# Master Lock 510D *Published: 2025-06-08 | Updated: 2025-07-18 | Source: https://shopsavvy.com/products/master-lock-510d* --- **Brand:** Master Lock **Price Range:** $1.99 - $47.29 across 128 retailers ## Pros - Great quality for a reasonable price. - Versatile: suitable for multiple doors and areas. - Strongly recommended by some users. ## Cons - The padlock design allows it to come off easily and can be reattached upside down, blocking key access. - The product may necessitate removal by cutting if mishandled. - Users have reported a consistent design flaw causing assembly issues. - There is a risk of incorrect assembly that renders the product unusable. - Necessary tools for disassembly might incur additional costs. - The locking mechanism tends to fail after a year of use. - Quality of the locks has deteriorated over time, leading to frequent replacements. - Users are dissatisfied with the company's contribution to environmental issues due to frequent replacements. ## Specifications | Attribute | Value | |-----------|-------| | Shackle Inner Width | 0.812 in | | Shackle Inner Height | 2 in | | Shackle Diameter | 0.281 in | | title | Master Lock 510D Warded Steel Padlock, 1-3/4" | ## Last Seen Prices | Retailer | Price | Availability | Last seen | |----------|-------|-------------|-----------| | [Amazon](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/YwHs1Yo8qEUZjKX7pu5V?source=shopsavvy&medium=product-page) | $1.99 | In Stock | 2025-06-08 (may have changed) | | [Frrjejxssoez](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/YawfGt27kf3BFcHtTzoj?source=shopsavvy&medium=product-page) | $4.75 | In Stock | 2025-06-08 (may have changed) | | [retailers/jpccatalog](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/rc2B4aeHlEMw1H8hbBnO?source=shopsavvy&medium=product-page) | $5.77 | In Stock | 2025-06-08 (may have changed) | | [The Outdoor Warehouse](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/y0f5my0JeGv9zos332ie?source=shopsavvy&medium=product-page) | $6.09 | In Stock | 2025-06-08 (may have changed) | | [Taylor Security & Lock](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/YiStzb33Y7xMQiTKtRn3?source=shopsavvy&medium=product-page) | $6.14 | In Stock | 2022-08-15 (may have changed) | | [Grainger Industrial Supply](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/hDIcI1ZagjD07uvHt5GV?source=shopsavvy&medium=product-page) | $6.25 | In Stock | 2025-06-08 (may have changed) | | [eBid](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/mTEyKJxbF6lLzBCW9Yki?source=shopsavvy&medium=product-page) | $6.40 | In Stock | 2025-06-08 (may have changed) | | [Ideal True Value Home Center](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/YUjekGZocGYuz0bJynJm?source=shopsavvy&medium=product-page) | $6.41 | In Stock | 2022-08-10 (may have changed) | | [Wylaco Supply Company](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/UqUne3K1NdHTMs7NTboi?source=shopsavvy&medium=product-page) | $6.43 | In Stock | 2022-08-15 (may have changed) | | [Hardware & Moreee](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/MmJOdMVkTRom7e8Y3DGu?source=shopsavvy&medium=product-page) | $6.54 | In Stock | 2025-06-08 (may have changed) | | [MID Hardware](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/H7uLt8tQluzKYbpY8H7o?source=shopsavvy&medium=product-page) | $6.63 | In Stock | 2025-06-08 (may have changed) | | [retailers/maxwarehouse](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/FJVcstr6tydeQasKxUoH?source=shopsavvy&medium=product-page) | $7.04 | In Stock | 2025-06-08 (may have changed) | | [retailers/thepaintstore](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/fb1f0179-e8bc-7bdc-c87c-ac6b8b1a1fbb?source=shopsavvy&medium=product-page) | $7.07 | In Stock | 2025-06-08 (may have changed) | | [Builders Blvd](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/3l3BuiMaoeJWuUwe96CB?source=shopsavvy&medium=product-page) | $7.10 | In Stock | 2025-06-08 (may have changed) | | [Builders Sale](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/qT5f4bVJPP2754MBdbBo?source=shopsavvy&medium=product-page) | $7.10 | In Stock | 2025-06-08 (may have changed) | | [Finest Hardware](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/BSPjKIOYBXJx9ocxN72l?source=shopsavvy&medium=product-page) | $7.10 | In Stock | 2025-06-08 (may have changed) | | [SafeWise Security](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/NE7mScYT8hlogBvYqxYm?source=shopsavvy&medium=product-page) | $7.10 | In Stock | 2025-06-08 (may have changed) | | [Ideal True Value Home Center](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/i6HTfusmfvZhj0cunWXm?source=shopsavvy&medium=product-page) | $7.11 | In Stock | 2025-06-08 (may have changed) | | [Cox Hardware and Lumber](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/pjbmYhk3t7QXAcTsOsYp?source=shopsavvy&medium=product-page) | $7.29 | In Stock | 2022-08-15 (may have changed) | | [retailers/shelllumber](https://shopsavvy.com/api/redirect/products/P4shIKyBPBy89eMyAAui/offers/DDIiBNNZuGMPRa4vl0tK?source=shopsavvy&medium=product-page) | $7.31 | In Stock | 2025-06-08 (may have changed) | [See every retailer and the full price history on ShopSavvy](https://shopsavvy.com/products/master-lock-510d) --- *About this page: ShopSavvy compares prices across thousands of retailers, aggregates expert and user reviews, and tracks price history to help you make informed buying decisions. 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