Muncy Machine and Upson-Walton

Muncy™ Common Buttons

Muncy CB Buttons from Premium Steel Made in USA

Muncy carbon steel buttons (also called “ferrules”, “stops”, “ends”, etc.) are made from a special grade of steel specifically for swaging. Muncy tracks its steel from the mills to make sure mill certifications comply with Muncy specifications and requirements. Among our most important requirement is that the steel is Made In USA, a requirement that goes to quality and Muncy’s dedication to being a domestic supplier.

Common "CB" Button Diagram

Also known as "Ferrules", "Button Stops", "Dead Ends", "Plugs", etc.

All Muncy Machine and Tool™ fittings are machined from carbon steel specially selected for swaging. Aluminum and stainless steel available upon request.

Stock No. Rope
After Swage Dimensions Weight
Min Nominal Max Approx.
CB-4 1/8 0.240 0.250 0.260 0.625 0.01
CB-6 3/16 0.365 0.375 0.400 0.813 0.02
CB-8 1/4 0.490 0.500 0.520 1.125 0.06
CB-10 5/16 0.615 0.625 0.635 1.250 0.08
CB-14 7/16 0.855 0.875 0.895 1.750 0.24
CB-16 1/2 0.980 1.000 1.030 1.875 0.34
CB-18 9/16 1.105 1.125 1.160 1.500 0.34
CB-36 1-1/8 2.220 2.250 2.300 5.000 4.60


CB Buttons are recommended for use on 6 x 19 or 6 x 37 IPS or XIP, EIP, RRL, or IWRC wire ropes. Not all CB Buttons are designed to hold the breaking strength of the wire rope. Before using a CB Button for any type lay, construction or grade of wire rope, it is recommended that the termination be proofloaded to prove adequacy of the assembly. Item numbers are designed to indicate the wire rope size for the particular fitting. For instance, a CB-8 is for 8/32", or 1/4", wire rope.Proper swaging practices are the sling manufacturer’s responsibility.