Hidden Shackle Padlocks and Hasps: Quick Reference

Based on Master Lock’s January 2017 simplification.

Contents: Replacements · Keyways · Examples · LHC · Links

Discontinued → Active Replacements

All models use the standard 2-7/8 in (73 mm) diameter and fit existing puck hasps. Discontinued models sold out years ago.

Discontinued Material / Geometry Active Replacement Notes
A2500 Hardened solid steel, flat, screw holes   A2010 Solid steel, flat back. Official replacement.
6270 Hardened solid steel, stepped   A2010 Solid steel, flat back. Keyway guides favor A2010.
A2000 Die-cast zinc, stepped   6271 Reinforced die-cast zinc, stepped.
A2001 Die-cast zinc, flat   6271 Reinforced die-cast zinc, stepped.
A2500LHC1 Steel lock + hasp

 A801LHC or

 770LHC

 A2010 + A801 hasp. Alt: 770LHC (6271).

How to Match Existing Keyway Systems

Order active models with the matching suffix for American Lock, Master Lock, or Edge® keyways.

Discontinued American Lock Master Lock Edge System
5 Pin 6 Pin 5 Pin 6 Pin 4 Pin 6 Pin
A2000, A2001 6271…W600A… 6271…W700A… 6271…W6000… 6271…W7000… 6271…WP4… 6271…WP6…
A2500, 6270 A2010…5PN… A2010… A2010…W6000… A2010…W7000… A2010…WP4… A2010…WP6…
A2500LHC1 A801LHC…5PN… A801LHC… A801LHC…W6000… A801LHC…W7000… A801LHC…WP4… A801LHC…WP6…

Ordering Examples

Discontinued Active Model Matching Old Key
A2000KA 6271KAW700A
A2001KAWP6 6271KAWP6
6270KAW700A A2010KA
6270KA A2010KAW7000
A2500LHC1NKAWP6 A801LHCNKAWP6

KA = Keyed Alike. Contact your distributor with the existing key code for exact matching.

Lock Hasp Combinations (LHC)

LHC Previous Lock Current Lock
A800LHC A2000 A2010
A801LHC A2001 A2010
A802LHC A2001 A2010

 

Sites: MasterLock.com · AmericanLock.com
Original PDF: Quick Reference Guide (2017)

Source: Master Lock Company LLC (January 2017). Always verify current details with an authorized distributor.

FAQs

Why is Master Lock Company discontinuing these items?

Certain items are being discontinued to make it easier to select the right product. The simplified product line will also allow Master Lock Company to streamline manufacturing operations and improve customer service levels without sacrificing user application coverage.

Will the replacement puck models fit the footprint of the current models and hasps?

Yes. All our lockbodies have the standard 2-7/8in diameter footprint which is compatible with all our puck hasps.

Will users of existing Master Lock and American Lock key systems still be able to purchase locks for their system?

Yes. Master Lock branded puck locks will continue to offer American Lock keyways. Conversely, American Lock
pucks will offer Master Lock keyways. Refer to the Quick Reference Guide on “How To Match Existing Keyway Systems”.
Both brands will continue to support Edge® patented key control systems.

Will LHC (lock hasp combinations) items be discontinued?

LHC items will continue to be available, but the discontinued puck locks will be replaced. The exception is the
A2500LHC1. Customers should now order A801LHC as an alternative which will include the A2010 solid steel
puck lock. Pricing will be adjusted to reflect this change. 770LHC will be added as a lower cost alternative.

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