Prime-Line Mill Aluminum 5/16 in. W X 72 in. L Spreader Bar 1 pk

This is a spreader bar for large screen frames that allows the screen frame to retain its shape. Constructed from roll-formed aluminum that has a 0.025 gauge for strength. Used on screens in excess of 48 in., mounts across the center of the screen and prevents the sides of the screen from bowing in, keeps the screen fabric tight, with no wrinkles or sagging.