Plus: the best credit cards to use at Harbor Freight Tools for maximum rewards in 2026.
By PointsPick Team, Credit Card Research Team · Updated April 2026
Harbor Freight Tools uses MCC code 5251 (Hardware Stores). The best credit card is the Lowes, earning 5x rewards on this category.
Harbor Freight Tools transactions are processed under MCC 5251 (Hardware Stores, category: retail). These cards earn the highest rewards:
| Card | Earning Rate | Annual Fee | Issuer | |
|---|---|---|---|---|
| Lowes | 5x | No annual fee | American Express | Apply Now |
| Custom Cash | 5x | No annual fee | Citi | Apply Now |
| Customized Cash Rewards | 2x | No annual fee | Bank of America | Apply Now |
| Ink Business Cash | 2x | No annual fee | Chase | Apply Now |
| Business Platinum | 2x | $695/yr | American Express | Apply Now |
Rates and fees as of April 2026. Verify with issuer before applying.
Harbor Freight Tools uses MCC code 5251, which is classified as "Hardware Stores". This determines which credit card bonus categories apply to purchases at Harbor Freight Tools.
The best credit card at Harbor Freight Tools is the Lowes, which earns 5x points/miles on purchases coded as MCC 5251 (Hardware Stores).
Harbor Freight Tools uses MCC 5251 (Hardware Stores). This means purchases at Harbor Freight Tools do NOT qualify for grocery credit card bonuses, which require MCC 5411 (Grocery Stores and Supermarkets).