M-D Building Products 0.14 in. D X 25 ft. L Screen Spline 4-40-475-05 Flex Caulk is our latest

Flex Caulk is our latest innovation in caulking technology

Ultra cord replacement belt fits ultra corded hand vacuums

Before we came along

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Clear a 24-car driveway with 8 inches of snow on a single charge when used with two recommended 10

M-D Building Products 0.14 in. D X 25 ft. L Screen Spline 4-40-475-05 Flex Caulk is our latestThe M D spline is the component used to hold screen in a screen frame. Our. 014 in. x 25 ft. spline is recommended to use with aluminum, pet, and sun screens (may vary based on frame size). Pairing the correct spline, screen, and frame will ensure your screens go in easily and remain in place for years to come.