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Archford keyed-alike 38mm steel padlock, blue

The Archford keyed-alike 38mm steel padlock (KA-38S-BLU) is a blue lockout and tagout lock that isolates switches, valves and plant during maintenance so they cannot be re-energised. One key opens every padlock in the set.

Brand ArchfordCode KA-38S-BLUCategory Site safety equipmentLast updated 20 June 2026

Key takeaways

  • The Archford KA-38S-BLU is a 38mm steel padlock made for industrial lockout and tagout isolation.
  • Keyed alike means one key opens every padlock in the set, which suits a single authorised person or team controlling isolation.
  • For personal lockout, where each worker must be the only person able to remove their own lock, choose keyed-different padlocks instead.
  • The blue body supports colour coding, so teams can identify locks by area, function or owner.
Quick specs
SpecThis SKUWhat to check
Body and shackle38mm steelConfirm 38mm suits your isolation points
KeyingKeyed alike, one key per setConfirm every lock is on the same key
ColourBlueMatch the colour to your lockout coding
UseIndustrial lockout and tagoutCheck it fits the device you isolate
Personal lockoutNot ideal, choose keyed differentCheck who must remove each lock
Brand and codeArchford KA-38S-BLUQuote this code when you order

What is the Archford keyed-alike 38mm steel padlock?

The Archford keyed-alike 38mm steel padlock, code KA-38S-BLU, is a blue lockout and tagout lock for industrial sites. Its steel body is built to stand up to harsh industrial environments, and it isolates switches, valves and plant during maintenance so the equipment cannot be re-energised.

A 38mm keyed-alike steel padlock for everyday lockout and tagout isolation.

Built for lockout and tagout duty

The Archford keyed-alike 38mm steel padlock (KA-38S-BLU) isolates switches, valves and plant during maintenance so they cannot be re-energised. Its 38mm steel body stands up to harsh industrial environments, and the keyed-alike system means one key opens every lock in the set, which simplifies management where a single authorised person controls isolation.

Key features

  • Shackle/body: 38mm steel
  • Keying: Keyed alike (one key opens the set)
  • Use: Industrial lockout/tagout
  • Product type: site safety product

Where it fits

  • Listed under site safety equipment at Done Right Safety
  • Compare against the alternatives in the same category before ordering

Archford keyed-alike 38mm steel padlock, blue specifications

Archford keyed-alike 38mm steel padlock, blue specifications
SpecificationDetail
SKUKA-38S-BLU
BrandArchford
CategoryLockout/Tagout (Workplace Safety)
Shackle/Body38mm steel
KeyingKeyed alike (one key opens the set)
ColourBlue
UseIndustrial lockout/tagout
Product codeKA-38S-BLU
Product typesite safety product
Where to buyDone Right Safety, donerightsafety.com.au

Should you choose keyed-alike or keyed-different padlocks?

Keyed alike means every padlock in the set opens with the same key, which suits one authorised person or team managing isolation across many points. Choose keyed-different padlocks for personal lockout, where each worker must be the only one who can remove their own lock.

"Keyed alike" means every padlock in the set is opened by the same key. That is convenient when one authorised person or team manages isolation across many points. Important: for personal lockout, where each worker must be the only one who can remove their own lock, use keyed-different padlocks so no one else can release your isolation. Choose keyed-alike where convenience is the priority and keyed-different where personal protection is.

Using it in a lockout procedure

After isolating the energy source, apply the padlock so the device cannot be operated, attach a tag identifying who applied it and why, and verify zero energy before work begins. Colour-coding (this one is blue) helps teams quickly identify locks by area, function or owner.

Frequently asked questions

Is keyed-alike suitable for personal lockout?

Keyed-alike padlocks are not ideal for personal lockout, because every lock in the set opens with the same key and someone else could release your isolation. Personal lockout should use keyed-different locks so only the worker who applied the lock can remove it. Keyed alike suits single-authority or equipment lockout.

What size is the Archford keyed-alike padlock?

The Archford KA-38S-BLU is a 38mm steel padlock built for industrial environments. Its steel body stands up to harsh industrial conditions, and the blue colour lets teams code locks by area, function or owner. Confirm the 38mm body suits the isolation points on your plant before ordering.

How do you use this padlock in a lockout procedure?

After isolating the energy source, apply the padlock so the device cannot be operated, attach a tag identifying who applied it and why, then verify zero energy before work begins. Colour-coding helps teams quickly identify locks by area, function or owner, and this padlock is blue.

Why is this lockout padlock blue?

Blue is the colour of this padlock, and colour-coding helps teams quickly identify locks by area, function or owner. Decide what blue means in your lockout procedure, whether that is an area, a function or an owner, then order the KA-38S-BLU for those isolation points.

Keyed alike 38MM Steel padlock - Complete Guide
Product code KA-38S-BLU
Buy at Done Right Safety

Done Right Safety Team

Safety, PPE & Workwear Specialists

Written from the product real specifications, its listed AS/NZS ratings and manufacturer supplied detail. Where a listing does not state a rating, the guide says so. Read the editorial standards.

Published 9 November 2025Last reviewed 20 June 2026

Sources

  • Archford product listing on donerightsafety.com.au
Archford keyed-alike 38mm steel padlock, blueKA-38S-BLU
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