S. Parker Hardware Grade 1 Extra Heavy Duty Ball Knobs Are Used For Entrance And Passage Doors For Classrooms, Offices And More.
Heavy duty ball knobs are made using cold rolled stainless steel and a zinc dichromate finish for corrosion resistance and durability. Ball knobs project 2-1/2 away from door surface. Guarded latchbolt on all locking functions. Two keys per lock are included. Locks will accept Lori plugs. Ball knobs are non-handed. Includes 2-3/4 backset and 4-7/8 ASA strike. Installs in doors from 1-3/8 to 2 thick. Choose from Entry Lock Boxed Ball Knobs or Passage Set Boxed Ball Knobs. Ball knobs are UL® listed. Sold in case quantities of 20.
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