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Frequently Asked Questions

Are Marks USA exit devices made in America?

Yes, Marks USA manufactures panic hardware domestically, making them ideal for projects requiring American-made products or domestic content compliance.

What types of Marks exit devices are available?

National Lock Supply offers Marks rim exit devices, mortise devices, and vertical rod devices in various grades and configurations for different door types and applications.

Do Marks exit devices meet fire codes?

Yes, Marks manufactures fire-rated exit devices tested and labeled for fire door assemblies. National Lock Supply stocks devices with appropriate fire ratings for code compliance.

Can Marks exit devices be locked from outside?

Marks offers exit device trim with key cylinders, thumbpieces, lever handles, and deadbolts. National Lock Supply can provide trim configurations meeting your security requirements.

Are Marks exit devices suitable for high-traffic areas?

Yes, Marks manufactures heavy-duty exit devices tested to ANSI/BHMA Grade 1 standards for institutional applications with heavy use patterns.

What finishes are available for Marks devices?

National Lock Supply stocks Marks exit devices in architectural finishes including US26D (satin chrome), US32D (satin stainless), US10B (oil-rubbed bronze), and other standard commercial finishes.