Pro-Lock Valve Lockout Padlocks

Our range of British made brass padlocks are ideal for use in lockout/tagout systems.

  • Padlock bodies and keys numbered as standard.
  • Padlock numbers recorded for each customer to avoid duplications to site on future orders.
  • Over 30,000 individual locking mechanisms available (enough for most lockout/tagout systems!)
  • Rustproof brass bodies and shackles. (Steel shackles can be supplied upon request).
  • Padlocks can be made to your specific keying requirements.
  • All our brass padlocks are British made.
Lockout padlocks from Pro-Lock

—- 3 Standard keying options —-

Padlocks to differ

Padlocks to differ – each padlock is keyed differently, supplied with 2 keys per lock. 30,000 individual padlocks available

Padlocks keyed alike

Padlocks keyed alike – each padlock is keyed the same,  1 key will open all padlocks

Padlocks Master & Differ – Each padlock is keyed differently, supplied with 2 keys per lock. A master key will override and open any of these padlocks. 1000 individual padlocks available on 1 master key. 8 different master keys available

How to Order:

When ordering padlocks, please specify keying option required by replacing the asterisk * in the product code with:
D = For padlocks keyed to differ
A = For padlocks keyed alike
M = For padlocks master & differ

Standard Shackles

brass standard padlock
Product CodeBody sizeShackle clearanceShackle diameter
S32*32mm15mm4.7
S38*38mm19mm6.3mm
S51*51mm25mm8,7mm

Medium Shackles

The M32 recommended for use with the Pro-lock valve lockout system

Product CodeBody sizeShackle clearanceShackle diameter
M32*32mm32mm4.7
M38*38mm38mm6.3mm
M51*51mm45mm8,7mm

Long Shackles

Long Shackle Padlock
Product CodeBody sizeShackle clearanceShackle diameter
L32*32mm51mm4.7
L38*38mm64mm6.3mm
L51*51mm80mm8,7mm

Keys / Master Keys

Overriding master keys for Master & Differ padlocks and additional / replacement keys

Padlock key
Product CodeDescription
MKEYMaster Key
PKEYAdditional/Repeat individual padlock key

Small Brass Padlock

Available with 600 individual key combinations

small brass padlock
Product CodeDescription
S25Padlock keyed to differ
S25KPadlock keyed alike
Master & differ not available in this size

Please email or call for our best prices. Large discounts available. Place your order by Fax or email

Please use one of the buttons below for our pricing and ordering information or to contact us with your enquiry. Please call us on 01253811333 during UK office hours if you require an immediate response.