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Products

Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
Stud Bolts
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Stud Bolt – ASTM A193 B7 / B8 / B8M Double Ended & Fully Threaded Stud Bolts for Flange Connections, Pressure Vessels & High-Pressure Piping Systems. Manufactured to ASTM A193, ASTM A320, ASME B16.5, DIN 976 standards. Materials: Alloy Steel (Grade B7/B7M/B16), Stainless Steel (Grade B8/B8M Class 1 & 2, 304/316), Carbon Steel. Available Types: Fully Threaded (Continuous Thread), Double-Ended (Equal Thread Length), Tap-End (Unequal Thread Length). Diameters from 1/4″ to 4″ (imperial) / M6 to M100 (metric). Surface Finishes: Plain, Zinc Plated, Hot-Dip Galvanized, Black Oxide, Xylan Coating, Zinc-Nickel Plating. Supplied with ASTM A194 Grade 2H / 8 / 8M heavy hex nuts. Ideal for ASME B16.5 / B16.47 flanged joints, heat exchangers, valve assemblies, and oil & gas pipeline systems. ISO 9001:2015 certified. [OEM & custom lengths available.]

  1. , power, chemical, and marine industries.

  2. Multiple Type Options – Fully threaded (continuous), double-ended, and tap-end stud bolts available to match specific flange connection or machinery assembly requirements.

  3. Complete Assembly Packages – Stud bolts supplied with matching ASTM A194 heavy hex nuts (Grades 2H/8/8M) and washers as required for a complete flanged joint solution.

  4. ISO 9001:2015 Certified Quality Assurance – Rigorous in-line inspections using calibrated thread gauges, pre-shipment quality checks, and mill test certificates (MTC) provided with every shipment. Premium-grade stud bolts maintain ≤0.2% defect rates through automated optical inspection systems.

  5. Custom Lengths & OEM Support – Standard lengths from 3ft to 12ft (imperial) or 1000mm to 3000mm (metric), with custom lengths up to 6000mm available. OEM orders and non-standard diameters welcome.

  6. Global Export Experience – With over 20 years of fastener manufacturing and export experience, Malaxy serves clients across Europe, North America, the Middle East, Southeast Asia, and beyond.

Packing & Delivery

  • Packing: Standard export packing (cartons + wooden pallets) with rust prevention; individual labeling for batch traceability

  • Delivery Terms: FOB Shanghai, CIF, CFR, EXW

  • Payment Terms: T/T, L/C, or negotiable

  • Lead Time: 7–30 days after order confirmation, depending on quantity and specifications