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Gippsland Bolts and Fasteners have many years of experience supplying high quality Hobson petrochemical studbolts. Available in a range of standard and specialized coatings such as inorganic zinc silicate, 1PX1 (Moly), and xylan 1424 series - blue and green. Grade B7 studbolts manufactured to ASTM A193/A193M and Grade 2H Heavy hex nuts to ASTM A194/A194M are available from our store and also other grades and coatings are available upon request. These studbolt kits are offered in various standard sizes but can also be made to your specifications.

Studbolts are relied upon to perform a critical role, so therefore you can rely on the quality and experience of Hobson petrochemical studbolts available from Gippsland Bolts and Fasteners. Having supplied studbolts to Australian industry for many years, you can depend on the quality of Hobson petrochemical studbolts, together with the expertise of Gippsland Bolts and Fasteners. Quality and service ensure that we are "bolts ahead of the rest".

Available Coatings

Mechanical Plating

Recommended on high tensile fasteners up 2” diameter and 14” in length.Benefits:
  • No Hydrogen embrittlement
  • No blocked threads
  • Excellent corrosion protection
  • Consistent thickness and uniformity
  • High quality finish

Inorganic Zinc Silicate

Highly recommended for extremely corrosive environments.
  • No hydrogen embrittlement
  • Superb corrosion protection up to 2000 hours
  • High quality finish
  • Consistent thickness
  • 25-35 micron of Zinc
  • No blocked threads

1PX1 (Moly)

  • Thread lubricant is part of the fastener
  • Greatly reduced friction co-efficient
  • Excellent corrosion resistance up to 350 degrees C
  • Excellent resistance to both acids and alkalines
  • Well proven in the market place

Xylan 1424 Series - Blue and Green

  • Thread lubricant part of fastener
  • Greatly reduced friction co-efficient
  • Excellent corrosion resistance. <15% red rust after 1488 hours salt spray
  • Reduces make up torque by as much as 70%
  • Operating temperature -40 degrees C to 205 degrees C.

Other Coatings Available

  • Cadmium
  • Phosphate and Oil
  • PTFE
  • Flourocarbon
  • Hot Dipped Galvanised
  • Zinc Plated

Other Grades also Available

  • L7 and L7M
  • B16
  • B5
  • B6
  • B8 class 1 & 2
  • B8M class 1 & 2
  • B8T