Studs and Nuts
Secure and Durable Fasteners
Heavy Hex nuts, when used with studs, provide a secure and leak-proof connection in flanged systems.
Manufactured in different alloy and strength grades, these nuts are selected according to operating conditions to maximize system safety.
ASTM A194 Gr. 2H
High-strength and the most commonly used nut type.
Used with B7 studs.
✔ Standard industrial use
✔ High strength
✔ Oil, gas, and energy projects
ASTM A194 Gr. 2HM
NACE compliant nuts with low hardness.
Safely used in H₂S (sour gas) environments.
✔ Corrosion resistance
✔ Low hardness
✔ Refinery and chemical plants
ASTM A194 Gr. 7 / 7M
Nuts designed for low-temperature applications.
Used with L7 studs.
✔ Cryogenic systems
✔ Low temperature resistance
✔ LNG and gas applications
ASTM A194 Gr. 4 / Gr. 8
Special alloy and stainless steel nut solutions.
✔ 304 / 316 stainless steel options
✔ Suitable for chemical and marine environments
✔ Long-lasting use
