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Special fasteners: eye bolts and bonnet bolts

Forged bonnet bolts for wellheads, eye bolts, valve components, pins and turned parts: we produce them to the customer's drawings, to industry standards and to ASME standards, through a network of specialised partners.

Bonnet bolts

Up to Ø 350 mm and 130 kg per piece

Hot-forged bonnet bolts for drilling and wellheads, produced by specialised partners with a zero-defect target: materials are checked before delivery, with mechanical testing on sacrificial samples and certified non-destructive testing.

  • Materials chosen by the customer or from our range
  • Custom treatments and coatings
  • Authorised stock in our warehouse, to be called off as needed
Bonnet bolts produced to drawing
Bonnet bolts for wellheads
Bonnet bolts for wellheads
Forged bonnet bolts
Forged bonnet bolts
Bonnet bolt
Bonnet bolt
Machined eye bolt
Eye bolts

Eye bolts for lifting and anchoring

Bolts with a ring-shaped head for cables, ropes and hooks: lifting and handling of loads, cranes, and anchoring in shipbuilding and offshore, industrial construction and building.

In carbon steel, stainless steel or special alloys, from the catalogue or to drawing.

Complementary items

Pins, dowels and turned and ground parts

Small batches as well as large lots for high-volume consumption, delivered in a single shipment or scheduled through our stock management.

Pins

Parallel pins (tolerances h8, h11, m6), taper pins with extraction hole, grooved pins; metric and inch, also in special materials.

To drawing

Pins with grooves for retaining rings, with angles and diameters on request; dowels, bushings, spacers.

Modifications to standard items

Head drilling, cylindrical or conical ends on catalogue items.

Pins and complementary items
Special nuts in different materials
By industry

Specials for every plant

Oil & gasBolting for extreme environments, bonnet bolts, valve components: thrust rings, pins and keys. Oil & gas →
Energy and plant engineeringFasteners for turbines and plants.
AerospaceHigh-precision screws and stud bolts. Aerospace →

All available in high-strength steels or special alloys and, on request, already zinc-plated, nickel-plated, PTFE-coated or heat-treated: see Coatings and treatments.

Send us your drawing, and we will produce and certify the part

Request a quote →