Manufacturer, stockist and supplier · Supplying GCC, Southeast Asia, Europe, United States, United Kingdom & India

ramesh@brighttubes.in · +91 98200 74585

26 grades 3 material families

Bolts

Bolts include stud bolts, hex bolts, heavy hex bolts, threaded rod and U-bolts, used to join flanges, structures and equipment. Bolting grade must suit the joint's pressure, temperature and corrosion environment.

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Bolts M6 – M100 and ¼" – 4" (larger
On this page 6 sections
  1. Types
  2. By material
  3. Manufacturing
  4. Sizes & testing
  5. Marking & packing
  6. FAQs

Types of bolts

Stud BoltsStud bolts are fully threaded rods cut to length with chamfered ends, fitted with two heavy hex nuts.Hex & Heavy Hex BoltsHex bolts have a forged hexagonal head and a partial or full thread, and are used for structural steel, equipment and machinery.Threaded RodsThreaded rods (all-thread) are continuously threaded bars supplied in standard lengths or cut to size for studs, anchors and hangers..U-BoltsU-bolts are bent rods threaded on both legs, used to clamp pipes to supports.

Bolts by material

Stainless Steel Bolts

Nickel Alloys Bolts

Non-Ferrous Metals Bolts

How they are made

Cut from heat-treated bar (or forged and heat treated), then threaded by rolling or cutting, and coated if required.

Bolts: how they are made, sized and tested

Bolts M6 – M100 and ¼" – 4" (larger

How it's madeCut from heat-treated bar (or forged and heat treated), then threaded by rolling or cutting, and coated if required.

Size range
M6 – M100 and ¼" – 4" (larger on request); lengths to flange tables or drawing
Finish
Plain, black oxide, zinc, hot-dip galvanised, PTFE-based fluoropolymer, zinc-nickel
Ends
Chamfered points; full or partial thread

Testing & documents

  1. Chemical and mechanical tests of bar and finished bolts
  2. Hardness tests
  3. Proof-load and wedge tests where applicable
  4. Coating thickness and adhesion
  5. EN 10204 3.1 certificate; 3.2 with third-party inspection

Marking and packing

Marking: Grade symbol (e.g. B7, B8M) and manufacturer's mark on the end or head.

Packing: Cartons or wooden boxes with size and grade labels.

Frequently asked questions

What is a stud bolt?

A threaded rod without a head, fitted with a nut on each end. It's the standard bolting for pipeline flanges.

Which materials are bolts available in?

Stainless Steel, Nickel Alloys, Non-Ferrous Metals: 26 grades in total, from stock or mill-sourced.

What sizes of bolts do you supply?

M6 – M100 and ¼" – 4" (larger on request); lengths to flange tables or drawing.

How are bolts tested?

Chemical and mechanical tests of bar and finished bolts; Hardness tests; Proof-load and wedge tests where applicable.

Need bolts?

Send grade, specification, size and quantity. We reply with availability and documentation.

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