Industrial Fasteners - Manufactured & Exported Direct from India

GRMB EXPORTERS manufactures Hex Bolts, Nuts, Washers, Eye Bolts and 15+ other fastener types to DIN, ISO and ASTM standards, and exports them directly from our own facility.

ISO 9001:2015 Certified Manufacturer Exporter - not a trading intermediary HS Codes 73181500 / 74153390

Fastener Product Range

Every fastener type we manufacture, each with a dedicated specification page.

Hex Bolts

Hex Bolts

High-strength hex bolts available in multiple grades and finishes.

View Specifications →
Square Head Bolts

Square Head Bolts

Durable square head bolts for specialized mechanical applications.

View Specifications →
Allen CSK Bolts

Allen CSK Bolts

Countersunk Allen bolts for flush mounting applications.

View Specifications →
Allen Cap Bolts

Allen Cap Bolts

Precision-engineered socket head cap screws with cylindrical heads.

View Specifications →
U-Bolts

U-Bolts

U-shaped fasteners for securing pipes and tubes to structural members.

View Specifications →
T-Bolts

T-Bolts

T-shaped bolts designed for specialized fixture and clamping applications.

View Specifications →
Expansion Bolts

Expansion Bolts

Anchoring fasteners that expand when tightened for secure mounting.

View Specifications →
Carriage Bolts

Carriage Bolts

Smooth rounded head bolts with square neck for preventing rotation.

View Specifications →
Gland Eye Bolts

Gland Eye Bolts

Specialized eye bolts with gland design for sealing and anchoring applications.

View Specifications →
Lifting Eye Bolts

Lifting Eye Bolts

Industrial eye bolts designed for heavy lifting and secure anchoring.

View Specifications →
Foundation Bolts

Foundation Bolts

Specialized bolts for securing structures to concrete foundations.

View Specifications →
Half Thread Bolts

Half Thread Bolts

Bolts with threads on approximately half of the shank length.

View Specifications →
Full Thread Bolts

Full Thread Bolts

Bolts with threads running the entire length of the shank.

View Specifications →
Hex Nuts

Hex Nuts

Standard hexagonal nuts for use with threaded bolts and screws.

View Specifications →
Nylon Lock Nuts

Nylon Lock Nuts

Self-locking nuts with nylon inserts to prevent loosening.

View Specifications →
Lock Nuts

Lock Nuts

Specialized nuts designed to resist loosening under vibration.

View Specifications →
Eye Nuts

Eye Nuts

Ring-shaped nuts for lifting and anchoring applications.

View Specifications →
Dome Nuts

Dome Nuts

Decorative nuts with a rounded cap for a finished appearance.

View Specifications →
Washers

Washers

Flat discs used to distribute load and prevent loosening.

View Specifications →

Certifications & Standards We Manufacture To

Full sizing, material and finish details are on each product's own page below.

ISO 9001:2015ASME B18.15ASME B18.16.3ASME B18.2.1ASME B18.2.2ASME B18.3ASME B18.5ASTM A307ASTM A325ASTM F1554DIN 125DIN 1587DIN 186DIN 3570DIN 444DIN 478DIN 529DIN 580DIN 582DIN 603DIN 7991DIN 912DIN 931DIN 933DIN 934DIN 980DIN 985ISO 10642ISO 1234ISO 299ISO 3266ISO 4014ISO 4017ISO 4032ISO 4762ISO 582ISO 7040ISO 7089ISO 7719ISO 8677

Need a size, material or standard not listed here? Ask our team on WhatsApp.

Frequently Asked Questions

GRMB EXPORTERS manufactures fasteners directly - we are a manufacturer exporter for this division, not an intermediary. Our other divisions (Denim, Leather/Vegan Leather, Handicrafts) operate on a merchant-export model, sourcing from verified Indian producers.

Depending on the product, our fasteners are manufactured to DIN, ISO and ASTM specifications. Exact standards per product are listed on each product's page and in the specification table below.

We manufacture in Carbon Steel, Alloy Steel and Stainless Steel (304/316), in sizes ranging from M3 to M42 depending on the product, with Zinc Plated, Hot Dip Galvanized, Black Oxide or Plain finishes.

Yes. We offer custom sizing, materials, finishes and packaging for project-specific and bulk export requirements - share your drawing or specification and our team will confirm feasibility.

Yes, sample orders can be arranged before you confirm a bulk shipment. Contact our export team with the product, standard and quantity you need.

MOQ and lead time vary by product, size, material and finish. Share your requirement via WhatsApp or the contact form and our export team will confirm exact MOQ, lead time and pricing.

Our fasteners are generally classified under HS Codes 73181500 and 74153390. Please confirm the exact tariff sub-heading for your specific product and destination country with your customs broker before filing.

Send us the product name, standard/specification, size, material, finish and quantity via the contact form or WhatsApp, and our export team will respond with pricing and lead time.

Ready to Import Fasteners from a Direct Manufacturer?

Send your specification, standard and quantity - our export team will respond with pricing, lead time and documentation requirements.