About Swarna Fasteners - Washers Supplier in India

Swarna Fasteners is an India-based supplier operating with an active catalogue of 5 products, all concentrated in the washers category of industrial fasteners. The company's listings cover the principal washer geometries used in mechanical assemblies: flat washers, split washers (also called spring lock washers), conical washers (Belleville-type), steel washers, and stainless steel washers. As a single-category supplier, Swarna Fasteners focuses its entire product range on load-distribution and anti-loosening components rather than spreading across broader fastener families. The washer category sits within HS code 7318 (articles of iron or steel: screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers and similar articles) for the carbon and alloy steel variants, while stainless steel washers are typically classified under HS code 7318 as well when made from corrosion-resistant steel, or under HS code 7326 for other articles of iron or steel depending on the precise grade and finish. Indian washer manufacturers commonly serve both domestic OEM demand and export markets, supplying into construction, automotive, electrical equipment, and general engineering assembly lines. The supplier's 5 active listings suggest a focused, specification-driven operation rather than a broad-line hardware distributor.

Product Range and Specialties of Swarna Fasteners

Swarna Fasteners' catalogue covers five washer types that together address the main functional requirements in bolted joints. The flat washer is the most widely used geometry, specified by its nominal bolt size (e.g., M6, M8, M10, M12), inner diameter tolerance, outer diameter, and thickness, typically manufactured to DIN 125, ISO 7089, or ASME B18.21.1 standards. Split washers (DIN 127 or ASME B18.21.1) provide spring tension to resist vibration loosening and are usually made from hardened spring steel with a thickness around 1-2 mm for small bolt sizes. Conical washers, also known as Belleville washers, are specified by their outer diameter, inner diameter, free height, and load-deflection characteristics, and are commonly produced from 17-7 PH, 301, or 304 stainless steel for spring applications requiring controlled compression. The steel washer and stainless steel washer listings indicate material options spanning plain carbon steel (often zinc-plated or hot-dip galvanized for corrosion resistance) and austenitic stainless grades such as AISI 304 (1.4301) and AISI 316 (1.4401). Buyers in this category typically request hardness figures in HV or HRC, tensile strength in MPa, and compliance with ISO 898 for metallic fasteners or ISO 3506 for corrosion-resistant stainless fasteners.

Trade and Export Information - Swarna Fasteners

India is one of the largest exporters of industrial fasteners globally, with washer production concentrated in industrial clusters in Ludhiana (Punjab), Jamnagar (Gujarat), and the Mumbai-Pune corridor, where cold-heading, stamping, and heat-treatment capacity support both domestic and export volumes. Indian washer exporters typically ship to the United States, Germany, the United Kingdom, the UAE, Saudi Arabia, and African markets, with shipments commonly packed in cartons on pallets and loaded into 20 ft or 40 ft containers at weights ranging from roughly 18 to 25 metric tons depending on washer size and bulk density. For washers exported from India, buyers in industrial markets typically require compliance with ISO 9001 quality management systems, ISO 14001 for environmental management, and, for stainless variants, material test certificates confirming grade composition. Goods in HS chapter 7318 are generally subject to pre-shipment inspection under the importing country's regime, and shipments to the EU require CE marking where washers are supplied as part of machinery assemblies falling under the Machinery Directive. Common Incoterms used in this segment include FOB Indian port (Mumbai, Mundra, JNPT), CIF, and CFR, with sea freight being the dominant mode for full container loads and air freight reserved for sample shipments or small urgent orders. Packaging norms typically include inner polybag packing, outer carton with batch identification, and palletization for container loads.

Sourcing from Swarna Fasteners - Buyer Guidance

When sourcing washers from an Indian supplier such as Swarna Fasteners, the most important first step is to request a material test certificate (MTC) for stainless variants confirming the AISI grade and chemical composition, and a hardness test report for carbon steel washers specifying values in HV or HRC. Buyers should also ask for dimensional inspection reports against the relevant DIN, ISO, or ASME standard cited in the enquiry, since washer thickness and flatness directly affect load distribution in the joint. It is standard practice to request pre-production samples for fit and function testing, particularly for conical (Belleville) washers where load-deflection curves must match the application. Confirming the surface finish (plain, zinc-plated, hot-dip galvanized, or passivated for stainless) and the relevant corrosion-resistance hours in salt-spray testing (ASTM B117) is advisable for outdoor or marine applications. Before issuing a purchase order, buyers should clarify MOQ per size, lead time in weeks, packaging details, and whether the supplier holds ISO 9001 certification, and should request a copy of any third-party inspection report such as SGS or Bureau Veritas for export consignments.

What types of washers does Swarna Fasteners supply?

The catalogue lists five washer types: stainless steel washer, split washer, steel washer, conical washer, and flat washer, covering the principal geometries used in bolted joint assemblies across general engineering and construction applications.

Which standards are typically relevant for the washers in this catalogue?

Flat washers are commonly produced to DIN 125, ISO 7089, or ASME B18.21.1; split washers to DIN 127 or ASME B18.21.1; and stainless steel fasteners generally reference ISO 3506 for grades A2 (304) and A4 (316). Buyers should confirm the applicable standard at the enquiry stage.

Which HS code applies to the washers in this catalogue?

Washers of iron or steel, including stainless steel washers, are typically classified under HS code 7318 (articles of iron or steel: screws, bolts, nuts, washers and similar articles). The exact subheading depends on the material (carbon steel versus stainless) and finish, and should be confirmed with the supplier's commercial invoice.

Which documents and certifications should a buyer request?

Buyers should request a material test certificate confirming grade composition for stainless washers, a hardness report in HV or HRC for carbon steel variants, dimensional inspection records, and confirmation of ISO 9001 quality management certification. For export shipments, an SGS or Bureau Veritas pre-shipment inspection report is commonly requested.

What material grades are typically available for stainless steel washers?

Austenitic stainless grades AISI 304 (1.4301) and AISI 316 (1.4401) are the most common for washer production, with 316 offering superior corrosion resistance for marine and chemical environments. Conical spring washers may also use 17-7 PH or AISI 301 for higher strength requirements.

What are typical packaging and shipping practices for Indian washer exports?

Washers are typically packed in inner polybags, then in outer cartons labelled with batch and size information, and palletized for 20 ft or 40 ft container loading. Sea freight from Indian ports such as Mumbai, Mundra, or JNPT under FOB, CIF, or CFR Incoterms is the standard mode for full container shipments.

What is the typical MOQ and lead time for washer orders from India?

MOQ for washer production in India is generally set per size and material grade, often starting at a few thousand pieces per item for standard sizes. Production lead time typically ranges from 3 to 6 weeks depending on order volume, surface finish, and customization, and should be confirmed directly with the supplier.

Which industries typically import washers from India?

Indian washer exporters commonly supply the automotive, construction, electrical equipment, general engineering, and infrastructure sectors in markets including the United States, Germany, the UK, the UAE, Saudi Arabia, and several African and Southeast Asian countries.