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Two small brass padlocks with steel shackles on a card

Master Lock

Master Lock 120T Three-Pin Brass Tumbler Locks inventory supply

SKU CH-07MD-PX5MA MPN 120T

Three-pin brass tumbler padlocks with steel shackles, keyed alike in pairs for luggage and backpacks

  • Product typeTools
  • Three-pin cylinder design protects luggage and backpacks reliably
  • Durable construction resists tampering for improved security performance
  • Solid brass body with steel shackle provides reliable security
  • Keyed-alike locks enable quick use and convenience
  • Over 90 years of Master Lock manufacturing expertise

Three-Pin Brass Tumbler Locks

Master Lock 120T three-pin brass tumbler locks provide basic security for luggage, backpacks and similar items. Each pack contains two locks and two keys. The 3-pin cylinder design resists casual tampering. Solid brass bodies with steel shackles offer durable construction for everyday use. Keys are cut alike so one key opens both locks.

Indoor use and low-stress environments

These locks operate without power, electronics or moving parts beyond the cylinder and shackle. There is no thermal output, no noise and no power draw. Solid brass resists corrosion in normal indoor conditions. The simple mechanical design requires no maintenance or lubrication under typical use.

Keyed-alike convenience for paired items

Two locks and two keys are supplied in each pack, allowing a single key to secure both units. This suits travellers locking a suitcase and a backpack together, or staff securing matching cabinets. The locks do not accept a master key or re-keying. Buyers who need unique key codes per lock, weather-rated outdoor models or higher-pin cylinders should choose a different product.

How it compares

Measured against everything we stock in Stockroom Supplies & Equipment, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 85% of the 352 comparable items (median $73.49).

Specifications

Product
Brand nameMaster Lock
Model name120T
Product typeTools
Size & build
Shipping weight0.09 kg
Package size142 × 71 × 13 mm

Questions about this item

How are the two 120T locks installed on luggage zippers and what step do people often miss?

Thread each 3/4" steel shackle through the zipper pulls, snap the shackle into the brass body until it clicks, then test both keys in each lock to confirm the keyed-alike cylinders turn smoothly before relying on them.

What maintenance will the three-pin brass cylinders and steel shackles need over time?

Apply a light PTFE lubricant into the keyway every few months and wipe the shackles clean after exposure to moisture to keep the three-pin mechanism operating freely and prevent surface corrosion on the steel.

What is the first limitation you hit when the 120T locks see daily travel use?

The three-pin brass cylinder provides basic deterrence; under sustained force or picking attempts it will yield before a higher-pin or hardened-shackle model, so treat it as a casual-security lock for luggage and backpacks.

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