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Black laminated steel rectangular padlock with boron shackle

Master Lock

Master Lock BumpStop 5-Pin Keyed Alike Padlock

SKU CH-8JGZ-R5RS5

5-pin padlock with BumpStop cylinder and boron shackle, keyed alike for single-key convenience

  • Product typeBumpStop
  • BumpStop cylinder resists bumping attacks with 5-pin security
  • Boron-alloy shackle withstands cutting and prying attempts
  • Laminated steel body adds layered strength against forced entry
  • Weather-resistant construction protects internal mechanism outdoors
  • Keyed-alike convenience opens multiple locks with one key

Master Lock BumpStop Padlock

This Master Lock BumpStop padlock provides high-security protection for gates, sheds and storage units. Its laminated steel body and boron shackle resist cutting and prying attempts. The weather-resistant finish suits permanent outdoor installation. Five-pin cylinder with BumpStop technology defeats common bump-key attacks.

Keyed alike convenience and rekeyable cylinder

All locks in the set open with the same key number 10G020 using the Master K6000 keyway. The shackle measures 5/16 in diameter with 1 1/8 in clearance and 7/8 in width for standard hasp compatibility. Rectangular laminated body allows rekeying by a locksmith when key control changes. No control key registration is required for operation.

Five-pin BumpStop cylinder decides fit

The 5 pin BumpStop cylinder is the specification that determines whether this padlock meets your security requirement. It prevents bumping while accepting only the supplied alike keys. Buyers who need a different key code or a higher pin count must choose another model.

How it compares

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

Price $20.99
Cheaper than about 69% of the 2,145 comparable items (median $55.99).

Specifications

Product
Brand nameMaster Lock
Product typeBumpStop

Questions about this item

What keyway does the BumpStop padlock use and which key number operates it?

The lock uses the Master K6000 keyway and opens with key number 10G020.

What are the shackle dimensions and body thickness for this lock?

Shackle diameter is 5/16 in, height 1 1/8 in, width 7/8 in; body thickness is 1 in.

How is the BumpStop cylinder rekeyed and what common step is missed?

Remove the cylinder plug with the control key, swap pins, then reinstall; forgetting to test the new key before closing the shackle often leaves the lock inoperable.

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