742 Series

The 742-75 series is a 3 hour fire-rated, industrial grade electric strike designed for extreme heavy duty applications. The all stainless steel construction of this device makes it ideal for high abuse applications. The 742-75 series comes standard with a variety of brackets to accommodate all major mortise and cylindrical locks with up to a 3/4" throw latchbolts.* This is the one electric strike to choose when you are uncertain of which lockset you may encounter. 

742-75 For use with 1/2"**, 5/8"** or 3/4" throw latchbolts in hollow metal frame applictions. 


  • UL 10C fire-rated, 3 hour single door (fail secure only)
  • UL 10C fire-rated, 1-1/2 hour double door (fail secure only)
  • CAN4-S104 (ULC-S104) fire door conformant
  • UL1034, burglary-resistant listed
  • UL 294 (6th Edition) listed
  • ANSI/BHMA A156.31, Grade 1
  • NFPA-252 fire door conformant
  • ASTM-E152 fire door conformant


  • .29 Amps @ 12 VDC continuous duty
  • .15 Amps @ 24 VDC continuous duty

Standard Features

  • Tamper resistant, heavy-duty construction
  • Constructed entirely of stainless steel for strength and corrosion resistance
  • Static strength 1,500 lbs.
  • Dynamic strength 70 ft-lbs.
  • Endurance 500,000 cycles
  • Horizontally adjustable keeper to allow for door and frame misalignment
  • Deadlatch tabs included
  • 3/4" keeper depth
  • Non-handed
  • Fail Secure (standard)
  • Plug-in connector
  • Full keeper shim
  • Five year limited warranty

Optional Features

  • Fail Safe
  • LBMLCM - Latchbolt & Locking Cam Monitor


*Note: 742-75 is designed to work with a variety of mortise locks without deadbolts, including the Schlage L9000 and Yale 8800 without relocating the strike prep in the frame. Consult HES customer support regarding use with Best 40 Series.

**Note: When using LBMLCM with a 1/2" or 5/8" latchbolt, detection may be dependent on the door gap.