BIS Certification for Flush Bolts IS 5187: 1972

Flush bolts are small door fittings used mainly in double doors to keep one side fixed. They are fitted on the inactive door and help lock it from the top or bottom. These door bolts are easy to use, strong, and play an important role in maintaining door stability and security.

To make sure these products are safe and are of good quality, the Bureau of Indian Standards gives BIS certification for flush bolts as per IS 5187:1972. This certification ensures that the flush bolts are strong, durable, well-finished, and work properly for long-term use.

What is IS 5187:1972

IS 5187:1972 is the Indian Standard for flush bolts used in doors. This standard is set by the Bureau of Indian Standards to ensure that flush bolts are safe, reliable, and of good quality for regular use.

This standard ensures that the flush bolts are:
Strong and reliable for proper door locking
Durable for long-term use without damage
Smooth in operation for easy locking and unlocking
Well-finished to prevent rust and wear
Properly designed for secure fitting in doors
Consistent in size, quality, and manufacturing standards

Flush Bolts Testing and Inspection Requirements

To ensure proper performance, smooth operation, and good quality of these door bolts, the Bureau of Indian Standards has defined clear testing and inspection requirements under the standard, which are carried out during manufacturing.

What are R and S

R (Required):Test must be done in the manufacturer’s own lab
S (Subcontracting Allowed):Test can be done in a BIS-approved or external lab

Raw Material Tests

Material Quality Check (S) – Ensures materials like brass, aluminum, or steel meet required standards
Incoming Material Inspection (R) – Verifies quality before production starts

Design and Construction Checks

Manufacture and Construction (R) – Ensures proper design and assembly of flush bolts
Type and Size Verification (R) – Confirms correct type (Type 1 / Type 2) and size

Physical and Quality Tests

Dimensions Test (R) – Checks correct size, length, and thickness
Workmanship and Finish (R) – Ensures smooth surface, proper finishing, and no defects

Performance and Durability Tests

Coating Thickness Test (R) – Ensures proper protective layer
Corrosion Resistance Test (R) – Checks resistance against rust
Abrasion Resistance Test (R) – Ensures surface does not wear easily
Resistance to Cracking (R)—Ensures durability under stress
Light Fastness Test (S) – Checks resistance to fading in light
Light Reflection Test (S) – Ensures proper surface appearance

process of bis certification

The BIS certification process for Flush Bolts involves multiple steps, designed to thoroughly evaluate a product's compliance with the required standards. Here is a general overview of the certification process:

Online Registration: Manufacturers register on the BIS Manak Online Portal by submitting company details, factory information, and product specifications. Foreign manufacturers must appoint an Authorized Indian Representative (AIR) in India.
Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories to evaluate electrical safety, insulation resistance, heating efficiency, durability, and overall performance as per requirements.
Application Submission: The application is submitted along with laboratory test reports, technical documents, manufacturing process details, and factory information. Foreign manufacturers must also provide AIR-related documents.
Factory Inspection: BIS officials conduct an on-site inspection of the manufacturing unit to verify production processes, quality control systems, safety measures, and compliance with the standard.
Grant of BIS License: If all requirements are successfully met, BIS issues the certification license under Scheme-I, allowing the manufacturer to produce and sell certified products.
Use of ISI Mark: After certification approval, the manufacturer is permitted to use the ISI mark along with a CM/L number on the product, confirming compliance with the standard.

documents required for bis certification

Basic Details	GST Certificate Email ID & Contact Number Factory & Office Address Rent Agreement / Lease Deed (if applicable)
Legal Documents	Partnership Deed (if partnership firm)
Manufacturing Details	List of machinery Process flow chart Layout Plan of Factory
Raw Material Details	List of Raw Materials Supplier Details Raw Material Invoices Raw Material Test Certificates
Testing & Quality Control	List of Testing Equipment Calibration Certificates QC / Lab In-charge Appointment Letter & Qualification
Production Details	Annual Installed Capacity Last Year Production Value
Product & Packaging Details	Quantity per Package Nature of Packing Nature of Printing / Marking on Product
Management Details	Top Management Details Concerned Person for BIS Communication
Brand & Certification Documents	Trademark / Brand Certificate Consent Letter from BIS Recognized Laboratory
Additional Documents	Weekly Off Details Hygiene Document (if applicable) Relaxation Letter (if applicable) Any Other Relevant Document

Foreign manufacturers must additionally appoint an Authorized Indian Representative (AIR) to coordinate with the Bureau of Indian Standards (BIS) and manage compliance requirements in India.

Marking Requirements & License Validity

Marking Requirements

When a manufacturer obtains the BIS license, the ISI mark for flush bolts must be applied clearly and permanently on the product or its packaging. In addition to the ISI Mark, other important details must also be provided on the product or packaging, as specified in the table below. This ensures the product meets all quality and safety standards.

Requirement	Details
ISI Mark	Indicates that the product is BIS certified and follows to the standard
Standard Number	IS 5187
CML Number	Certification Marks Licence (CML) number issued by BIS
Manufacturer Details	Name of manufacturer or registered trademark
Alloy Information	Grade or designation of aluminium alloy used
Batch / Date	Batch number, heat number, or manufacturing date for traceability

Note:

Marking is typically applied using durable stamping, tagging, or permanent printing to ensure clear identification during handling, storage, and transportation, as per BIS marking requirements.

Validity of BIS licenses for door flush bolts

After obtaining BIS certification for the product, the license is valid for a fixed period and must be maintained by following BIS rules and standards.

Particulars	Details
Initial Validity	Typically 1 to 2 years, depending on BIS approval conditions
Renewal	Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents
Surveillance	Includes periodic factory inspections and market sample testing conducted by BIS
Compliance	Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory
Risk	Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license

Cost of BIS certification for flush bolts

The cost of BIS certification includes charges for application, inspection, license, testing, and marking. These fees are paid to BIS as per Scheme I guidelines.

Cost Breakdown

Indian Manufacturers

No.	Major Charges	Particulars	Amount	Remark
1	BIS Fees	Application Fee	INR 1,000	—
		Audit / Inspection Fee	INR 7,000	—
		License Fee	INR 1,000	—
		Marking Fee	Depends on product	Discount as per MSME
2.	Testing Charges	Sample Testing Fee	As Applicable	Payable to a BIS-approved laboratory.
3.	EVTL India Service Fee	Consultancy & Support	As per actual	Depends on product type and factory location.

Foreign Manufacturers

No.	Major Charges	Particulars	Amount	Remark
1.	BIS Fees	Application Fee	USD 15	Payable via SWIFT to BIS. SAARC countries can pay INR with 18% GST.
		Audit Charges	USD 3,200 – 5,900	Depend on Country
		License Fee	USD 15	—
		Marking Fee	Depends on product	—
2.	Testing Charges	Sample Testing Fee	As Applicable	Payable to a BIS-approved laboratory.
3.	EVTL India Service Fee	Consultancy & Support	As per actual	Based on product and manufacturing location.

cOST AND TIMELINE OF CERTIFICATION

BIS ISI Mark Certification Costing And Timeline

to know the process in detail, please visit:

Under BIS Registration Products ISI and CRS

conclusion

The BIS certification for flush bolts, as per IS 5187:1972, confirms that the product meets essential quality and performance standards for safe use in doors. It also ensures that the flush bolts undergo proper testing for strength, durability, and smooth operation, making them reliable for long-term use.

With the support and guidance of an experienced BIS consultant like EVTL India, manufacturers can complete the certification process smoothly, reduce errors, and get faster approval.