CRL-U.S. Aluminum Mill 5" Male Split Mullion Screw Spline 24'-2"

• Stock and custom lengths available
• Clear and bronze black anodized finishes
• Designed for use with CW250 female split mullion
• Duranar® and Duranar® Sunstorm® color coatings available on request
• 6063‑T6 aluminum alloy and temper

CRL‑U.S. Aluminum Extrusions are manufactured in the U.S.A. to exacting architectural standards. These 6063‑T6 aluminum extrusions deliver tight section fits for structural integrity and an aesthetically superior finish—ideal for curtain wall, storefront, and mullion applications that require reliable, made‑in‑USA extruded mullion components. Stock lengths and standard finishes are available; custom finishes, Duranar® coatings, and special cut‑to‑size lengths can be quoted to meet project requirements.

With decades of experience creating custom extrusions—from rounded center glaze sills to extended curtain wall face caps—U.S. Aluminum can accommodate unique project profiles. NOTE: Custom extrusions may be subject to minimum orders and die charges; details will be provided in your quote.

SKU: CW25999

Request a quote or contact CRL Customer Service to order custom lengths and finishes.