American Upholstery Co

Hill Design Products, Inc. is a leading provider of custom molding-design and assembly for the modular home and residential window industries. With a focus on quality components, they offer a wide range of products including recessed tilt latches, surface tilt latches, muntin parts, precision coil springs, screen components, weep vents, balance components, precision rollers, and CertainTeed components. Located in McHenry, IL, Hill Design Products, Inc. is dedicated to delivering top-notch solutions that meet the highest standards of craftsmanship. Their expertise and commitment to excellence make them a trusted choice for businesses in need of reliable and customized components for their modular homes and residential windows.Generated from the website

Mastercoil Spring is one of the leading manufacturers of tight tolerance - light wire, (.012 - .135) Springs in the U.S. Based in McHenry, Ill., the company is ISO 9001 - 2000 registered and is a certified supplier that develops a "food grade" passivation process to fit its customer's requirements. It specializes in CAD capability, quality programs exceeding industry standards, in- house tooling, in - line heat-treating, stocking programs to fit J I T requirements, computerized scheduling, grinding and many more.