01
B-01
Hex Head Bolts
Standard six-sided head profile for wrench-driven assemblies across industrial and automotive use.
- SizeM5-M30
- GradeClass 8.8-12.9
- StandardDIN 931 / 933
Products · Bolts & Studs
High-tensile bolts and studs for critical applications.
Cold forging and machining processes engineered for strength, dimensional accuracy and reliability.
Overview
Built for demanding applications.
We manufacture a wide range of high-tensile bolts and studs using cold forging and machining processes. Our bolts and studs are designed for demanding applications where strength, dimensional accuracy and reliability are critical.
Applications include automotive engines, transmissions, chassis, structural assemblies and industrial equipment.
01 · Product Types
The catalog,
in eight families.
Each family is manufactured to global standards and customisable to your drawing.
02
B-02
Hex Flange Bolts
Integrated washer flange distributes load and resists loosening under vibration.
- SizeM6-M24
- GradeClass 8.8-10.9
- StandardDIN 6921
03
B-03
Socket Head Bolts
Internal hex drive cap screws for high-strength, low-clearance fastening.
- SizeM3-M24
- GradeClass 10.9-12.9
- StandardDIN 912 / ISO 4762
04
B-04
Square Neck Bolts
Carriage-style anti-rotation profile for structural and wood-to-metal joints.
- SizeM6-M20
- GradeClass 4.6-8.8
- StandardDIN 603
05
B-05
Wheel Bolts
Precision automotive wheel bolts with conical, ball or flat seats per OEM spec.
- SizeM12-M22
- GradeClass 10.9
- StandardOEM drawings
06
S-01
Fully Threaded Studs
End-to-end threaded rods for clamping, suspension and structural applications.
- SizeM5-M30
- GradeClass 8.8-12.9
- StandardDIN 976
07
S-02
Partially Threaded Studs
Plain shank with threaded ends for accurate alignment and load transfer.
- SizeM6-M30
- GradeClass 8.8-10.9
- StandardDIN 939 / 938
08
S-03
Engine & Automotive Studs
Cylinder head, manifold and chassis studs engineered to OEM tolerances.
- SizeM6-M20
- GradeClass 10.9-12.9
- StandardCustomer spec
02 · Range & Standards
Specifications,
at a glance.
From M5 fasteners to long-shank engine studs, manufactured in metric and inch, certified to global standards.
Manufacturing
Range
- Diameter
- M5-M30
- Length
- Short to long
- Process
- Cold / hot forged
- Units
- Metric & inch
Mechanical
Grades
- Property class
- 4.6-12.9
- Automotive
- Yes
- Industrial
- Yes
- Special
- On request
Compliance
Standards
- International
- ISO · DIN
- American
- ASTM · ANSI
- Japanese
- JIS
- Indian
- IS
03 · Testing, Inspection & Quality
Every fastener, accountable.
Four-stage quality protocol, from raw material to despatch, keeps performance traceable and repeatable.
01
Surface Treatments
Zinc electroplating, phosphating and zinc flake coating for corrosion protection tailored to the operating environment.
02
In-Process Inspection
Dimensional and visual checks at every stage, from wire to finished fastener, for traceable consistency.
03
Mechanical Testing
Tensile, proof load, hardness and torque tests verify each batch meets the specified property class.
04
100% Pre-Dispatch
Optical sorting and manual inspection ensure every piece shipped matches the customer drawing.