Key Takeaways
- • Rox Capital Partners acquired Interstate Threaded Products, a Dallas-based specialty fastener manufacturer and distributor founded in 1973, establishing the firm's industrial fastener platform with plans for organic growth and add-on acquisitions.
- • The North American industrial fasteners market is valued at $22 billion in 2026 and projected to reach $27 billion by 2031, representing a 4% compound annual growth rate, with externally threaded fasteners accounting for over 52% of revenue by product type.
- • Rick Stone continues as President of Interstate under Rox Capital partnership, with the acquisition supported by structural demand drivers including infrastructure investment, domestic manufacturing reshoring, and U.S. electrification initiatives.
- • Rox Capital, founded in 2017 by Al Cameron and Mark Sparrow, focuses on lower middle-market businesses generating $1 million to $4 million of EBITDA across distribution, manufacturing, industrial, and healthcare sectors, operating as an independent sponsor with offices in Austin and Dallas.
- • Interstate serves mission-critical end markets spanning infrastructure, power generation, construction, telecommunications, industrial manufacturing, and agriculture, positioning the platform for growth aligned with secular tailwinds in energy and industrial expansion.
Summary
Rox Capital Partners has completed the acquisition of Interstate Threaded Products, a specialty fastener manufacturer headquartered in Dallas, to launch its dedicated industrial fastener platform. Founded in 1973, Interstate manufactures and distributes threaded fasteners and custom fastening products serving North American industrial customers across infrastructure, power generation, construction, telecommunications, industrial manufacturing, and agriculture. The company's continuity is secured with Rick Stone remaining President, signaling Rox's commitment to preserving operational management while implementing growth strategies.
The timing of this acquisition aligns with favorable market fundamentals. The North American industrial fasteners market was valued at $22 billion in 2026 and is projected to expand to $27 billion by 2031, reflecting a 4% compound annual growth rate. Externally threaded fasteners—Interstate's core product category—represent more than 52% of North American fastener revenue by product type, indicating concentrated exposure to a dominant market segment. Demand is structurally underpinned by infrastructure investment stimulus, domestic manufacturing reshoring initiatives, and the substantial power generation buildout accompanying U.S. electrification and data center expansion.
Rox Capital, established in 2017 by managing partners Al Cameron and Mark Sparrow, specializes in acquiring lower middle-market businesses with $1 million to $4 million of EBITDA within the distribution, manufacturing, industrial, and healthcare sectors. The firm operates as an independent sponsor, positioning itself as a partner to seasoned management teams rather than a traditional financial buyer. Stone emphasized the partnership's cultural and strategic alignment, noting that "Rox understands our business, respects the culture we have built, and shares our long-term vision." Mark Sparrow highlighted Interstate's "outstanding reputation," "strong market position," and "loyal customer relationships" as key value drivers. The acquisition establishes Interstate as Rox's platform company, with explicit plans to expand through both organic capital investment and strategic add-on acquisitions within the specialty fastener space. This approach leverages the founders' prior fastener industry experience—notably, Rox's first portfolio company, Amifast, was a fastener and hardware distributor acquired in 2017 and subsequently sold to Afinitas in December 2021.
The timing of this acquisition aligns with favorable market fundamentals. The North American industrial fasteners market was valued at $22 billion in 2026 and is projected to expand to $27 billion by 2031, reflecting a 4% compound annual growth rate. Externally threaded fasteners—Interstate's core product category—represent more than 52% of North American fastener revenue by product type, indicating concentrated exposure to a dominant market segment. Demand is structurally underpinned by infrastructure investment stimulus, domestic manufacturing reshoring initiatives, and the substantial power generation buildout accompanying U.S. electrification and data center expansion.
Rox Capital, established in 2017 by managing partners Al Cameron and Mark Sparrow, specializes in acquiring lower middle-market businesses with $1 million to $4 million of EBITDA within the distribution, manufacturing, industrial, and healthcare sectors. The firm operates as an independent sponsor, positioning itself as a partner to seasoned management teams rather than a traditional financial buyer. Stone emphasized the partnership's cultural and strategic alignment, noting that "Rox understands our business, respects the culture we have built, and shares our long-term vision." Mark Sparrow highlighted Interstate's "outstanding reputation," "strong market position," and "loyal customer relationships" as key value drivers. The acquisition establishes Interstate as Rox's platform company, with explicit plans to expand through both organic capital investment and strategic add-on acquisitions within the specialty fastener space. This approach leverages the founders' prior fastener industry experience—notably, Rox's first portfolio company, Amifast, was a fastener and hardware distributor acquired in 2017 and subsequently sold to Afinitas in December 2021.
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