Fastener Specifications

Our team provides industrial fasteners in numerous standards and materials; check the table below for all currently available sizes and finishes.

Parameter Details
Standards ASTM A193
Materials Carbon Steel, Alloy Steel, Stainless Steel (304, 316, 321, 410), Duplex, Inconel, Monel
Strength Classes SAE Grade 2, 5, 8 / ISO Class 4.6, 8.8, 10.9, 12.9 / ASTM A193 B7, B8, B16
Thread Types UNC, UNF, Metric Coarse, Metric Fine, BSW, BSF
Size Range M3 to M100 (Metric) / 1/4" to 4" (Imperial)
Length 10 mm to 3,000 mm; custom lengths on request
Finish Plain, Zinc Plated, HDG, Cadmium, PTFE, Phosphate, Black Oxide
Forms Hex Bolts, Socket Head Cap Screws, Studs, Nuts, Washers, Anchor Bolts, U-Bolts, Rivets

Metric Fastener Sizes

The following table details the dimensional range and standards for metric bolts, nuts, and high-strength friction grip (HSFG) components.

Component Type Size Range Standard / Specification
Metric Bolts M6 to M100 ISO 898, DIN 931, DIN 933
Metric Nuts M3 to M100 DIN 934, ISO 4032
HSFG Bolts M12 to M36 IS 3757
Threaded Rods Up to 6,000 mm length Standard Metric Thread

Imperial / Inch Fastener Sizes

Consult the table below for imperial fastener dimensions, covering UNC and UNF thread profiles according to American standards.

Component Type Size Range Standard / Specification
Imperial Bolts 1/4" to 4" ASTM A307, A193, F3125
Imperial Nuts 1/4" to 4" ASTM A194
Thread Lengths 10 mm to 3,000 mm UNC / UNF Thread

Fastener Finishes and Coatings

  • Hot-Dip Galvanised (HDG)
  • Galvanised Iron (GI)
  • PTFE Coating
  • Cadmium Coating

Fastener Material

The data presented in the table below comprehensively delineates specific grades and their corresponding strength levels.

Stainless Steel Fasteners

Carbon Steel Fasteners

Alloy Steel Fasteners

Mild Steel Fasteners

Titanium Fasteners

Hastelloy Fasteners

Duplex Steel Fasteners

Super Duplex Fasteners

Inconel Fasteners

Monel Fasteners

Types of Fasteners

We manufacture and supply 7 major types of fasteners: bolts, nuts, screws, washers, studs, anchors, and rivets in carbon steel, alloy steel, and stainless steel.

Bolts

Bolts

Nuts

Nuts

Screws

Screws

Washers

Washers

Studs & Threaded Rods

Studs & Threaded Rods

Anchors & Anchor Bolts

Anchors & Anchor Bolts

Rivets

Rivets

Fastener Price

Prices range from ₹50 to ₹5,000 ($0.60-$60) per kg. Carbon steel is economical (₹50-₹500), while stainless and alloy steels reach ₹2,000-₹5,000+. Hot-dip galvanised finishes add a 15%-25% premium. Prices vary by material, grade, and order quantity.

Request a Quote for Fasteners Request a Quote

Fastener Industrial Applications

Since Sachiya Steel International distributes industrial fasteners to 4 key industries, the company ensures that each product satisfies the requirements of third-party inspections and the standards that are relevant to the project.

Oil & Gas & Petrochemical

ASTM A193 B7 studs prevent seal leaks during high-pressure hydrocarbon processing. We supply them for flange bolting, refinery piping, and offshore platforms.

Construction & Infrastructure

Applied in steel-framed buildings, bridges, and flyovers. HSFG bolts provide the necessary shear resistance to secure massive structural steel frameworks safely.

Power Generation

Essential for steam turbine flanges, boiler connections, and nuclear reactors. High-temperature B16 studs survive the extreme thermal stresses of continuous energy production.

Automotive & Heavy Engineering

Standard for engine assemblies, chassis connections, and heavy machinery. Grade 8 and Class 10.9 bolts handle the intense vibrations of industrial vehicles.

Shipping & Packaging

Main export packaging setup Heavy-duty wooden boxes Packing
Export Packaging Standard

We strictly follow seaworthy export handling standards to protect fasteners from transit damage, moisture ingress, and surface contamination during long-distance dispatch.

  • Heavy-duty wooden boxes with moisture barrier lining
  • HDPE stretch film wrapping on all bundles
  • Plastic end caps on threaded and plain-end pipes
  • Silica gel desiccants to minimize moisture exposure
  • ISPM-15 fumigated wooden packaging for export
Bundle Yard Staging Fasteners Bundle Yard Staging
 Bundle Edge Protection Container End-Cap Protection
Export-Ready Bundles Wrapped Export-Ready Bundles

We Export Worldwide

Sachiya Steel International supplies industrial fasteners to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.

  • USA flagUSA
  • Canada flagCanada

Frequently Asked Questions

What types of Fasteners do you supply?+
We supply 7 major types: bolts (hex, anchor, U-bolt, SHCS, and flange); nuts (hex, heavy hex, nylock, flange, and castle); screws (machine, self-drilling, and set screws), washers (flat, spring, and Belleville); studs and threaded rods; anchor fasteners; and rivets.
What materials are your Fasteners available in?+
Our fasteners are available in carbon steel (Grade 2, 5, 8), alloy steel (ASTM A193 B7/B16), stainless steel (304, 316, 321, and 410), and speciality alloys, including duplex, Inconel, and Monel.
What is the difference between Grade 5 and Grade 8 Fasteners?+
Grade 5 fasteners have a tensile strength of 827 MPa (120,000 psi) and suit automotive and general structural use. Grade 8 fasteners reach 1,034 MPa (150,000 psi) and are specified for heavy-duty, high-stress industrial applications.
What is the price of industrial Fasteners in India?+
Fastener prices range from Rs.50 to Rs.5,000+ per kg based on material grade, size, strength class, surface finish, and order quantity. Request a quote for accurate project pricing.
What sizes of Fasteners are available?+
We stock fasteners from M3 to M100 in metric and 1/4" to 4" in imperial thread. Lengths range from 10 mm to 3,000 mm. Threaded rods go up to 6,000 mm. Custom sizes are manufactured to the drawing.
What international standards do your fasteners conform to?+
Our fasteners conform to ASTM A193, A194, A307, F3125, F593, ISO 898, ISO 3506, DIN 931/933/934, IS 1363/1364/3757, BS 3692, JIS B 1180/1181, and GB/T 5782/5783.
Do you supply HSFG bolts and high-tensile fasteners?+
We supply HSFG bolts per IS 3757 and ASTM F3125 (replacing A325/A490) in Class 10.9 and 12.9 strength ratings. HT bolts in Grade 8 and Class 10.9 are stocked in all standard sizes.

Contact Us for Availability & Custom Fastener Requirements. Request a Quote