Annual Star Pte. Ltd. supplies premium pipes, fittings, flanges, bars, fasteners and copper products for global industries.

Fasteners
Annual Star Pte. Ltd.

Fasteners

Common banner, rich product data, specifications, materials, types, dimensions and applications.

Heavy-Duty Fasteners

Bolts, nuts, washers, studs and threaded rods for critical assembly and maintenance programs. Annual Star Pte. Ltd. supports bulk, project and urgent supply requirements with practical documentation and logistics coordination.

Fasteners
Sizes

M3 to M100, 1/8 inch to 4 inch, custom lengths

Standards

ASTM A193, A194, F593, DIN, ISO, BS, ASME

Threads

Metric, UNC, UNF, BSW, BSF and special threads

Strength

B7, B8, B8M, L7, 8.8, 10.9, 12.9 as applicable

Coatings

Plain, zinc, hot dip galvanized, PTFE, black oxide

Materials & Grades

Stainless Steel, Alloy Steel, Carbon Steel, Duplex, Inconel, Monel

Types & Supply Options


Hex Bolts
Available

Hex Bolts

General and heavy-duty bolting for flanges, structures and equipment.

Stud Bolts
Available

Stud Bolts

Threaded studs for pressure flanges and process equipment.

Nuts
Available

Nuts

Heavy hex, lock nuts and special nuts matched to bolt grades.

Washers
Available

Washers

Plain, spring and hardened washers for load distribution.

Socket Screws
Available

Socket Screws

Compact high-strength screws for machinery and assemblies.

Threaded Rods
Available

Threaded Rods

Cut-to-length threaded bars for installation and maintenance.

Annual Star Pte. Ltd. • Product Specifications

Fastener Materials & Grades

Carbon Steel

Reliable and cost-effective bolting solutions for general construction, structural connections, and low-pressure systems.

  • Standard: ASTM A307, A563 (Nuts)
  • Grades: Grade A, Grade B

Stainless Steel

Highly resistant to rust and corrosion, perfect for chemical, marine, sanitary, and food-processing equipment bolting.

  • Standard: ASTM A193, A194 (Nuts)
  • Grades: B8 (304), B8M (316)

Alloy Steel

High-tensile strength bolts and studs designed for high-temperature and high-pressure applications like valves and flanges.

  • Standard: ASTM A193, A320
  • Grades: B7, B16, L7 (Low Temp)

Duplex & Super Duplex

Exceptional strength and resistance to pitting and stress-corrosion cracking for offshore and harsh chemical environments.

  • Standard: ASTM A1082, A276
  • Grades: UNS S31803, S32750

Common Dimension Chart


Size / Type OD / Range Schedule / Class Thickness / Grade Standard Length / Finish
Hex Bolt M6 - M100 DIN 933 / ISO 4017 8.8 / 10.9 / SS Plain / Zinc / HDG Custom length
Stud Bolt 1/2 in - 4 in ASTM A193 B7 / B8 / B8M / L7 Plain / PTFE 2 nuts available
Heavy Hex Nut 1/2 in - 4 in ASTM A194 2H / 8 / 8M Plain / Zinc Matched grade
Washer M6 - M100 DIN / ASTM SS / Carbon Plain / HDG Flat / Spring
Socket Cap Screw M3 - M36 DIN 912 12.9 / SS Black / Zinc Metric
Threaded Rod M6 - M64 DIN 975 SS / B7 / MS Plain / Zinc 1 m / 2 m / 3 m
Anchor Bolt M12 - M72 Drawing 8.8 / MS / SS HDG L / J / U type
Custom Fastener As drawing Project spec As required As required Machined

Applications


Oil & GasProcess lines, utility piping and shutdown maintenance supply.
MarineCorrosion-aware supply for shipyards, ports and offshore projects.
Power PlantsMaterials for thermal, renewable and electrical infrastructure.
ManufacturingReliable stock for fabrication, machining and production lines.
InfrastructureSupply support for construction, water, rail and public works.
Heat TransferCopper, tube and pipe solutions for HVAC and exchangers.
Chemical ProcessGrades selected for pressure, temperature and corrosion exposure.
MaintenanceFast replacement supply for repair and plant turnaround work.