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High Security Electric Deadlocking Bolt DB38 High Security Electric Deadlocking Bolt DB38 High Security Electric Deadlocking Bolt DB38 High Security Electric Deadlocking Bolt DB38
DB38 Electric Deadlocking Bol
DB38 Electric Deadlocking Bolt 2 lr
DB38 Electric Deadlocking Bolt 3 lr
DB38 Electric Deadlocking Bolt 4 lr

High Security Electric Deadlocking Bolt DB38

The Alpro DB38 electric deadlocking bolt incorporates the latest design innovations to be applied to the manufacture of a transverse action deadlocking solenoid bolt.  This electric deadlocking bolt offers the highest level of security, quality electronic ingenuity as the DB25 but with increased strength primarily achieved by utilising a larger diameter bolt pin, the DB38 is the preferred option when high physical strength is needed. 

Features Include

  • High Security
  • Robust Construction
  • Versatile Installation
  • Dual Monitoring
  • 5 Year Guarantee

  • Specification
  • Order info
  • Documents
  • FAQs


The advanced microprocessor module provides power reduction allowing for continuous operation without heat generation as well as automatic voltage regulation, dual monitoring and access control features.

The DB38 can be connected to advanced access control systems where logging and traffic reports are important which makes it the ideal solution for centrally controlled buildings. It provides feedback of both door and bolt positions which can be used in conjunction with a the security and access systems to fully monitor and control movement.

Surface mounting a lock and/or strike with the aid of a DB38 housing offers more flexibility in installation and makes securing glass doors possible. Dress plates are offered to give a ‘clean’ finish when a housing has been installed onto glass. Both the housing and dress plate are supplied with self-adhesive tape for instant application to glass doors and frames.

High Physical Security
Holding force 2,000kg - automatic deadlocking.
Bolt throw 14mm.

Robust Construction
All stainless steel bolt pin of 14.2mm diameter, linkages and springs. 3mm stainless steel faceplate and strike plates with fully enclosed mechanism.

Versatile Installation
Mortice mount horizontally or vertically, on single or double action doors.
Surface mount with the aid of the DB38 accessories, including mounting onto glass.

Physical Dimensions
203mm (L) x 37.5mm (W) x 44mm (D)


Multiple Voltage Input
Any voltage from 12vDC-24vDC.
Thermal overheating protection.
Complete with built in transient and reverse polarity protection and continuously rated solenoid.

Low Current Consumption
Volts Current-Active Current Hold (after 200ms)

12vDC 1500mA 230mA
24vDC 1400mA 90mA

Dual Monitoring
Bolt and Door position switches

Built-in Access Control Module
Automatic unlock period - 0, 3, 6 or 9 seconds.
Multiple auto relock function - PTL.
Multiple unlock function - PTO.

Strike box and housing kit.
Stainless Steel strike plate with square hole.
Glass surface mount kit dress plate.


Built-in Access Control Module

Selectable unlock period - a field selector timer once the bolt is signalled to unlock. This enables traffic exiting 0, 3, 6 or 9 seconds in which to open the door before it automatically locks. See Anti-Tailgate.

Multiple auto relock function - when relocking the bolt makes 9 locking attempts over 18 seconds. Change in the Bolt Position Switch status indicates that the door has been locked.  Fail open/PTL models only.

Multiple unlock function - in fail secure/PTO mode 5 attempts to unlock door at 2 seconds intervals.

Anti-Tailgate - once the door has been pushed open and closed during the chosen unlock period, the bolt will immediately relock.

Order info

12-24vDC deadlocking bolt PTL - 38mm with wide faceplate including strike plate and square hole Fail open/PTLDB38/PTLOCK
12-24vDC deadlocking bolt PTO - 38mm with wide faceplate including short strike plate with square holeFail secure/PTODB38/PTOPEN


Strike box and housing kit DB38/SMH-KIT
Stainless Steel strike plate with square hole DB38/SSP
Glass surface mount kit dress plate DB38/SMK-DP




Is there a charge for delivery?

Carriage and packing are included in orders over £250.00. A charge of £10.00 is made on lower value orders to cover carriage, packing and insurance. For deliveries to Ireland please speak to the office for pricing.

What guarantees does Alpro give?

6 years for AL110/AL150/AL2000 series electric strikes
5 years for EMS1200 shearlocks/EB250 solenoid bolts/DB25 deadlocking bolts
3 years for EB1001 &EB501 electric bolts/door hardware

Do you have any information on CE Marking or CE Marking of Doorsets?

Please refer to our technical section under Standards.


Highlighted Video

EL900 ANSI Electric Strike - Simple Fail Safe - Fail Secure Changeover

Technical Support