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Red vinyl-coated steel lockout hasp model 421

Master Lock

Master Lock 421 lockout hasp

SKU CH-9YRB-MCKZJ MPN 421

A steel lockout hasp with vinyl coating accepts up to six padlocks so equipment stays off until every worker removes their lock

  • MaterialHAWA
  • Enables multi-worker lockout for team safety
  • Heavy-gauge steel jaw resists forced removal
  • Vinyl coating protects against corrosion and wear
  • Snap-on style allows quick application
  • Accepts up to six padlocks for group control

Lockout hasp for six padlocks

The Master Lock 421 is a steel lockout hasp coated in red vinyl, designed to keep equipment inoperative during maintenance. It accepts up to six padlocks so every worker on the job can apply their own lock. The snap-on style jaw closes securely over the energy-isolation point. Heavy-gauge steel construction resists prying and impact in industrial environments.

Suits teams needing group lockout

This hasp fits maintenance crews who require multiple-person lockout at a single isolation point. The 3/8-inch maximum shackle diameter accommodates standard safety padlocks used in many facilities. It is not for applications that need more than six locks or a larger jaw opening than 1 1/2 inches. Buyers who want a different colour code or a non-vinyl coating should look at other models.

Six-padlock capacity decides fit

The defining specification is the six-padlock limit, which determines whether the hasp matches your lockout procedure. If your safety plan calls for more authorised workers per energy source, this unit will not comply. Verify the 1 1/2-inch closed hasp hole size against your switch or valve dimensions before purchasing.

Highlights

  • Enables multi-worker lockout for team safety
  • Heavy-gauge steel jaw resists forced removal
  • Vinyl coating protects against corrosion and wear
  • Snap-on style allows quick application
  • Accepts up to six padlocks for group control

Specifications

MaterialHAWA
BrandCONDOR
Shipping weight0.23 kg
Package size152 × 127 × 76 mm

Questions about this item

Does the steel jaw and vinyl coating on the 421 hasp create any noise or heat during extended lockout procedures?

The 421 hasp uses a heavy-gauge steel jaw with a vinyl coating for grip and insulation. It has no moving mechanical parts, motors, or electrical components, so it produces no operational noise or heat during continuous use.

What padlocks must I already own to use the 421 hasp for a group lockout?

You need up to six padlocks with shackle diameters no larger than 3/8 inch. Each worker attaches their own padlock to the hasp, so the equipment stays locked until the last padlock is removed.

Will the 421 hasp fit the older lockout points on my existing electrical panels and valve handles?

The hasp features a 1 1/2 inch closed hole size and a 2 3/8 inch jaw width. It snaps onto compatible lockout points, but you must verify your existing hardware matches these dimensions for a secure fit.

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