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Fasteners

High-Strength Engineering Fasteners for Piping, Pressure Equipment & Industrial Applications

Indus Trading Co. supplies a comprehensive range of engineered fasteners sourced from qualified, internationally certified manufacturers, serving the oil & gas, petrochemical, power generation, and industrial plant sectors across Pakistan. Our fastener range is manufactured to national and international standards, with full material traceability and third-party inspection capability, making it suitable for demanding service conditions including high pressure, high temperature, and corrosive environments.

Studs & Threaded Rod

  • Double End Studs (full thread and partial thread)
  • Tap End Studs (screw-in type)
  • Threaded Rod (continuous thread)

Standards: ASME B18.2.1 / B18.31.1M / B18.31.2, GB897–GB901, DIN938–940, DIN975/976, HG20613/20634, SH3404

Double end studs, tap end studs, and threaded rod

Bolts

  • Heavy Hex Bolts
  • Standard Hex Bolts
  • Hexagon Socket (Allen) Head Bolts
  • Collar / Shoulder Bolts
  • High-Strength Structural Bolts (for steel structures)
  • Torshear-Type High-Strength Bolts
  • Non-Standard / Custom Bolts (manufactured to drawing)

Standards: ASME B18.2.1 / B18.2.3.5M / B18.2.6M, GB5780–GB5786, DIN931/933, GB/T1228, GB/T3632

Assortment of heavy hex, socket head, and structural bolts

Nuts

  • Heavy Hex Nuts
  • Standard Hex Nuts
  • Stainless Steel Hex Nuts
  • Large-Diameter Nuts (heavy wall, petrochemical service)
  • Nickel Alloy Nuts
  • Non-Standard / Custom Nuts

Standards: ASME B18.2.2 / B18.2.4.1M, GB6170–GB6175, DIN934, GB/T1229

Row of heavy hex, stainless steel, and alloy nuts

Anchor Bolts & U-Bolts

  • Foundation / Anchor Bolts
  • U-Bolts

Standards: ASTM F1554 (Grade 36/55), A307 Grade C, GB799, HG21545, HG/T21629, DIN3570A

Foundation anchor bolts and U-bolts

Washers

  • Plain Washers
  • Tab Washers
  • High-Strength Structural Washers
  • Spherical Gaskets (for large stud connections)

Standards: ASME B18.22.1, GB95–GB854, DIN126/732, GB/T1230

Plain, tab, and structural washers