Strattec Security Corporation | 6,464 followers on LinkedIn. Strattec, headquartered in Milwaukee, is one of the world's largest producers of automotive locks and keys. | Strattec Security Corporation, headquartered in Milwaukee, Wisconsin, is one of the world's largest producer of automotive locks and keys. STRATTEC designs, develops, manufactures and markets mechanical locks, electronically enhanced locks and keys, and ignition lock housings; access control products, including latches, power sliding door systems, power lift gate systems, power deck lid systems, door handles and related access control products for North American and global automotive customers. STRATTEC ships products to customer locations in the United States, Canada, Mexico, Europe, South America, Korea and China, and provides full service aftermarket support.