Mechanical Safe Lock

30181 Series Safe Lock

30181 series is a UL Group 2 Listed, 3-wheel combination safe lock with one million theoretical codes that are suitable for ATM, gun safes and home safes.

kcolefas 3 wheel ul lock body 30181
kcolefas 3 wheel ul lock body 30181

The 30181 series is the combination lock body for mechanical safe locks. The 3-wheel safe locks have one million possible combinations and can resist manipulation for more than two hours. The industry standard mounting footprint allows the locks to be easily retrofitted or replaced with other safe locks without effort. With certification under UL listed group 2, these locks have been widely trusted and installed on a variety of security applications like gun safes, vault rooms, ATMs, government offices and banking facilities. The mechanical safe locks always play an indispensable part in the security industry due to its outstanding durability and stability.


  • 3-wheel combination lock
  • Standard footprint
  • Integrated relocker: bolt blocking in case of manipulation of the lock cover
  • Die-cast lock case and bolt
  • Bolt throw: 8.7mm
  • Accessory pack: change key, spline key,
  • 2 screws 1/4 – 20 x 3/8 PH
  • 2 screws 1/4 – 20 x 1 PH
  • Four-way mounting: left hand, right hand, vertical up, vertical down


Product SpecsDescription
Size85*61*29 mm
Weight460 g
FinishingColor zinc, White Zinc
BoltBolt with 2 M4 threads
Accessory PackMetric system: 2 Screw M6 x 10 mm, 2 Screw M6 x 25 mm
Imperial system: 2 screws 1/4 – 20 x 3/8 PH, 2 screws 1/4 – 20 x 1 PH
CertificationUL Group 2