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Ives 3CB1HW 4.5X4.5 630 NRP 3-Knuckle Concealed Bearing Hinge, Heavy Weight, 4-1/2" x 4-1/2", Non-Removeable Pin, Satin Stainless Steel
3CB1HW 3 Knuckle, concealed bearing, heavyweight full mortise hinge
Recommended for heavier weight doors (>150 lbs) Recommended for high-frequency usage (400 cycles per day) Made with two heavy-duty concealed nylon bearings Recommended for use with a door closer Packed with fasteners for hollow metal and wood doors
Certifications Certified to ANSI/BHMA A156.1 for performance standards Meets ANSI/BHMA 156.7 for template hinge dimensions UL Classified for windstorm rated assemblies - R37965 UL Listed, 3-hour fire doors Material substrate Made from brass, 1040 steel, or 304 series stainless steel
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