Highland Threads offers virtually unlimited in-house production. The location s18-acre complex, which is located north of Houston, includes 152,000 square feet of enclosed manufacturing space. A fully integrated facility, Highland is a leader in the production of hot-formed bolts and nuts in the United States. Its manufacturing plant yields large quantities of these products daily in diverse applications, which are customized to exact specifications. Special and custom parts are manufactured from blueprints that are either provided by the customer or generated at Highland Threads.