Fastening is built for speed and scale. We are a full service retailer of Simpson Strong-Tie anchors, connectors, and structural solutions - so you get what you need, when you need it.

  • Real Support from Industry Pros

    When you call Total Fastening, you’re talking to experienced professionals—not a call center. Our team understands the products and the jobsite demands. Whether it’s a spec check or a bulk quote, we deliver answers fast and service you can count on.

  • Contractor Partner

    From one-man crews to large-scale builders, our sales team is on hand to support contractors at every level. Need bulk pricing? Bidding a job? Our team works directly with you to quote high-volume orders, assist with material lists, and keep your projects on schedule. We know what’s at stake when time and accuracy matter.