BIS Certification for Countersunk Head Wood Screws – Specification IS 18509

BIS Certification is mandatory for manufacturers of Cross-recessed Countersunk Head Wood Screws under IS 18509. This certificate assures that the product is qualified against the Indian Standard for safety and quality. Manufacturers need to ensure that products are materially capable, dimensionally accurate, and mechanically designed for performance, and consistent.

The Indian standard demonstrates that these screws are approved for strict quality and performance standards for use in a variety of industry. Covering product testing and factory inspections, the certification process involves testing screws to ensure they have the durability, reliability, and safety associated with the Screw. Upon achieving compliance, manufacturers can label their products with the ISI Mark (Standard Mark) to demonstrate compliance with national and international benchmarks for performance.

Overview of Cross-recessed Countersunk Head Wood Screws Certification

Cross-recessed countersunk head wood screws are specifically manufactured for wood and where flush finish is required. A countersunk head allows screws to sink into the material, allowing screws to sink and sit level below the surface creating a smooth, finished appearance after install.

Cross-recessed is about the cross shape indent on screw head, which allows for various cross head screwdriver usage including Philips and Pozidriv. This provides a better grip and ease of use. The cross-recessed head allows the screw to apply optimal torque, while restoring grab-in to ensure the screw sinks flush for a smooth, flat finish. The common uses for these types of screws are typically for woodworking, furniture assembly, and general carpentry.

Quality Control Order for Cross-recessed Countersunk Head Wood Screws

The Commerce and Industry Ministry has, for Cross-recessed Counersunk Head Wood Screws, implemented a Quality Control Order (QCO). The QCO mandates that Cross-recessed Countersunk Head Wood Screws must meet specific Indian Standards and rate the BIS Standard Mark. The QCO became effective from September 2024. The purpose of the QCO is to help ensure good quality and safe fasteners.

Check Update of BIS QCO for Cross-recessed Countersunk Head Wood Screws

The BIS QCO for wood screws are applicable for Wood Screws of all products that are used in woodwork, furniture, and general construction. The BIS IS 18509 document outlines the norms which describe the screws resistance to failures and attestation of adverse conditions for everyday use.

Cross-recessed Countersunk Head Wood Screws – Specification IS 18509 Scope

The scope of IS 18508, Indian Standard for Chipboard Screws specify the characteristics of cross-recessed chipboard screws with thread diameters ranging from 3 mm to 6 mm. It specifies the requirements for dimensions, materials, surface treatments, hardness, and performance of these screws, ensuring they adhere to specific quality standards for fastening applications.

Key Features of IS 18509

IS 18059 is a standard from the Bureau of Indian Standards (BIS) that pertains to cross-recessed countersunk head wood screws have many key features. Some of the key features of IS 18059 include: 

• Scope:  IS 18509 covers the design of a cross-recessed countersunk head wood screw commonly used in many applications. 
• Materials and dimensions: The standard details specifications for materials and permissible head shapes, dimensions and threaded characteristics of the screw. 
• Testing Procedures: The screws undergo extensive testing to whom specific performance requirements are met.  They are tested on:

(A). Tensile Strength: The load bearing capacity of the screw for pulling loads; 
(B). Torque Performance: The ability of the screw to be tightened without stripping its head or damaging the wood; and
(c). Corrosion Resistance: Ensuring the screw can withstand the elements of the environment while maintaining strength over time

• Classification: At the end of testing, the screws are classified into various categories for selection based on the application requirements.
• Benefits: Following IS 18509 ensures there is consistent manufacture of cross-recessed countersunk head wood screws, and will ensure reliable performance as specified in the test program in applications.

Process for Obtaining BIS Certification for Cross-recessed Countersunk Head Wood Screws

Let’s go through the process of obtaining BIS Certification India for Cross-recessed Countersunk Head Wood Screws: 

• Check Applicability: If the product is an IS 18509, you would apply for a BIS licence under IS 18509. 
• Online Application: The BIS licence application must be done through the online portal. 
• BIS Inspection and Testing: BIS inspectors will visit your Production Facility to assess: Recruiting Production schemes and equipment instruments are fitted with your quality assurance plans. 
• Test Samples: BIS will take samples of the product and send them to a BIS-accredited testing laboratory. The samples of IS 18509 will be checked for tensile strength, elongation, and chemical resistance.
• Accordance: BIS will review the inspections and testing reports to determine compliance with the standard. 

The BIS process could be completed to certify your product, both Indian and foreign manufacturers:

• BIS Mark Certification Process for Indian manufacturers
• BIS Mark Certification Process for foreign manufacturers

Fees of ISI Mark for Cross-recessed Countersunk Head Wood Screws

Go through the below given table below and know everything about the fees of BIS Certification services in India: