Arrow E Series #E61 Grade 2 Single Cylinder Deadbolt Locks,

Deadlocks E Series Housing: Two-piece housing, with free spinning outer ring to prevent wrenching. Concealed mounting screws standard on double cylinder functions. Thru-bolting: supplied with two 1/4" (6.35 mm) steel thru-bolts. Deadbolt: 1" (25.40 mm), solid steel deadbolt throw with hardened steel pin insert. Backset: 2-3/8" (60.32 mm), 2-3/4" (69.85 mm), E41 backset is 2" (60.32mm) – 2 ¾" (69.85mm). Deadbolt fronts: 2-1/4" (57.15 mm) x 1" (25.40 mm) standard for 2-3/8" (60.32 mm) backset, 2-1/4" (57.15 mm) x 1-1/8" (28.57 mm) standard for 2-3/4" (69.85 mm) backset. Drive-in deadbolts are available. Doors: 1-3/8" (34.925 mm) to 1-3/4" (44.45 mm) thick standard. Strikes: Supplied standard with two strikes. #345–security strike for steel frame. #346–security strike for wood frame. Handing: All functions are reversible. Cylinder, Standard: Solid brass, Arrow "A" deyway, drilled for 6 pins, pinned to 5 for stock. E41 is available 5 pin. Supplied with two keys.