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Over 15 years in the making, NL-19 is Foreverbolt's proprietary lab-tested treatment that modifies the surface of stainless steel products, producing a brighter finish, increased strength, and superior corrosion resistance all without affecting the fastener's exterior dimensions.

The Foreverbolt NL-19 treatment is an advanced corrosion protection that can dramatically reduce future maintenance and repair costs.

"Stainless steel fasteners have remained unchanged since their creation nearly 80 years ago," explains company founder Patrick Vogel. "Under normal conditions ordinary stainless fasteners will corrode and fail, resulting in unwanted replacement and maintenance costs. The NL-19 treatment modifies the surface of stainless steel fasteners in a way that increases their corrosion resistance by more than 7x. Not only were we successful in preventing corrosion but after treatment, the fasteners are 1.9% stronger. It's nothing short of amazing!"