T17 Mastergrip XL

Robust Fasteners for Extreme Conditions

The #14 MASTERGRIP™ XL is a heavy-duty fastener designed to provide exceptional strength and stability in environments prone to high winds and heavy snow loads. It features a substantial 3/8-inch Hex Washer Head (HWH), combined with a twin-lead thread pattern, ensuring fast and secure driving. Available in various lengths, including 1 ½”, 2”, 2 ½”, 3”, and 4”, the #14 MASTERGRIP™ XL is versatile enough to accommodate a wide range of roofing and siding applications.

A key innovation of this fastener is its incorporation of oversized washers — available in both 19 mm and 25 mm outer diameters — which enhance its sealing capability and distribute load more effectively. This design makes the #14 MASTERGRIP™ XL an ideal solution for construction projects that demand the highest level of resilience and reliability, especially in areas subject to extreme weather conditions.


  • Head: 3/8 HWH
  • Thread: Twin-Lead
  • Lengths: 1 ½”, 2”, 2 ½”, 3”, 4”
  • Innovation: 19 and 25 mm OD Washer
  • Application: High Wind / High Snow Load

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Providing Alternative Fastener
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