Diameter
M12–M100 / 1/2–4 inLoading DOKA
Industrial supply solutions
Product detail · Special Fasteners
Flange studs are fully threaded fasteners used with nuts at both ends to provide clamping force in piping-flange and pressure-equipment connections.
ASTM A193 · ASTM A320 · ASTM A194 · ASME
Product approach
Flange studs are used with matching nuts and, where required, washers in flanged connections for oil and gas, petrochemical and power applications.
Project-specific scope is established by reviewing the standard, material grade, diameter, length, thread system, nut and washer pairing, finish, service conditions, required testing and certification together.
Related technical resources: Special Fasteners · Galvanized Parts · ASTM A320 L7 technical guide
Technical data
The values below describe typical supply capability. Final scope is confirmed against project drawings and specifications.
Diameter
M12–M100 / 1/2–4 inThread
Metric / UNC / 8UNLength
Standard / customNuts
ASTM A194 gradesTesting
Mechanical / impact as requiredCertification
EN 10204 3.1Material grades
Finish options
Applications
Manufacturing & delivery flow
Drawings, specifications, materials, dimensions and documentation requirements are reviewed.
Approved material is sourced with heat number and certificate traceability.
Raw material is processed through the required cutting and preparation operations.
Threading, drilling, CNC, forming or welding operations are completed.
Required galvanizing, paint or special coating systems are applied.
Dimensional, visual and specification-related tests are completed.
Records are compiled and products are tagged and packed for export.
Export documentation and logistics are coordinated around the project schedule.
Quality & documentation
The documentation scope is defined during quotation against the order and project specification.
Material certification and heat traceability
Chemical analysis and mechanical properties
Checks against drawings and tolerances
Cutting, machining and assembly controls
WPS/PQR and welder qualifications when required
Galvanizing or paint process records
Certificate of Origin, ISO and manufacturer profile
Technical submittal and approval dossier
Product & delivery gallery
RFQ
For quotation review, share the standard or technical specification, diameter and length, thread system, quantity, material grade, nut and washer requirements, finish, service conditions, testing and certification requirements.