Circlips

Circlips and similar iron or steel fastening articles

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 1363 · SIMS OVERLAY

HSN 7318 29 10 (Circlips) is covered by a Bureau of Indian Standards Quality Control Order under the Bolts, Nuts and Fasteners (Quality Control) Order, 2024. Conformity to the applicable Indian Standards under the ISI Mark Scheme is mandatory with effect from 12 July 2024, per S.O. 2771(E). Steel Import Monitoring System registration administered by the Directorate General of Foreign Trade applies as a separate customs-clearance overlay.

What this is

HSN code

7318 29 10

Chapter

73 · Articles of iron or steel

BIS QCO

Applicable · ISI Mark Scheme · CM/L required

Indian Standard

IS 1363 · effective 12-07-2024

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

SIMSSIMS·Steel Import Monitoring System

Procedural directions for customs clearance are issued by: Directorate General of Foreign Trade.

Compliance steps

1
Verify the foreign manufacturer's BIS CM/L licence against the applicable IS standard for the specific fastener type being imported. Confirm the licensed product scope, size range, and manufacturing facility address on the BIS online register before placing the purchase order.
Bolts, Nuts and Fasteners (Quality Control) Order, 2024 · S.O. 2771(E) dated 12-07-2024 · ISI Mark Scheme under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018
2
Ensure each article bears the ISI mark and the supplier's CM/L number traceable to the licensed facility. Marking must appear on the product itself; packaging-only marking does not satisfy the statutory requirement.
BIS (Conformity Assessment) Regulations, 2018 · Scheme-I marking format · Bolts, Nuts and Fasteners (Quality Control) Order, 2024
3
Register the consignment on the Steel Import Monitoring System portal and obtain an automatic registration number by paying the fee of ₹500. Apply no earlier than 60 days before the expected date of arrival; the registration number remains valid for 75 days.
DGFT Notification 33/2015-20 dated 28-09-2020 · DGFT Notification 28/2023 dated 28-08-2023
4
Quote both the supplier's BIS CM/L number and the SIMS registration number on the bill of entry. Customs verifies both in real time; either being absent, expired, or scope-mismatched triggers consignment detention.
ITC (HS) policy condition 2 of Chapter 73 · BIS Act, 2016 · Customs Act, 1962
5
If the consignment is a re-import of steel for packaging purposes only, or involves SEZ-to-DTA movement, document the SIMS exemption basis. The BIS QCO obligation under S.O. 2771(E) is not waived by either SIMS carve-out.
DGFT policy circular 38/2015-20 dated 19-01-2022

A word of counsel

The most common error on this tariff line is presenting a CM/L licence that covers a different fastener type within the heading — for instance, a licence scoped to hexagon head bolts under IS 1363 (Part 1):2019 (size range M5 to M64) when the consignment contains circlips or other non-bolt fastening articles governed by a separate IS. Each IS standard and part under S.O. 2771(E) is product-specific; customs officers are directed to verify scope match against the bill of entry item description, and a scope mismatch on even one line item can result in detention of the entire consignment.

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Frequently asked

Does HSN 7318 29 10 require BIS certification?

Yes. Circlips under HSN 7318 29 10 are subject to the Bolts, Nuts and Fasteners (Quality Control) Order, 2024 under the ISI Mark Scheme; import is permitted only from manufacturers holding a current BIS CM/L licence covering the specific article type, with effect from 12 July 2024.

Is Steel Import Monitoring System registration required separately from BIS QCO compliance?

Yes. SIMS registration is administered by the Directorate General of Foreign Trade and is independent of the BIS QCO obligation. The fee is ₹500, validity is 75 days, and application may be made no earlier than 60 days before the expected date of arrival.

Which Indian Standards apply under S.O. 2771(E) for fasteners under this heading?

Multiple standards apply depending on fastener type: IS 1363 (Parts 1, 2 and 3) for grade-C hexagon fasteners, IS 1364 (Parts 1 and 2) for grades A and B, IS 3757:1985 for high-strength structural bolts, IS 6623:2004 for high-strength structural nuts, IS 15833:2009 for stainless steel tower bolts, and further standards for specific types. Each CM/L licence must match the exact article being imported.

Does a single CM/L licence cover all fastener types and sizes from one manufacturer?

No. A CM/L licence is scope-specific by IS standard, part, size range, and manufacturing facility; fastener types or sizes outside the licensed scope are not covered and trigger customs detention on a mismatch with the BIS register.

Last verified against gazette notifications: 2026-05-18. Source: BIS / SIMS / DGFT / Indian Customs CUSDATA.