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Brady SafeKey Aluminum Lockout Padlock, Blue (ALU-BLU-38ST-KD, Keyed Different)
$16.97
$27.99
Final price set by Amazon · may vary
EDITORIAL REVIEW: 4.5/5 WC Safety Review — Brady SafeKey ALU-BLU-38ST-KD Lockout Padlock — Aluminum Blue Editorial assessment by the WC Safety Editorial Team, based on published Brady specifications and category f...
Key Features
- Demand is growing for more unique key possibilities in lockout tag out with Safe Key padlocks you get up to 700% more key codes than traditional safety padlocks
- Patent-pending linear lock design allows for more precise key cutting, giving you more unique key codes and smoother key operation
- Find it fast keys and lock bodies are color matched to help you quickly find the key for your lock
- Get years of use with the low-friction locking mechanism and durable one-piece body design
- Heavy-duty jobs need heavy-duty tools aluminum padlocks provide excellent corrosion resistance making them ideal for indoor and outdoor applications
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — Brady SafeKey ALU-BLU-38ST-KD Lockout Padlock — Aluminum Blue
Editorial assessment by the WC Safety Editorial Team, based on published Brady specifications and category fit. We did not laboratory-test this product.
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Brady SafeKey Aluminum Lockout Padlock, Blue (ALU-BLU-38ST-KD, Keyed Different) Overview
The Brady SafeKey ALU-BLU-38ST-KD is an aluminum-body lockout padlock in blue, supplied keyed different (KD) so every lock carries a unique key. That keying is the core of a compliant lockout tagout program under OSHA 29 CFR 1910.147: when an energy-isolation device is locked, only the worker holding that unique key can release it, so equipment cannot be re-energized while someone is still in the danger zone.
The SafeKey aluminum platform is chosen where weight and conductivity matter. The aluminum body keeps the lock light on a tool belt across a long shift, and the non-conductive build is a practical fit for electrical isolation work versus a heavier steel lock. The blue color lets you color-code by department, trade, or crew so a glance at a lockout hasp tells you who has applied locks.
This padlock is a per-worker device. Under the one-worker-one-lock rule, each authorized employee applies their own padlock and their own personal danger tag to each isolation point. When multiple crew members service the same machine, every lock goes onto a lockout hasp, and the machine stays locked until the last worker removes the last lock. Pair it with lockout tagout tags, and stock spares from a wall-mounted lockout station so replacements are always on hand. For specialized isolation points, combine it with cable lockouts or plug lockouts as the application requires.
Brady supplies SafeKey padlocks in multiple keying schemes; this listing is the keyed-different blue ALU-BLU-38ST-KD. If your program needs many locks opened by one key, choose a keyed-alike SKU instead. Browse the full lockout padlocks range to match color and keying to your written energy-control procedure.
What It Is Built For
| Use case | Fit | Buyer guidance |
|---|---|---|
| Electrical panel and disconnect lockout | Strong fit | Non-conductive aluminum body suits electrical isolation; lock the disconnect or breaker per your written procedure. |
| Single-worker machine service | Strong fit | Keyed-different keying gives each worker sole control of their own lock during one-person maintenance. |
| Multi-worker group lockout | Good fit with a hasp | Apply one SafeKey padlock per worker onto a lockout hasp so the machine stays locked until the last lock is removed. |
| Color-coded department or trade assignment | Strong fit | Use the blue body to designate a crew, shift, or department in a multi-color lock program. |
| Fleet keyed-alike control | Not this SKU | This is keyed different; choose a keyed-alike SafeKey padlock if one key must open many locks. |
| Outdoor or high-corrosion long-term placement | Check conditions | Confirm exposure suits an aluminum body; the title makes no weatherproof or corrosion rating claim. |
Lockout/tagout devices are part of an OSHA 29 CFR 1910.147 energy-control program. A lock isolates hazardous energy (electrical, hydraulic, pneumatic, mechanical) so equipment cannot be re-energized during service. Each authorized worker applies their own keyed-different lock and a tag; never share or remove another worker's lock. The hardware is only as good as the written procedure, training, and verification of zero energy behind it. Browse lockout/tagout devices.
Pros & Cons
Pros
- Keyed different (KD) gives each worker a unique key for one-worker-one-lock control
- Lightweight aluminum body is comfortable on a tool belt for full-shift wear
- Non-conductive build is a practical choice for electrical isolation work
- Blue color supports department, trade, or crew color-coding
- Brady SafeKey platform integrates with hasps, tags, and stations for full LOTO programs
- Compatible with multi-lock group lockout when used with a lockout hasp
Cons
- Keyed different means more keys to track than a keyed-alike scheme
- Single padlock only; hasps, tags, and a station are purchased separately
- Title states no ANSI, UL, or weatherproof certification, so do not assume one
- Aluminum body is lighter-duty than hardened-steel padlocks for high-security needs
How It Compares
Within Brady's SafeKey lockout family, the choice comes down to keying scheme and color-coding. All are aluminum-body safety padlocks built for the same OSHA 1910.147 energy-control role; they are not interchangeable in keying.
| Model | Color | Keying | Best for |
|---|---|---|---|
| ALU-BLU-38ST-KD (this lock) | Blue | Keyed different | Per-worker control with blue color-coding |
| ALU-PRP-38ST-KD | Purple | Keyed different | Same KD control, purple crew/department code |
| SafeKey Aluminum (B07RM5LJHD) | Aluminum | Keyed different | Uncolored KD lock for general assignment |
Pick the color that matches your crew or department legend, and keep the keying consistent across your lockout padlocks program. All three are keyed different here, so each lock has its own key for true one-worker-one-lock isolation.
Specifications
| Brand | Brady |
| Series | SafeKey |
| Model | ALU-BLU-38ST-KD |
| Body material | Aluminum |
| Color | Blue |
| Keying | Keyed different (KD) — unique key per lock |
| Lock type | Safety lockout padlock |
| Conductivity | Non-conductive body |
| Primary standard | Supports OSHA 29 CFR 1910.147 energy control |
Related Resources
lockout tagout lockout padlocks lockout hasps cable lockouts lockout stations lockout tagout tags plug lockouts
Frequently Asked Questions
Is the Brady SafeKey ALU-BLU-38ST-KD keyed alike or keyed different?
It is keyed different (KD). Each padlock opens with its own unique key, so one worker controls one lock. If you need many locks opened by a single key, choose a keyed-alike SafeKey SKU instead.
What does the blue color mean on this lockout padlock?
Color has no security function; it is for organization. Many facilities color-code blue to a specific department, trade, or crew so a glance at the locks on a hasp shows who applied them. Match the blue to your written color legend.
Is this padlock suitable for electrical lockout?
Yes. The aluminum body is non-conductive, which is a practical choice for electrical isolation work. Apply it to the disconnect or breaker following your written energy-control procedure under OSHA 1910.147.
How does this lock support OSHA 29 CFR 1910.147 compliance?
It isolates hazardous energy so equipment cannot be re-energized during service. Each authorized worker applies their own padlock and personal danger tag to the isolation point, and only the holder of that unique key can remove it.
Does each worker need their own padlock?
Yes. Under the one-worker-one-lock rule, every authorized employee applies their own lock and their own tag. Order one padlock per worker per isolation point, and buy spares to cover crew rotation.
Can several workers lock out the same machine?
Yes, with a lockout hasp. Each worker hangs their own SafeKey padlock on the hasp; the machine stays locked until the last worker removes the last lock. Browse our lockout hasps to add group-lockout capacity.
What is the body made of?
The SafeKey ALU body is aluminum, which keeps the lock lightweight and non-conductive. This listing does not claim a hardened-steel body, so for maximum cut resistance compare heavier security-grade padlocks.
Is this padlock weatherproof or rated for outdoor use?
The product title makes no weatherproof or corrosion-rating claim, so we do not state one. Aluminum resists rust better than uncoated steel, but confirm the exposure suits your environment before long-term outdoor placement.
Does it come with a tag?
This listing is the padlock itself. Pair it with a personal danger tag from our lockout tagout tags collection so every applied lock carries the required worker identification under 1910.147.
How do I keep replacement locks in stock?
Mount a lockout station near the work area and stock spare SafeKey padlocks, hasps, and tags on it so replacements are always at hand. See our lockout stations to organize your program.
What is the difference between this and the purple ALU-PRP-38ST-KD?
They are the same aluminum keyed-different SafeKey padlock in different colors. Blue and purple let you split locks across two departments or crews. The locking function and keying scheme are identical; only the color code differs.
Can I use this with cable or plug lockout devices?
Yes. The padlock secures the lockout device once it is in place. Combine it with cable lockouts for valves and multi-point isolation or plug lockouts for cord-connected equipment, then apply your SafeKey lock to hold them closed.
Written by Steven Eaton, WC Safety Editorial. Specifications sourced from Brady published data. Compare the range in lockout/tagout.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Match the product to your specific hazard and follow your site PPE program.
Brand / Vendor
Brady
Model / SKU
ALU-BLU-38ST-KD
Product Type
—
Condition
New
MPN
ALU-BLU-38ST-KD
Price
$16.97 (Amazon)
Rating
4.0 / 5 — 11 reviews
Availability
✓ In Stock on Amazon
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Verified Buyer Reviews
Customer Reviews
★★★★☆4.0 / 5· 11 verified reviews
★★★★★
5.0 out of 5 stars
Nice solid aluminum body with an unusual key. The key can only go in one way and I always seem to try the wrong way the first time. As a lockout lock I actually like having to try a second time giving me another chance to confirm I’m ready to remove this lock.
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★★★
5.0 out of 5 stars
I never write reviews however I feel like I should on this lock since there are not many posted. Right off the bat, I love this lock. However, I almost returned it right when I opened the box. The reason was that the key was so difficult to put into the lock I had to force the key in by pressing the key on my desk and pushing as hard as possible into the lock. I decided to put one tiny drop of 3-in-1 oil into the keyhole and the lock instantly freed up and works amazingly. Hopefully, my lock was just a factory defect that they didn't put any assembly lube in. The only downside to the oil I used is I had to wipe the key off each time I used it for the first 15 times because otherwise, the key would leave greasy marks on stuff. Final criticism and this will probably be the most important fact for most buyers. This lock comes with only one key, I am unaware of any locksmith that carries the blanks for this key to make you a second one. I really wish that would sell a model of this same lock with 2 or 3 keys, even if it's $10 more expensive I would pay it.
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★☆☆
3.0 out of 5 stars
Boxes were damaged. Product appeared used
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★★★
5.0 out of 5 stars
Very nice 🙂
Anonymous · 2026-04-30 · ✓ Verified Buyer
★☆☆☆☆
Warning ! Only one key provided
The lock looks and feels sturdy and well made, however only one key was provided, so should it get lost or broken with the lock engaged you will need a hacksaw.
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★★★
Me encantó el color
Resistente y muy útil
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★★★
5.0 out of 5 stars
I work in manufacturing and L.O.T.O. is a must! +the locking mechanism is smooth as butter. +the new key design is amazing. I no longer have to jiggle and wiggle to try to get the key in the lock. +the color looks awesome! [Purple] - unfortunately the paint is not very tough. So after just a couple of weeks the paint is already chipping away with normal use. I have only had this a couple of weeks and don't expect any issue with durability. On the strength I really can't say anything because I neither need it for anything strenuous nor will I test it for that. I will be buying a blue one soon! This is a definite BUY!!!
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★★☆
4.0 out of 5 stars
Only one key so beware and key color doesn't match the lock pad color. I use it for my gym locker so it does what it's supposed to.
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★★★
5.0 out of 5 stars
Love the look and So far the key is still removable even with all the sand it's seen
Anonymous · 2026-04-30 · ✓ Verified Buyer
★★★★★
The lock works & is a great color
Love the lock A great addition to my collection
Anonymous · 2026-04-30 · ✓ Verified Buyer
★☆☆☆☆
1.0 out of 5 stars
Ordered 50, 47 had no key. Way past return date. Annoying and terrible.
Anonymous · 2026-04-30 · ✓ Verified Buyer
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