Round, hollow core and serrated, used to hold screen material in window and screen doorframes. Use for aluminum and fiberglass screening.
Flat black vinyl.
Miter cut, standard .040 gauge, use with .020 or .025 frame.
Square cut plastic. Designed for double hung wood windows, casement type metal and some sliding windows.
18 x 16 mesh, 0.011 diameter, easy to install, flexible screening for use in doors, windows, porch and patio enclosures. Resists stretching and shrinking. Will not dent, fade, or corrode. Sold by the roll for contractors or used for in-store cutting.