CRL Wire Tension Spring [100 pack] - WSC405PK

Product Overview "CRL Wire Tension Springs are specifically designed to provide the required tension to keep screens effortlessly held in metal window frames. Installing them is a straightforward process – simply make a notch on the screen using our Cat. No. WST901 Notching Tool and insert the spring. Rest assured, these springs effectively provide the tension necessary to keep the screen frame completely secure."