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Yellow thermoplastic lockout padlock with steel shackle and two keys

Master Lock

Master Lock 410KAS3YLW Lockout Padlock Keyed Alike Yellow

SKU CH-BSYJ-H1J7G

Thermoplastic lockout padlock with steel shackle, keyed alike and supplied with two keys

  • Product typeMechanical Push Button
  • Keyed-alike convenience with two keys included
  • Thermoplastic body resists chemicals and corrosion
  • Steel shackle provides strong cut resistance
  • Compact 1 1/2 in shackle fits tight lockout points
  • Bright yellow colour ensures high visibility on site

Lockout Padlock Keyed Alike

Master Lock 410KAS3YLW is a thermoplastic lockout padlock with a yellow body for clear visual identification during safety procedures. It uses a mechanical push-button mechanism and comes keyed alike so one key opens multiple locks in the same set. Two keys are supplied with each padlock.

Maintenance Teams and Solo Users

This padlock suits maintenance teams who need several locks operated by a single key to simplify lockout routines. It also fits solo users who want a lightweight, chemical-resistant lock for personal equipment isolation. Buyers who need unique keys for every lock or a non-conductive shackle should look at something else.

Keyed Alike Configuration

The defining specification is the keyed alike system, which determines whether one key operates all locks in the group. Confirm this matches your lockout plan before ordering.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 57% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMaster Lock
Product typeMechanical Push Button

Questions about this item

Should I choose the Keyed Alike version or a keyed-different padlock?

Keyed Alike means every padlock in the set opens with the same two included keys, so one person can carry a single key for multiple lockout points.

What does the 13/16 in horizontal shackle clearance mean when I fit it on a hasp?

It gives you 13/16 in of space between the shackle legs, wide enough for most standard lockout hasps and chain links.

The shackle is 1/4 in diameter — what does that limit in practice?

A 1/4 in steel shackle fits common lockout holes but will not pass through larger-diameter anchor points or thick chain links.

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