Security Door Controls Blog

SDC received Exhibitor Loyalty Award at ISC West 2025. Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.

Come visit us at ISC West 2025, booth # 21109! Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.

We’re building more components in-house to diminish supply chain issues, increase quality control and reduce lead times.

We’re building more components in-house to diminish supply chain issues, increase quality control and reduce lead times.

From the SDC family to yours, we wish you a Merry Christmas and a New Year full of success and prosperity. Our office will be closed December 25th and January 1st.

Discover the benefits of using premium, US-made, electrified locking devices. With over 35,000 door hardware components, SDC is The Lock Behind the System.

Come visit us at ISC West 2024, booth # 21109! Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.

Discover the benefits of choosing premium locking devices made in the USA for enhanced security.

Come visit us at ISC West 2024, booth # 21109! Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.

Come visit us at ISC West 2024, booth # 21109! Since 1972, SDC's products have been made in America while most of our larger competitors build overseas.