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GSC/Ryan/ASI & Pro-Twist – Strong, Secure, Reliable Partnership

As fellow GMS companies, Gypsum Supply Company (GSC), Ryan Building Materials (Ryan), and ASI Building Products (ASI) are authorized dealers of Pro-Twist™ fasteners and related products from PrimeSource® Building Products through our yards across the Great Lakes region in Michigan and northwest Ohio.

The Pro-Twist Difference

Pro-Twist construction fasteners are engineered for professional-grade use in industrial, commercial, and residential applications. From drywall or steel framing projects to mobile home construction, electrical or plumbing work, plastering, or metal roofing, Pro-Twist has a fastener solution to meet your every need.

Every Pro-Twist fastener is designed and manufactured to meet or exceed industry standards, resulting in sharper, stronger points and a unique thread pattern that delivers improved penetration speeds.

The Pro-Twist family of products is manufactured and distributed by PrimeSource Building Products, one of the largest purveyors of fasteners in the world and among North America’s largest distributors of building materials. PrimeSource has delivered quality construction products and fasteners, and strong relationships, since 1938.

Partner with GSC/Ryan/ASI for All Your Fastener Needs

Having the right fasteners on hand when you need them helps make jobs faster, safer, and more efficient. Gypsum Supply Company, Ryan Building Materials, and ASI Building Products offer a complete line of fasteners for commercial and residential building projects, including:

  • Anchors
  • Nails
  • Screws
  • Shots & pins
  • Staples
  • Adhesives, caulk, & tapes

Buy Pro-Twist Fasteners from GSC/Ryan/ASI

For Great Lakes area construction professionals in Michigan and Northern Ohio, GSC, Ryan, and ASI offer a comprehensive range of exceptional Pro-Twist fasteners, including:

  • Sharp-point drywall laminator screws
  • Drill point screws
  • Winged drill point screws
  • Phillips bugle head coarse thread sharp point screws
  • Modified truss head sharp point screws

Pro-Twist News and Product Updates

Stay up to date with all the latest product releases, improvements and advancements from Pro-Twist and PrimeSource.

  • PrimeSource Acquires Wolf Home Products Learn more
  • PrimeSource Expands Operations with Nationwide Acquisition Learn more