Stud Bolts
Used in flanged joint assemblies. Confirm the exact material, dimensions, pressure class, schedule and documentation against your project requirement.
Specification framework
The values above are industry-standard reference points. Availability, exact dimensions, grade, standard edition, testing and documentation are confirmed per RFQ.
What is a Stud Bolt?
A stud bolt is a fully threaded rod used with two heavy hex nuts to make up flanged joints. Length is selected from the flange class and facing.
Applications
- — Flanged joint assemblies
- — Pressure piping maintenance
- — Equipment and structural fastening
How supply is handled
Omegha Steel is a Kolkata-based manufacturing firm. For each enquiry the requirement is reviewed against the stated standard, grade, size and application, and the documentation available for that supply — including mill test certification and any inspection requirement — is confirmed in writing before order. Nothing is claimed here that is not agreed for your specific order.
To quote accurately we need
- — Size / NPS or NB, and schedule or thickness
- — Material grade and applicable standard
- — Pressure class or rating, where applicable
- — Quantity and required delivery date
- — Documentation and inspection requirement
Stud Bolts — common questions
What is a stud bolt used for?
A stud bolt is a fully threaded rod used with two heavy hex nuts to make up flanged joints. Length is selected from the flange class and facing.
Which standards apply to this product?
ASTM A193 / A193M — alloy and stainless steel bolting for high-temperature service; ASTM A194 / A194M — carbon and alloy steel nuts for pressure vessels and piping; ASME B18.2.1 / B18.2.2 — inch-series bolts and nuts. The applicable standard and its edition are confirmed for each enquiry.
Which materials and grades are available?
ASTM A193 B7 — alloy steel bolting; ASTM A193 B8 / B8M — stainless steel bolting; ASTM A194 2H — carbon steel nuts; ASTM A194 8 / 8M — stainless steel nuts. Availability of a specific grade is confirmed against your requirement.
What size range can be supplied?
Commonly 3/8–4 in diameter; diameter, length, thread and nut pairing to be confirmed from the flange or equipment schedule.
Can mill test certificates be provided?
The documentation available for a given supply — including mill test certification and any third-party inspection requirement — is confirmed in writing at quotation stage.
Do you supply outside Kolkata?
Enquiries from across West Bengal and India are welcome. Delivery timelines and freight are quoted against the destination and quantity.
How do I request a quotation?
Send the size, material, standard, quantity and delivery requirement through the RFQ form or on WhatsApp, and the enquiry will be reviewed and quoted.
Ready to specify Stud Bolts?
Send the size, quantity, material, standard, application and delivery requirement for a focused quotation.
Start RFQ