• Metric
• Inch

Product		Size	Property Class	Standard
Socket Head Cap Screw		M3 to M30	A2 - 70/80, A4 - 70/80	DIN 912 / ISO 4762
Hex Head Screw (Full Thread)		M3 to M30	A2 - 70/80, A4 - 70/80	DIN 933 / ISO 4017
Hex Head Bolt (Partial Thread)		M4 to M30	A2 - 70/80, A4 - 70/80	DIN 931 / ISO 4014
Hex Nut		M3 to M30	A2 - 70/80, A4 - 70/80	DIN 934 / ISO 4032
Plain Washer		M3 to M64	A2, A4	DIN 125 A
Flat - Section Spring Washer		M3 to M36	A2, A4	DIN 127 B
Square - Section Spring Washer		M3 to M36	A2, A4	DIN 7980
Threaded Rod		M3 to M36	A2 - 70/80, A4 - 70/80	DIN 975

Product		Size	Grade	Standard
Socket Head Cap Screw		3/16 to 1	F837B & F837E	ASME B18.3 / F837
Hex Head Bolt / Screw		1/4 to 1	F593C, F593D & F593G, F593H	ASME B18.2.1 / ASTM F593
304, 316 Hex Nut		1/4 to 1 1/2	F594C, F594D & F594G, F594H	ASME B18.2.2 / F594
Plain Washer		1/4 to 1	304, 316	ANSI B18.21.1

Pratham Fasteners is a trusted Unbrako Dealer and Unbrako Distributor supplying high-quality Stainless Steel Fasteners for industrial, engineering, construction, automotive, and manufacturing applications. Our range of Unbrako Stainless Steel Fasteners is suitable for applications requiring corrosion resistance, durability, strength, and reliable fastening performance. As an authorized Caparo Dealer and Caparo Distributor, we also provide genuine branded fastening solutions for demanding industrial requirements.

Pratham Fasteners is also an authorized Caparo Dealer and Caparo Distributor, making us a reliable source for branded industrial fasteners in India. Whether you require Stainless Steel Fasteners, Unbrako Stainless Steel Fasteners, or other specialized fastening products, we support OEMs, manufacturers, contractors, engineering companies, and industrial buyers with genuine products, consistent quality, and dependable supply.