We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Master Lock

Master Lock Zenex Black Safety Padlock 3 in Body

SKU CH-KMCS-1HWBW

Thermoplastic safety padlock with 13/16 in shackle clearance and non-removable key for lockout procedures

  • TypeSafety
  • Thermoplastic body resists chemicals on site
  • Non-removable key prevents accidental unlocking
  • 1 1/2 in shackle clearance fits standard hasps
  • Keyed-different cylinders give each worker unique access
  • Reserved safety cylinder meets lockout programme needs

Safety padlock for lockout procedures

This Master Lock Zenex padlock is built for industrial lockout and tagout programmes. The non-conductive thermoplastic body resists chemicals and prevents accidental electrical contact. A metal shackle provides physical strength while the safety cylinder reserves the keyway for authorised personnel only. It suits maintenance teams who need a dedicated lockout device.

Sustained exposure to chemicals

The thermoplastic body maintains its integrity when exposed to oils, solvents and cleaning agents common in plants. The metal shackle withstands repeated insertion and removal without deformation. The key remains captive in the unlocked position, reducing the chance of loss during shift changes. The lock is designed to stay functional through daily lockout routines.

Keyed-different cylinder for individual

Each padlock ships with a unique key code so no two locks in a set share a key. This ensures that only the person who applied the lock can remove it, meeting the core requirement of personal lockout safety. Buyers who need multiple locks operated by a single key should choose a keyed-alike alternative.

Highlights

  • Thermoplastic body resists chemicals on site
  • Non-removable key prevents accidental unlocking
  • 1 1/2 in shackle clearance fits standard hasps
  • Keyed-different cylinders give each worker unique access
  • Reserved safety cylinder meets lockout programme needs

Specifications

BrandMaster Lock
TypeSafety

Questions about this item

How much horizontal shackle clearance does the 3 in body provide?

The padlock offers 13/16 in of horizontal shackle clearance.

Does the padlock include its own key or must I supply one?

It comes with a standard key that is keyed different and cannot be removed while the shackle is open.

Will the 1/4 in diameter shackle fit the hasps on my existing lockout stations?

The metal open shackle measures 1/4 in diameter with 1 1/2 in vertical clearance, matching many standard lockout hasps.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.