Deadbolt locks
DeadBolt Locks from LSI
Locking Systems International Inc. supplies deadbolt locks from Arrow, Yale, Medeco, Keymark and others. We have grade 1 and 2 deadbolt locksets that will compliment our Total Access Control programs.
Download our Arrow Deadbolt Lock Information Sheet ![]()
Arrow D Series DeadBolt Locks
Housing:
Two-piece housing, with free-spinning outer ring to prevent wrenching. Concealed mounting screws are standard on double cylinder functions.
Deadbolt:
1" (25.40 mm), solid steel deadbolt throw with hardened steel pin.
Backset:
2-3/8" (60.32 mm), 2-3/4" (69.85 mm).
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” keyway, drilled for 6 pins, pinned to 5. Supplied with two keys.
Cylinder Options:
Accepts 6 or 7 pin interchangeable cores. Supplied less cores. Will accept Best™ or Falcon™ type cores. ASSA high security cylinders are available.
Finish:
US3, US4, US5A, US10, US10B, US26, US26D.
Certification & Compliance:
• ANSI A156.5, Auxiliary Locks, Grade 1
• Underwriters Laboratories (UL and CUL) listed for use on A label or lesser doors when used in conjunction with a rated primary latching device
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.
Cylinder Options:
Accepts 6 or 7 pin interchangeable cores. Supplied less cores. Will accept Best™ or Falcon™ type cores. ASSA high security cylinders are available.
Finish:
US3, US4, US5A, US10, US10B, US26, US26D.
E41 is available in US3, US15 and US26D.
Certification & Compliance:
• ANSI A156.5, Auxiliary Locks, Grade 2
• Underwriters Laboratories (UL and CUL) listed for use on A label or lesser doors when used in conjunction with a rated primary latching device.
Medeco High Security Maxum Deadbolt Lock

Exceeds ANSI Grade 1 standard for auxiliary locks. Solid brass, free turning collar and 1/4 inch diameter mounting bolts resist wrenching, prying and hammering attacks. 1 inch throw hardened steel bolt resists sawing and crowbar attacks. Hardened steel inserts and rotating pins provide drill and pick resistance according to UL 437 standard. The Medeco3 design offers a utility patent that provides protection against unauthorized key duplication.
Features & Benefits:
- Bolt mechanism designed to accommodate both mortise and drive-in applications, which provide greater flexibility and ease of installation.
- Solid brass collar spins under pressure to prevent wrench attacks.
- Large thumbturn provides ease of use by physically challenged individuals.
- Steel shroud over bolt protects against “ice pick” type attacks.
- High security strike plate has a special box design with 2” screws that anchor the strike directly to the building structure behind the frame, preventing “kick-in” type attacks.
- Hardened steel bolt and bolt throwing mechanism are surrounded by a heavy-gauge tubular steel housing for maximum resistance to crowbar attacks.
- Solid brass design is secured with high-tensile steel mounting bolts for maximum resistance against hammer and prying attacks.
- Utility patented key control, (for cylinders that incorporate the Medeco3 design), provides protection against the unauthorized duplication of keys.
- A special elevating and rotating pin tumbler design, along with false slots on the bottom pins, mushroom top pins and a sidebar mechanism, work together, to provide superior pick resistance.
- Angled cuts on the keys, along with fore and aft positioning, and the reciprocal slider of the Medeco3 design, provide added dimensions that dramatically increases key combinations and enables Medeco® to produce some of the largest master key systems in the industry.
- Hardened steel inserts, positioned in critical areas of the cylinder, provide a high degree of drill resistance.
- 8 different finishes provide an extremely close color match with existing hardware.
- UL437 listing provides assurance that cylinders meet universal standards for drill and pick resistance and resistance against other types of forced attack.
- 2 year Maxum carries a limited lifetime mechanical warrant
Arrow E Series DeadBolt Locks
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