BIS Certification for Countersunk Flat Head Screws Type H or Type Z Cross Recess Grade A (Part 1) Steel Screws of Property Class 4.8 IS 7485 (Part-1)

The ISI Mark Certification is mandatory for Countersunk Flat Head Screws under IS 7485 (Part 2). It is mandatory to ensure that these fasteners comply with the Indian quality and safety standards. Countersunk flat head screws, with cross recess (Type H or Z), are used in various industries. This includes automotive, electronics, and construction. This screw needs to meet the high-quality standard, which ensures reliability and performance in demanding environments. The Indian Standard 7485 (Part 1) establishes the guidelines for Countersunk Flat Head Screws with type H or Z. Let’s delve deeper to know more about the product and its certification.

ISI Mark Certification for Countersunk Flat Head Screws 

An ISI Certificate for Countersunk Flat Head Screws is essential as they are used when a flush or sunk-in finish is required. These screws are designed to be installed into a pre-drilled countersink hole, ensuring a smooth surface. 

The head style, along with the Type H or Z recess, allows for secure driving with a screwdriver. They are often made from materials such as steel, stainless steel, or non-ferrous metals. These screws are versatile and find applications across various industries, including automotive, construction, and electronics.

BIS QCO Update for Countersunk Flat Head Screws Certification

DPIIT, Ministry of Commerce & Industry, Govt. of India, has issued a Quality Control Order stating that it is mandatory for all cross recessed screws to be used in India, whether manufactured in India or imported from foreign countries, shall mandatorily bear the Standard Mark of the Bureau of Indian Standards and the Bureau of Indian Standards mark under a valid ISI Registration..

BIS QCO for Cross Recessed Screws is intended to ensure that all such screws that are manufactured, imported, or sold in India are controlled to stringent quality standards, which will protect safety.

Key Specification of IS 7485 (Part 1)

The Indian Standard IS 7485 (Part 1) covers definitions, characteristics, and requirements for countersunk flat head screws, made from steel property class 4.8. These screws have a Type H or Type Z cross-recess that improves torque transmission and simplifies installation. The following are the salient features of this criterion:

• Threading and Design Specifications: The screws sizes range from M1.6 to M10. The standard contains exact tolerances for shank diameter, recess depth, and thread pitch.
• Material Specification: The screws must be made from steel, with specified mechanical properties such as tensile strength, yield strength, and hardness.  
• Mechanical Property Specification: The screws are classified under Property Class 4.8, which means the mechanical strength is specified.  
• Surface Treatment Specification: The standard also indicates some surface requirements, such as electroplating requirements, which improve corrosion resistance.

ISI Certification Procedure for Countersunk Flat Head Screws

The steps listed below outline how to become certified as a BIS professional:

• Verify relevance: Apply for a BIS license by IS 7485 (Part 1).
• Online Application: Submit an ISI Registration application online.
• Factory inspection: The following will be examined by BIS representatives when they visit your production facility:
  • Production methods and equipment
  • Device testing and quality assurance procedures
  • Facilities for handling and storage
• Testing Sample: Product samples are shipped to a BIS-accredited testing facility. IS 7485 (Part 1) standards test the samples for tensile strength, elongation, and chemical resistance.
• Compliance check: BIS checks the test and inspection reports to ensure compliance with the standard.

You can go through the BIS process to obtain certification for your product for both Indian and foreign manufacturers:

ISI Mark Certification Process for Indian Manufacturers

ISI Mark Certification for Process for Foreign Manufacturers

Documents Required for BIS Certification of IS 7485 (Part 1)

Below, we have mentioned the list of documents required for ISI Mark Certification for Countersunk Flat Head Screws

• Filled Application form
• Manufacturing Process
• Quality Control Plan
• Test Reports From BIS-Approved Laboratories
• Factory Layouts and Equipment Details
• Certificate of Registration of the Business
• Product Specifications and Technical Details
• Declaration of Conformity to Indian Standards

What Role Does ERCS Pvt. Ltd. Play in the ISI Mark Certification Process?

ERCS Private Limited, as the Best BIS Consultant in India, helps ensure your product meets the necessary Indian Standard Specifications. We conduct a pre-visit factory inspection to assess any possible non-conformities, allowing the team and your company to rectify any issues prior. This means a much smoother, less stressful, and quicker audit process.

Throughout the BIS certification process, ERCS provides constant support from the first submission to post-certification maintenance. The team at ERCS Ltd ensures that your product remains compliant with Indian standards and can maintain the ISI Registration for success long into the future.