Fasteners.
Fastening systems sourced as compatible assemblies, with material, class, coating, thread, test and traceability controlled together.
Defined by the requirement.
We coordinate the sourcing route around material, condition, dimensions, quantity, applicable standard, inspection, documentation and delivery. Manufacturing and processing routes are selected to suit the complete requirement.
| Form / type | Sourcing context |
|---|---|
| Stud bolts | Full-thread and tap-end studs with compatible nuts. |
| Bolts and screws | Hex, socket and drawing-specific geometries. |
| Nuts | Heavy hex, prevailing-torque and special machined forms. |
| Washers | Plain, hardened, spring and specification-controlled types. |
Materials in product context.
| Material family | Representative grades | Product / standard route | Typical application context |
|---|---|---|---|
| Stainless Steel | B8/B8M; F593 groups; F594 groups | Studs, bolts, nuts and washers | Pressure joints and corrosion-resistant assemblies |
| Alloy Steel | B7, B7M, B16; A194 2H/2HM/7 | High-strength stud-bolt assemblies | Pressure vessels, piping and equipment |
| High-temperature alloys | A453 Grade 660; Alloy 718 routes | Bolts, studs and special fasteners | Power, aerospace and elevated-temperature equipment |
| Non-ferrous alloys | ASTM F468/F467 aluminium, copper and nickel alloys | Bolts, screws, studs and nuts | Electrical, marine and corrosion-sensitive assemblies |
Technical data is provided for preliminary sourcing guidance. The applicable customer specification, drawing, purchase order and latest standard revision govern each requirement.
Common specification routes.
| Product route | Principal standards | Requirement focus |
|---|---|---|
| High-temperature bolting | ASTM A193/A193M | Grade, class, heat treatment and test requirements |
| High-pressure nuts | ASTM A194/A194M | Compatible grade, proof load and hardness |
| Stainless bolts and nuts | ASTM F593; ASTM F594 | Alloy group, condition and mechanical properties |
| High-temperature special bolting | ASTM A453/A453M | Grade, class and heat treatment |
| Non-ferrous fasteners | ASTM F468; ASTM F467 | Alloy, temper and mechanical requirements |
| Metric stainless fasteners | ISO 3506 series | Property class, marking and test requirements |
Technical data is provided for preliminary sourcing guidance. The applicable customer specification, drawing, purchase order and latest standard revision govern each requirement.
Control from enquiry to release.
Bhansali reviews requirements and documentation. QA/QC is coordinated by the in-house Bhansali team, material testing is verified through independent laboratories, and third-party inspection can be coordinated through agencies such as TÜV, SGS and Lloyd’s.
Review can include material certificates, heat traceability, manufacturing records, dimensional reports, NDE, test results, marking, packing and the final documentation package.
Connect form, material and application.
Send the complete fasteners requirement.
Include material, grade, standard, dimensions, quantity, testing, documentation and delivery need.
SEND AN RFQ ↗