Standard Duty Commercial

• 2-3/4" (70mm)
• 2-3/8" (60mm)

• Meets BHMA Certified ANSI A156.2, Series 4000, Grade 2
• UL/cUL Listed for all functions up to 3 hours for "A" label single doors
• UL10C Positive Pressure Rated

• Brass 6-pin - Keyed Different - Schlage C Keyway - standard
• Cylinder drilled 6 pin , Keyed 5 pin - standard
• Other keying options including 6 pin available from factory
• Zero bit cylinders will be 6 pin keyed - standard
• Interchangeable core, SFIC available

1-3/8" - 1-3/4" (35mm - 45mm)

Wrought Brass or Stainless Steel

• No exposed mounting screws
• Non-handed

US3 and US32D

Entry (F109)

To order, please click here to be redirected to the 3553 Lever product page and choose Knob from the drop down menu.

1/2" Throw - Stainless Steel. Deadlocking latchbolt prevents manipulation when door is closed

Heavy guage steel, zinc dichromated for corrosion resistance

Grade 2 Cylindrical Knob

• 3935 - 1-1/4" x 4-7/8" (32 mm x 124 mm) ASA strike
• Other strikes available

Lifetime