14 cards ranked
Best credit card to use at Master Lock.
Home ImprovementOnline Shopping
Master Lock is a longtime American manufacturer of padlocks, combination locks, and security hardware, a category it has dominated since the 1920s and that now extends to bike locks, cable locks, and lock boxes sold through hardware stores and its own site. There is no Master Lock co-brand credit card, so purchases are best routed through a home-improvement category card, or a flat-rate cashback card if you would rather not track category bonuses for a lower-spend item like this.
Picks without a tag earn at Master Lock both in-store and online. Watch for theOnline onlytag — those bonuses only apply on masterlock.com.
- #13.5%5x points
- #2Blue Cash EverydayOnline onlyAmerican Express3% on online shopping (up to $6,000/year, then 1%)U.S. online retail purchases3%
- #32.1%3x points
- #43%
- #52%
- #62%
- #7First Electronic Bank2% flat-rate cashbackUp to 4% with higher crypto balances on Coinbase; requires Coinbase One membership2%
- #8Elan Financial Services2% flat-rate cashbackWhen deposited into an eligible Fidelity account2%
- #9American Express2% flat-rate cashbackUnlimited 2% cash back on eligible purchases2%
- #10Navy Federal2% flat-rate cashbackIssued on the cashRewards application when approved for a credit limit of $5,000 or more; lower limits receive cashRewards at 1.5%2%
- #112%
- #122%
- #132%
- #142%
Last updated July 9, 2026