Petrochemical Fasteners Manufacturer

TorqBolt is engaged in manufacturing Petrochemical Fasteners meant for use at high temperatures. ASTM & ASME certified petrochemical Bolting for industry level supply is our specialty.

PetroChemical Fasteners Manufacturer

TorqBolt offers an extensive range of Petrochemical Fasteners materials ex-stock including B7, L7, B16, B8, B8M, Duplex and Super Duplex materials from which stud bolts can be manufactured. Imperial and metric diameters, 1/4” – 6”, M6 – M150 are all available with a wide variety of corrosion resistant finishes. TorqBolt has in-house facilities for heat treatment and testing, shot blasting, PTFE coating, phosphate and zinc plating on Petrochemical Fasteners.

PetroChemical Bolting Materials

  • Alloy Steel (ASTM A193 B7/B7M/B16/B6/B6X/B8MLCUN/B8MLCUNA Class 1A & 1B); (ASTM A320 L7/L7M/L43)
  • Stainless Steel (ASTM A193/A320 B8,B8M,B8T Class 1 and 2 A/B/C)
  • Titanium Grade 2 and Grade 5
  • Super Duplex 2507 (S32760); Zeron 100 (UNS S32760‘ A’/FG/FLT); Ferralium 255(UNS S32550)
  • ASTM A1082 Duplex 2205 (S32205); Duplex 31803 (UNS S31803‘); Ferralium 255(UNS S32550)
  • ASTM A453 660 A/B/C/D ; Alloy 20
  • ASTM F467/F468 Monel Alloy 400/k-500/R-405
  • Incoloy 925(UNS N09925); Inconel 825(UNS N08825); 800HT;
    ASTM F467/468 Inconel 625 (UNSN06625); Inconel 600 (UNS N06600);
    ASTM A1014 / B637 Inconel 718 (UNS N07718)

Petrochemical Fasteners types

  • Stud bolts
  • Studding
  • Engineer Studs
  • Waisted Studs
  • Bespoke Bolting
  • Threaded Rod
  • Tap End Studs
  • Hex bolts
  • Hexagon Nuts
  • Socket Head Capscrews

Petrochemical Fasteners Manufacturer certification

Petrochemical grade bolting manufactured to ASTM standards are completely traceable back to their heats and raw material mills. In addition to this PED certified studding with respect to EN 10269 especially for high temperature and low temperature services plays a big role in petrochemical grade bolting.
  • BS EN 10204 3.1 and BS EN 10204 3.2
  • PED 97/23/EC Inclusive of Charpy Impact
  • MerkBlatt AD 2000 W2/W7/W10
  • NACE MR0175/MR0103
Being a Quality Manufacturer of Petrochemical Stud bolts since 1991 with In House Testing Laboratory for Quality Control During Manufacturing and Quality Systems in Place with Full Traceability Inspection Certificates. Petrochemical Studs are accompanied with typical Product Compliance Testing by Independent 3rd Party NABL accredited Testing Facilities.


  • Corrosion Resistance
  • Pressure Vessels
  • Heat Exchanger Pumps
  • Skids
  • Valves & Pumps
  • Well Heads
  • Drilling and Oil Rigs
  • PipeLine Fabrications

Surface Treatments on Petrochemical Fasteners

Surface Treatments and coating division is well equipped with a shot blasting facility used to remove old coatings or weathered metals confirming a smooth finish that ensures any coatings will adhere properly.Below Listed are some of the most common Coatings offered at TorqBolt
  • FlouroCarbon coating (PTFE,XYLAN)
  • Ceramic filled coating (XYLAR)
  • Dacromet Coating(320-500)
  • Hot Dip Galvanizing
  • Electroplating
  • Cadmium Plating
  • MolyKote Coatings
  • Sigma Coatings
  • Zinc Phosphate Coatings
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