Overview
Tendon Metal Products Co., Ltd. manufactures ASTM A194 Grade 2H heavy hex nuts for high-temperature and high-pressure bolting assemblies. Grade 2H nuts are commonly paired with ASTM A193 Grade B7 stud bolts for petrochemical, pressure vessel, piping and industrial equipment applications.
Technical Specification Overview
| Standard | ASTM A194 / ASME B18.2.2 |
|---|---|
| Grade | ASTM A194 Grade 2H |
| Material | Medium-carbon steel; material requirements confirmed against the applicable specification |
| Hardness | HRC 22–28 |
| Thread Options | UNC, UNF or metric, subject to order requirements |
| Surface Finishes | Plain, black oxide, hot-dip galvanized, zinc plated or PTFE coated, subject to specification |
| Compatible Fasteners | ASTM A193 B7 and A320 L7 studs, plus compatible heavy hex bolts |
| Documentation | Inspection, material and traceability documents confirmed for each order |
Quality and Supply Information
- Inspection: Hardness, dimensions and thread fit are inspected according to the applicable order requirements.
- Management systems: ISO 9001 and ISO 45001 certificates are currently valid.
- Traceability: Production and material records are managed through the manufacturing process; the documentation scope is confirmed with the order.
- Capacity: Annual production capacity is approximately 6,000 tons across the factory’s fastener range.
Ordering Information
Provide the stud grade, nut size, thread requirement, quantity, surface finish and required inspection documents when requesting a quotation. Stock status, production lead time, packaging and shipping terms are confirmed for each enquiry.
Related Grade 2H Nut Resources
- Review the complete guide to ASTM A194 Grade 2H heavy hex nut specifications.
- Pair these nuts with our ASTM A193 B7 stud bolts.
- Learn about B7 stud bolt dimensions and industrial applications.
For matched stud-and-nut assemblies, request a fastener quotation.
