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What is Nypatch®?

Nypatch Screw Coating

Nypatch® provides even seating of the screw, repeated screw installations and prevents galling.

Nypatch® is Ruland Manufacturing’s proprietary anti-vibration coating applied to hardware supplied with clamp type rigid couplings and F-series beam couplings. Nypatch® provides even seating of the screw, prevents galling, and allows for repeated screw installations to increase holding power and coupling performance.

The application of Nypatch® on Ruland hardware saves a considerable amount of time and energy in applications that would otherwise require similar screw treatments. Although applying a performance-enhancing coating on a small number of screws is not expensive or time-consuming, doing so significantly increases the overall assembly time for large scale applications with dozens, hundreds, or thousands of screws.

Ruland developed Nypatch® to provide frictional drag on the threads of the socket head cap screws to inhibit their unintentional loosening. The coating has enhanced the performance of Ruland couplings for over 40 years by providing anti-vibration friction without absorbing excess screw torque and reducing galling between stainless steel couplings and their screws.

Nypatch® is applied to the full thread circumference, which keeps screws centered and assists in the alignment of the two halves of two-piece couplings. Nypatch®-coated screws can be loosened and re-torqued several times without degrading their holding power, providing additional convenience and cost savings even after their initial installation.


Nypatch®-coated screws are included as standard hardware for the following Ruland products:


One-Piece Rigid Couplings (Clamp Style)
Two-Piece Rigid Couplings (Clamp Style)
F-Series Six Beam Couplings

If you would like to request Nypatch® screws with a product not listed above, please call us at 508-485-1000 or email us at sales@ruland.com.

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