Who makes Master Lock? Amazon sales, products and sellers
Updated November 2026 with September 2026 data
At a glance
- Size
- Large
- $3.5M est./mo
- Trend
- Stable
- -9%, last 2 vs prior 2 months
- Ratings
- Strong
- 4.4 ★ · 510,841 reviews
- Who sells it
- Mostly one seller
- Top seller has 95% of units
Master Lock estimated monthly revenue on Amazon
Our read on Master Lock
Master Lock ranks 1 of 86 brands in Combination Padlocks, with an estimated 38% of the category's revenue. Its estimated revenue was $3.5M in September 2026, from about 181,000 units, across 250 products. Estimated revenue was $4.5M in June 2026, which puts the change since the first month at -21% over 4 months of data. The recent trend is labeled Stable, with a -9% change over 2 months. Sales are concentrated: Amazon accounts for 95% of units, while Hearthshire and JZJD Deals each hold 1%, among 30 sellers in total. The average rating is 4.4 across 510,841 reviews. The top product, Master Lock Combination Padlock, sells an estimated 14,000 units per month and is rated 4.5.
Top Master Lock products on Amazon
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| Product | Rating | Est. units/mo | Amazon link |
|---|---|---|---|
| Master Lock Combination Padlock | 4.5 ★22,848 reviews | 14,000 | Check price on Amazon |
| Master Lock Combination Cable Bike Lock 4-Foot Long Bicycle Lock | 4.4 ★41,247 reviews | 10,000 | Check price on Amazon |
| Master Lock 6 ft Cable Bike Lock 4-Digit Combination 1/2 in Diameter | 4.4 ★13,175 reviews | 10,000 | Check price on Amazon |
| Master Lock Magnetic Key Holder | 4.5 ★13,209 reviews | 8,200 | Check price on Amazon |
| Master Lock U-Lock Keyed Bike Lock | 4.5 ★5,090 reviews | 7,900 | Check price on Amazon |
| Master Lock 647D Set-Your-Own Combination Luggage Lock | 4.4 ★8,218 reviews | 6,700 | Check price on Amazon |
| Master Lock Indoor Combination Padlock | 3.8 ★4,922 reviews | 5,700 | Check price on Amazon |
| Master Lock Magnum Heavy Duty Keyed Outdoor Padlock | 4.6 ★12,621 reviews | 5,100 | Check price on Amazon |
| Master Lock Python Cable Lock Heavy Duty | 4.6 ★9,482 reviews | 4,600 | Check price on Amazon |
| Master Lock 5-Key Combination Safe Black/Silver 5401D | 4.7 ★6,765 reviews | 4,400 | Check price on Amazon |
Who sells Master Lock
- Amazon95%
- Hearthshire1%
- JZJD Deals1%
- LocksChocksTiedowns<1%
- Schmaltz<1%
Share of estimated units sold in September 2026, by the seller holding the Buy Box.
Place in its category
#1 of 86
Rank 1 of 86 brands in Combination Padlocks by estimated revenue in September 2026, with 38% of the category.
Frequently asked questions
Who makes Master Lock?
Master Lock is the brand name on 250 products we tracked on Amazon in September 2026 mostly in Combination Padlocks (Tools & Home Improvement). The largest seller of Master Lock products that month was Amazon, with 95% of estimated units. Amazon listings don't show the brand owner's legal name, so the brand's own website is the place to confirm its parent company.
How much does Master Lock sell on Amazon?
Master Lock sold an estimated $3.5M on Amazon in September 2026, about 181,000 units. That is -21% compared with June 2026. These are Ecominsights estimates, not figures reported by the brand.
What are Master Lock's best-selling products on Amazon?
By estimated units sold in September 2026: 1. Master Lock Combination Padlock (about 14,000 units); 2. Master Lock Combination Cable Bike Lock 4-Foot Long Bicycle Lock (about 10,000 units); 3. Master Lock 6 ft Cable Bike Lock 4-Digit Combination 1/2 in Diameter (about 10,000 units).