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HKS

Hardware & Hollow Metal, Inc.

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Warnock Hersey Fire Ratings

20 min label is suitable for 1 hour rated wall
60 min label is suitable for 1 1/2 hour rated wall
90 min label is suitable for 2 hour rated wall
3 hour label is suitable for 4 hour rated wall (available on metal doors only)

Positive Pressure

If you have questions about positive pressure requirements, please call us at the number below

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Door Handing

Follow the diagram below to correctly determine the hand of the door.

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