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- Mandatory Indian Standard: The High Strength Structural Nuts IS 6623:2004 standard is a mandatory requirement for high strength structural nuts used in steel structures.
- Material & Mechanical Properties: It deals with the definition of steel grades, heat treatment, proof loading, hardness, and tensile properties.
- Dimensional Accuracy: Specifies dimensions, tolerances, thread form, and finish for compatibility with structural bolts and washers.
- Testing & Quality Control: A requirement for testing at labs recognized by BIS, along with in-process quality control.
- ISI Mark Licensing: Only those manufacturers who are licensed by the Bureau of Indian Standards are authorized to use the ISI mark. It ensures that their products are accepted by the market.
Introduction
BIS Certification for High Strength Structural Nuts as per IS 6623:2004 ensures that nuts used in structural steel applications meet the prescribed Indian standards concerning quality, strength, and performance. Issued by the Bureau of Indian Standards, the certification in essence assures that the requirements regarding material composition, mechanical properties, dimensional accuracy, and testing are met. High strength structural nuts under IS 6623:2004 find wide applications in bridges, buildings, and heavy engineering structures where assured load-carrying capacity and safety are of prime importance.
What is IS 6623:2004?
It is an Indian Standard specification for the requirements of High-Strength Structural Nuts. This Indian Standard specification deals with the requirements for the material quality, mechanical requirements, sizes, threads, and finish of High-Strength Structural Nuts. High-Strength Structural Nuts are required for structural steel. IS 6623:2004 also specifies the testing procedure, inspection, and criteria for the establishment of the relevant quality control for the structural nuts in the context of compatibility among the structural nuts, High-Strength Structural Bolts, and structural washers for buildings, bridges, towers, heavy engineering, and others, based on the basic safety requirements.
Key Points:
- Indian Standard Specification IS 6623:200 This is the Indian Standard specification for high strength structural nuts.
- Application Area: It is applicable to nuts intended primarily for structural steelwork in construction, bridges, towers, or other heavy structures
- Material Requirements: The standard covers suitable steel grades with appropriate heat treatment to achieve high strength and high load-carrying ability.
- Dimensional and Mechanical Requirements: It defines the dimensions, threads, tolerances, proof load, and hardness in pursuit of reliable performance.
- Testing & Compliance: IS 6623:2004 requires testing and inspection, along with the quality control of such nuts for safety, durability, and compatibility with structural bolts.
Why is BIS Certification Mandatory
BIS Certification is an essential process to ensure the products being purchased in the Indian market will be in compliance with the established Indian Standards in respect to the quality, safety, and performance. BIS Certification is obligatory in the Bureau of Indian Standards, allowing consumers in India to prevent the use and sale of sub-standard products.
Key Reasons:
- Ensures Product Safety: The products are ensured to have all the necessary requirements for safety; this reduces safety hazards. It is certified by BIS.
- Quality Assurance: It ensures homogeneity in the quality of the products, the same specifications, tests, and inspections at the factory
- Legal Conformity Certification by BIS is necessary for notified products to meet the requirement of legality, rules, and regulations in India.
- Consumer Confidence:The ISI mark infuses confidence in the consumer about the product conforming to the Indian Standards.
- Market Access & Acceptance: The certification of a product aids in facilitating the legal manufacturing, importation, and sale of that product within India, thus increasing the product’s acceptability within the market.
Importance and Benefits of BIS Certification
| Importance | Benefits |
| Regulatory Requirement: BIS Certification is an essential requirement for notified products to satisfy the laws of India. | Increased Customer Trust: The ISI mark is an assurance of safety and quality to the customer. |
| Standard Compliance: It guarantees that the product meets the Indian Standards in regard to its quality, safety, and performance. | Legal Market Access: Facilitates legal production, importation, and marketing of goods in India. |
| Testing & Inspection: It is obligatory that products be tested in recognized laboratories, and factories will be inspected | Enhances Credibility among the Public: The market acceptance and reputation of the certified product are enhanced. |
| Quality Control System: The manufacturers have to adhere to a uniform quality assurance production control system. | Reduced Risk & Liability: Compliance reduces risks of product failure, product recalls, and associated legal costs. |
| Authority Oversight: Certification is accorded by the Bureau of Indian Standards. | Competitive Advantage: The certified products from BIS have a competitive advantage over non-certified products. |
Step-by-Step Process of BIS Certification
Step1:Documentation
- Collect required technical documents
- Prepare product specifications
- Gather company registration details
- Ensure documents follow BIS format
Step2:Product Testing
- Send samples to a BIS-approved lab
- Conduct safety and quality tests
- Receive test reports
- Confirm compliance with BIS standards
Step3:Application Submission
- Fill out the BIS application form
- Upload all required documents
- Attach valid test reports
- Pay the necessary BIS fees
Step4:Scrutiny and Inspection
- BIS reviews submitted documents
- Authority verifies test results
- Factory/product inspection may occur
- Clarifications requested if needed
Step5:Grant of License
- BIS approves the application
- License number is issued
- Product can carry BIS mark
- Renewal required before expiry
Documents Required for BIS Certification
| Category | Documents Required |
| Business Documents | Business license/registration, ISO certificate, organizational details |
| Manufacturer Details | Factory layout, process flow chart, machinery list, production details |
| Product Documents | Product specifications, component list, user manual, model details |
| Testing Documents | Test report from BIS-recognized lab, sample details, test request form |
| Legal & Compliance | Authorization letter, brand ownership proof, trademark certificate (if any) |
| Import/Foreign Manufacturer (If applicable) | AIR (Authorized Indian Representative) details, contract agreement, overseas manufacturer documents |
Timelines, Costs, Validity & Renewal
- Timelines: Usually from 20 to 30 days, with only 7-15 days for the testing.
- Costs: The cost of the government and the test varies depending on the product. There can be some additional charges though.
- Validity: The validity period is 2 years in most situations.
- Renewal: The renewal is done before the expiration; there should be updated documents/tests; the renewal
Why Choose Diligence Certifications
Diligence Certifications is a reliable compliance consulting and certification services provider offering one-stop support for BIS, CDSCO, or other approval requirements in the Indian market. Through in-depth knowledge in the industry, a client-centric strategy, and a transparent processing mechanism, Diligence Certifications assists companies to attain BIS approval with ease, overcoming all difficulties in the approval process.
Conclusion
It is an important factor that helps in improving the overall quality and safety of products within the Indian market. Adherence to the stated Indian Standards helps companies and importers in India obtain the trust and confidence of their customers while preventing them from facing legal prosecution because of non-standardization or not conforming to Indian Standards and directives. With this certification, many companies find it easier to ensure successful business development.
Frequently Asked Questions (FAQs)
What is IS 6623:2004?
IS 6623:2004 is used for high-strength structural nuts for applications involving steel structures.
Issuer of IS 6623
The Standard has been published by the Bureau of Indian Standards (BIS).
Is certification by the Bureau of Indian Standards (BIS) mandatory
Yes, BIS Certification is mandatory for the production, import, and sale of such nuts in India.
What materials are covered in IS 6623:2004?
It is applicable for certain grades of steel, for specified conditions of heat treatment.
What tests are required for BIS Certification?
Proof loads, Hardness Tests, Dimensional Tests, and Mechanical Tests as done in BIS accredited labs
Where are IS 6623:2004 nuts applied?
These are employed in bridges, buildings, towers, industrial setups, and heavy engineering structures.
Who can apply for BIS certification?
Indian Manufacturer or the foreign manufacturer through the Authorized Indian Representative.
BIS certification is valid for how long?
The certification remains valid for 2 years; however, renewals are possible.
Can IS 6623:2004 nuts be sold without BIS certification?
“No, selling or importing without valid certification from the BIS is not allowed.”
Why is the ISI mark important?
The ISI mark is testimony to the fact that it meets the standards of IS 6623:2004.
