Standards | ASTM, DIN, BS, NACE, API Fastener Standards | Akbar Fasteners
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ASTM · DIN · BS · IS · NACE · API · ISO 9001:2015

Every Standard.
Certified.

Akbar Fasteners manufactures to all major international fastener standards — ASTM A193/A194, ASME B18.2, DIN 931/933/934, BS 4882, IS 1367, NACE MR0175 and API 20E. Every order ships with full Mill Test Certificates, Certificate of Conformance, and third-party inspection reports. Our ISO 9001:2015 certified quality system ensures dimensional, mechanical, and chemical compliance at every stage — from raw material receipt to final dispatch.
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Quick: A193 B7 · Duplex · NACE · DIN · API 20E · BS  |  40+ standards
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International Standards We Supply To

Every standard is manufactured to specification in our Mumbai facility and shipped with complete documentation including MTC, COC and third-party reports.

Quick Reference

Standard ↔ Material Cross-Reference

Which standard applies to which material? Use this table to match your required standard to the correct material grade.

Scroll table for all columns
Standard / Grade SS 304/316Alloy B7Duplex 2205 Inconel 625Monel 400Hastelloy C276Gr 8.8/10.9
ASTM A193✓ B8/B8M✓ B7/B7M✓ B8LN✓ B8T
ASTM A194✓ 8/8M✓ 2H/2HM✓ 8LN
ASTM A320✓ B8/B8M✓ L7/L7M
ASTM F593 / F594✓ 304/316
DIN 931 / 933✓ A2/A4Gr 8.8✓ 8.8/10.9
DIN 976 / 975✓ A2/A4✓ Alloy✓ 8.8/10.9
BS 4882✓ 316/316L✓ B7✓ 2205✓ 625
IS 1367✓ A2/A4✓ 8.8/10.9✓ All
NACE MR0175✓ B7M/L7M✓ 2205✓ 625✓ K500✓ C276
API 20E✓ PSL1/2✓ PSL1✓ PSL2
ISO 4014 / 4017✓ A2/A4✓ 8.8/10.9
Documentation We Provide

Every Order Ships Fully Documented

MTC
Mill Test Certificate
Heat & Lot Traceable
COC
Certificate of
Conformance
TPI
Third-Party Inspection
TÜV · BV · Lloyds
PMI
Positive Material ID
XRF Verified
NABL
Accredited Lab Reports
Tensile · Hardness
Our Process

From Specification to Certificate

How we ensure every fastener leaving our facility is fully standard-compliant and documented.

Raw Material Verification

Every incoming heat is verified against the mill certificate using PMI (XRF) testing before entering production. No material enters our shop floor without documented approval.

In-Process Inspection

Dimensional checks at forging, machining, and thread-rolling stages. Go/no-go gauges calibrated to ISO 17025. All results recorded and traceable to the job order.

Final Test Reports

Tensile, hardness, impact (if required), and intergranular corrosion testing performed at NABL-accredited laboratories. Reports attached to every shipment.

Third-Party Inspection

We co-ordinate TÜV, Bureau Veritas, Lloyds, SGS or any client-nominated inspection agency. Witness inspection at our facility or at the nominated test lab, per client requirements.

Standard-Compliant Supply

Specify the Standard.
We’ll Certify It.

Tell us the standard, grade, material, size, and quantity. We respond with pricing, lead time and full documentation list within 24 hours.

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