Stud Bolts & Nuts

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Precision Stud Bolts & Nuts for Critical Applications

Our stud bolts and nuts are engineered to provide secure, reliable fastening in high-pressure and high-temperature environments. Manufactured from premium-grade materials and compliant with international standards, they are ideal for flange connections in oil & gas, petrochemical, power, and industrial piping systems. Designed for strength, durability, and precision, QPS stud bolts and nuts ensure long-lasting performance and safe operation across demanding projects.

Carbon Steel Stud Bolts

SIZE MATERIALS GRADE & STANDARD SPECIFICATIONS GRADES TYPES COATING LENGTH THREAD ORIGIN
1/2" to 4"
(ASME B16.5, ASME B16.47)
  • ASTM A193 B7 (Grade B7)
  • ASTM A194 2H (Grade 2H)
  • ASTM A320 L7 (Grade L7)
  • B7 – High Strength
  • L7 – Low Temperature
  • B7M – SSC Resistant
  • Stud Bolts with 2 Nuts
  • Stud Bolts with 1 Nut
  • Double End Stud Bolts
  • Fully Threaded Stud Bolts
  • Zinc Plated
  • Hot Dip Galvanized
  • PTFE Coated
  • 2" to 12"
  • Custom lengths available
  • UNC
  • UNF
  • 8UN
  • India
  • China
  • Japan
  • South Korea
  • Europe
  • USA

Stainless Steel Stud Bolts

SIZE MATERIALS GRADE & STANDARD SPECIFICATIONS GRADES TYPES COATING LENGTH THREAD ORIGIN
1/2" to 4"
(ASME B16.5, ASME B16.47)
  • ASTM A193 B8 (304, 304L, 316, 316L)
  • ASTM A193 B8M (316, 316L)
  • ASTM A320 B8 (304, 304L, 316, 316L)
  • B8 (304, 304L)
  • B8M (316, 316L)
  • B8T (321)
  • B8C (347)
  • Stud Bolts with 2 Nuts
  • Stud Bolts with 1 Nut
  • Double End Stud Bolts
  • Fully Threaded Stud Bolts
  • Passivated
  • PTFE Coated
  • 2" to 12"
  • Custom lengths available
  • UNC
  • UNF
  • 8UN
  • Europe
  • India
  • China
  • Japan
  • South Korea
  • USA

Carbon Steel Stud Bolts

Stainless Steel Stud Bolts