Stud Bolt & Nut Packs (2"–48")
Stud Bolt & Nut Packs provide a complete hardware solution for securing flanged pipe connections across waterworks, industrial, commercial, and mechanical systems. Designed for 2" through 48" ANSI B16.1 Class 125 flanges, these packs include high-strength stud bolts and matching nuts engineered for durability, corrosion resistance, and long-term reliability.
Available in zinc-plated steel, 304 stainless steel, and 316 stainless steel, these fasteners support a broad range of service environments—from standard water distribution to highly corrosive industrial, chemical, and marine applications.
Every stud bolt is produced according to ANSI B18.2.1 and includes hex nuts manufactured to ANSI B18.2.2, ensuring consistent fit, secure assembly, and industry-standard compatibility. Threading conforms to ANSI B1.1 unified inch screw threads, Class 2A external and 2B internal, providing precise engagement and dependable performance.
Key Features
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Stud bolt & nut packs for 2"–48" flange sizes
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Hardware options include:
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Zinc-Plated Steel
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304 Stainless Steel
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316 Stainless Steel
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Stud bolts manufactured to ANSI B18.2.1
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Hex nuts compliant with ANSI B18.2.2
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Threads meet ANSI B1.1 Unified Inch Screws, Class 2A/2B
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Zinc-plated hardware produced to ASTM B633
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Stainless hardware meets ASTM F593 (bolts) and ASTM F594 (nuts)
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Carbon steel studs manufactured to ASTM A307
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High-strength, corrosion-resistant fasteners for flanged systems
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Compatible with ANSI B16.1 Class 125 flanges
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Ideal for new installations, repairs, and maintenance
Available Material Options
Zinc-Plated Stud Bolt Packs
Durable, cost-effective, and corrosion-resistant—ideal for standard water service, HVAC, and utility applications.
304 Stainless Steel Stud Bolt Packs
Provides enhanced resistance to corrosion, making them suitable for wastewater, industrial processing, and chemical exposure.
316 Stainless Steel Stud Bolt Packs
Premium corrosion resistance for the harshest environments, including marine, chemical, and high-moisture applications.
Ideal Applications
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Municipal water & wastewater systems
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Industrial process piping
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Mechanical & HVAC installations
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Chemical and petrochemical environments
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Marine & offshore applications
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Utility and infrastructure projects
