Commercial Restrictor Arm
CS 102 10"


Nafmo Domestic Friction Stay Hinges

Commercial Restrictor Arm CS 102 10"

Commercial Restrictor Arm CS 102 10"

On side-hung windows supported by standard butt hinges (and in some cases friction stays) the friction arm offers distinct advantages over the conventional peg stay. It is totally concealed when the vent is closed and offers no internal obstruction when opened.

For large top hung vents, the friction arm can be used as an extra support by fitting it below the existing friction stay. This has the effect of limiting the opening as well as adding greater stability to the window.

Product Specifications

Heavy Duty Range
Length in (inch)
Length in (mm)
Height in (mm)
Width in (mm)
Weight approx
Stack Height
Restrictor Stay

What We Offer

Nafmo Domestic Friction Stay Hinges

Nafmo Universal Friction Stay Hinges

Nafmo Commercial Friction Stay hinges

Nafmo Restrictor

Products FAQ’S

Insotherm caters to both residential and commercial markets. Their products are designed for durability and functionality in various settings.


Consider factors like window type (casement, sliding, etc.), material (wood, aluminum, uPVC), security requirements, and aesthetics when selecting Insotherm hardware.


Yes, Insotherm ensures that their hardware meets safety and quality standards.


You can buy Insotherm products through authorized dealers, distributors, or directly from website.

Insotherm window hardware is known for its innovative design, reliability, and adherence to rigorous quality standards. Their products are designed to enhance both functionality and aesthetics of windows in residential and commercial settings.