American Casting & Manufacturing: A Tradition of Excellence

American Casting & Manufacturing is proud to provide high quality high-security and tamper-evident metal, plastic, and adhesive seals, providing optimal security and service to business owners in need. We provide standard and custom seals numbered and imprinted, all the while focusing on customer service, innovation, and affordability. Our wide selection of seals and advanced technology keep you up to date with your security needs.

We have a proud history dating back to 1910. Nonetheless, we continue to grow along with the industry. Brothers Norman and Harry Wenk began the company in 1910 out of their garage. They created lead roofing washers, often used as sealant to fasten metal roofs. Their impact on construction industry was undeniable.

From their, the brothers' expertise grew to lead and wire seals. They began making lead seals with wires, using them as tamper-indicating devices. They would also develop seals for railroad truck doors and other applications in need of security.

Norman and Harry became known for their quality seals. Thus, the company grew, which allowed them to make seals out of metal stampings. These were used for padlock-type seals, metal strip seals, electric and water meter seals and more. The Wenk family kept the business in Brooklyn until 1961, shifting their efforts to Plainview, NY.

Today, we are a fourth generation family-owned business. Norman and Harry’s sons, grandsons, and great-grandsons joined them at AC&M. This became a family tradition and is kept going with a passion for delivering the finest quality products.

The world changed significantly in the last 110 years. However, one thing hasn’t changed: our commitment to providing the most reliable tamper evident security seals. While their needs have changed, as well as their goals in terms of security, the knowledge that our products are safe and secure will always be a business priority for not only our customers but us as well.