# Door Reinforcement Lock, 3 in. Stop, Aluminum Construction, Red

**Manufacturer:** Defender Security  
**MPN:** `U 11441`

The Defender Security U 11441 Door Reinforcement Lock is designed to withstand 800 lbs. of force, preventing doors from being kicked in and increasing home security. Made of aluminum with a red bronze finish, this lock is suitable for any swing-in door of any thickness. Installation is easy with the included 3" hardened screws, which require pre-drilling with a 1/8 inch drill bit. The spring-loaded design is child-safe and tamper-resistant, protecting against lock picking and bumping.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Defender Security |
| Manufacturer name | Defender Security |
| Manufacturer | Defender Security, Prime-Line Products |
| CategoryId | 13054 |
| CategoryIdL1 | 27 |
| CategoryIdL2 | 17836 |
| CategoryIdL3 | 4559 |
| CategoryIdL4 | 14056 |
| CategoryL1 | Hardware & Building Materials |
| CategoryL2 | Door Hardware & Components |
| CategoryL3 | Door Accessories |
| CategoryL4 | Door Surface Protection |
| DimensionUnit | inch |
| GraingerSku | U 11441 |
| Extra Product Name | Door Reinforcement Lock, 3 in. Stop, Aluminum Construction, Red |
| UPC | None |
| WeightUnit | lbs |
| extendedLead | 3 |
| jsonUrlData | 924526ffbdad25e5923b |
| moq | 1 |
| MPN | U 11441 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | 0 |
| qtySource | qtyInStockOverride |
| SKU | G300934460 |
| tierMinQty1 | 1 |
| tierPrice1 | 15.21 |
| url | https://www.zoro.com/defender-security-door-reinforcement-lock-3-in-stop-aluminum-construction-red-u-11441/i/G300934460/ |
| AdultProduct | False |
| Asin | B08N6XNSSL |
| Autographed | False |
| Batteries_required | False |
| Brand | Defender Security |
| Bullet_point | ADDITIONAL HOME SECURITY – Use this high security door reinforcement lock for additional home security on any swing-in door of any thickness. It helps to ensure any door cannot be opened from the outs |
| ClassificationId | 511316 |
| Color | Red Bronze |
| Controller_type | Hand Control |
| Currency | USD |
| DisplayName | Lock Replacement Parts |
| Height | 1.5399999984292, 1000, 1474, 16.002, 2000, 3, 3.0, 499, 500, 75 |
| Identifier | 00049793571007, 0049793571007, 049793571007 |
| IdentifierType | EAN, GTIN, UPC |
| Included_components | Door blocker and fasteners |
| ItemClassification | BASE_PRODUCT |
| ItemName | Defender Security U 11441 Door Reinforcement Lock – Add Extra, High Security to your Home and Prevent Unauthorized Entry – 3” Stop, Aluminum Construction, Red Bronze (Single Pack) |
| Item_name | Defender Security U 11441 Door Reinforcement Lock – Add Extra, High Security to your Home and Prevent Unauthorized Entry – 3” Stop, Aluminum Construction, Red Bronze (Single Pack) |
| Item_package_quantity | 1 |
| Item_package_weight | 0.49 |
| Item_type_keyword | door-lock-replacement-parts |
| Item_type_name | Door Reinforcement Lock |
| Item_weight | 0.38 |
| Keyword | 11441 |
| Length | 1.375, 3.9116, 6.299999993574 |
| Link | https://m.media-amazon.com/images/I/318m7Si3hvL._SL75_.jpg, https://m.media-amazon.com/images/I/318m7Si3hvL.jpg, https://m.media-amazon.com/images/I/41ci43XmxBL._SL75_.jpg, https://m.media-amazon.com/ |
| List_price | 21.0 |
| Lock_type | Rim Lock |
| Material | Aluminum |
| Memorabilia | False |
| ModelNumber | U 11441 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G300934460 | 15.21 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/170000000/170024500/part_--U11441---DefenderSecurity--ab460330af.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp