Dalloyed is a modern fastener website designed for construction, oil & gas, engineering, and industrial businesses.

Stud Bolts & Threaded Rods

High-Pressure Flange Bolting for Oil, Gas & Petrochemicals

Pipeline Grade Fastening

Engineered for Extreme Environments

Dalloyed is a premier manufacturer of high-tensile Stud Bolts and Threaded Rods. Our studs are specifically designed for flange connections in high-pressure piping systems. We specialize in ASTM A193 (High-temp) and ASTM A320 (Low-temp) specifications, ensuring maximum safety in refineries, chemical plants, and power stations.

Whether you need Fully Threaded Studs or Double End Studs, our products offer high fatigue strength and precision threading (UNC/UNF/Metric) to ensure a leak-proof seal in critical joints.

ASTM A193 B7 / B7M ASTM A193 B8 / B8M ASTM A320 L7 / L7M DIN 975 / 976
Stud Bolts Manufacturing

Our Stud Bolt Range

Manufactured with 100% material traceability and MTC 3.1 certification.

Fully Threaded Stud

Fully Threaded Studs

Threads running end-to-end, used primarily for pipeline flanges.

Tap End Stud

Tap End Stud Bolts

Used in assemblies where one end is permanently screwed into a part.

Double End Stud

Double End Studs

Equal thread length on both sides with a plain shank in the center.

Threaded Rod

Threaded Rods

Long bars (1m to 4m) used for hanging, bracing, and general support.

Technical Specifications

Property Range / Standards
Diameter SizeM6 to M100 | 1/4" to 4" Diameter
Standard LengthsAs per requirement (Up to 6000mm)
Thread PitchMetric, UNC, UNF, BSW, BSF
Main StandardsASTM A193, A320, A194, DIN 975, DIN 976, ASME B18.31.2
Popular GradesB7, B7M, B16, B8, B8M (Class 1 & 2), L7, L7M, Stainless Steel 304/316
Advanced CoatingsPTFE (Xylan 1014/1424), Zinc-Nickel, Hot Dip Galv, Cadmium Plating

Critical Industry Applications

Our stud bolts are designed to perform under high stress and thermal expansion.

  • Oil & Gas Exploration & Refineries
  • Chemical & Fertilizer Plants
  • Thermal, Nuclear & Hydro Power Plants
  • High-Rise Structural Steel Buildings

Need a Fast Quote?

We offer bulk export pricing for Stud Bolts with Heavy Hex Nuts as a complete kit.

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