Use and Care Manual
53
Concrete & Masonry
Copyright © 2020 MiTek Industries, Inc. All Rights Reserved
Concrete & Masonry
MiTek
®
Product Catalog
CNW Coupler Nuts
The MiTek CNW coupler nut is designed to join threaded rods to embedded anchor rods. They
are also used in the Z4 Tie Down system to attach Z-Rods together (See Z4 Product Catalog).
The coupler nut has an inspection hole with an internal positive stop that allows easy
verication that the ends of both rods have been fully threaded. The CNW coupler is made
from low carbon ASTM A563 Grade A steel (Proof Load = 90 ksi) which makes it applicable
for many common ASTM steel threaded rods of equivalent or lower strength.
Materials: ASTM A563 Grade A
Finish: Zinc Plated
Installation:
• Inspection hole is provided to assure easy inspection.
• Tighten rods until they are visible in the inspection hole.
• Works with all thread rods of specied diameter except hot-dip galvanized.
Washers are an important component of a threaded rod assembly and should be
properly sized for the intended application. They distribute load from the tightened
nut and reduce bearing stresses to prevent crushing of the supporting material.
This is especially important when tightening over wood.
Materials: ASTM/ANSI B18.22
Finish: None or Zinc Plated (See Chart)
RW Round Washers
Finish Ref. No.
RW38 -- 0.375
RW12 -- 0.500
RW58 -- 0.625
RW34 -- 0.750
RW78 -- 0.875
RW1 -- 1.000
RW118 -- 1.125
RW38-ZP -- 0.375
RW12-ZP WASHER1/2-ZP 0.500
RW58-ZP WASHER5/8-ZP 0.625
RW34-ZP WASHER3/4-ZP 0.750
RW78-ZP WASHER7/8-ZP 0.875
RW1-ZP WASHER1-ZP 1.000
RW118-ZP WASHER1-1/8-ZP 1.125
Zinc
Plated
--
Dia.
(in)
Code
Ref.
MiTek USP
Stock No.
None
Ref. No. 100%
CNW38-ZP CNW3/8 0.375 1-1/8 2400
CNW12-ZP CNW1/2 0.500 1-1/4 4265
CNW58-ZP CNW5/8 0.625 2-1/8 6675
CNW34-ZP CNW3/4 0.750 2-1/4 9610
CNW78-ZP CNW7/8 0.875 2-1/2 13080
CNW1-ZP CNW1 1.000 2-3/4 17080
CNW118-ZP -- 1.125 3 21620
New
p
roducts or u
p
dated
p
roduct information are desi
g
nated in blue font.
MiTek USP
Stock No.
Code
Ref.
H
Min
Allowable
Tension (Lbs.)
--
Rod
Diameter
Dimensions (in)
RW
CNW
Typical CNW
installation
H min.
Inspection hole