Safety Products and Limiters

Support Arm

Our sash control devices come in three varieties: limit devices, friction adjustors, and support arms. Limit devices restrict the opening on projected or casement windows - a variety of track and arm lengths are available. Friction adjustors are used to add friction to hinges on projected windows. For top-hung windows, support arms are available in two models. The first opens to full extension and automatically locks into place. The second, designed to extend only 1.5", opens fully with the addition of a key. Once the key is removed, the arm automatically resets when closed.

product highlights

  • 200 lbs compression load resistance
  • 500 lbs tension load resistance
  • Optional adjustable friction for fine tuning
  • Wide range of lengths to suit all sash sizes
  • Key release option allows limited opening


Part # Material Type Hinge Pocket Height Length
2121578 Stainless Steel 0.625" 10"
2121579 Stainless Steel 0.625" 12"
2121580 Stainless Steel 0.625" 12"
2121581 Stainless Steel 0.625" 14"
2121582 Stainless Steel 0.625" 16"
2121584 Stainless Steel 0.625" 20"
2121585 Stainless Steel 0.625" 22"
2121586 Stainless Steel 0.625" 24"
2121587 Stainless Steel 0.625" 28"
Stainless Steel
Stainless Steel