What types of fasteners do you manufacture?

We manufacture bolts, nuts, stud bolts, threaded rods, washers, anchor bolts, socket head screws and custom industrial fasteners.

Do you supply fasteners in stainless steel and duplex steel?

Yes, we supply stainless steel, duplex steel, super duplex steel, nickel alloys, copper alloys and other corrosion-resistant materials.

Do you export industrial fasteners worldwide?

Yes, Ragnar Metals & Tubes exports industrial fasteners to USA, UK, Europe, Middle East, Africa and Asia.

Can you manufacture custom fasteners as per drawing?

Yes, we provide custom and non-standard fasteners as per client drawings and project specifications.

Fastener Manufacturer & Exporter

Bolts · Nuts · Stud Bolts · Screws · Washers · Carriage Bolts · Coated Fasteners — All grades, worldwide supply

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Bolts

Bolts (Hex Bolts & Flange Bolts)

We manufacture and export hex bolts, heavy hex bolts, flange bolts, Allen bolts, anchor bolts and eye bolts in stainless steel, duplex, super duplex and high-performance alloy grades. Fully compliant with ASME, DIN and ISO standards.

SS 304 / 304L SS 316 / 316L Duplex 2205 (UNS S32205) Super Duplex 32750 Inconel 625 / 718 Hastelloy C276 Monel 400 Alloy Steel A193 B7

Standards	ASME B18.2.1, DIN 931/933, ISO 4014/4017
Size Range	M6 – M100 / 1/4" – 4" (UNC/UNF)
Types	Hex, Heavy Hex, Flange, Allen, Anchor, Eye
Finish	Plain, Zinc, Hot-Dip Galvanized, PTFE

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Nuts

Nuts (Hex Nuts, Heavy Hex Nuts & Specialty Nuts)

Our range includes hex nuts, heavy hex nuts, acorn/dome nuts, coupling nuts, lock nuts, wing nuts and flange nuts. Available in all corrosion-resistant grades for high-pressure and offshore applications. MTC certified.

SS 304 / 316 / 310 Duplex 2205 Super Duplex 32750 Inconel 625 Hastelloy C276 Monel 400 Brass / Copper

Standards	ASME B18.2.2, DIN 934/6334, ISO 4032
Size Range	M6 – M100 / 1/4" – 4"
Types	Hex, Heavy Hex, Acorn, Coupling, Lock, Wing
Testing	Hardness, Tensile, Impact, MTC 3.1/3.2

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Stud Bolts

Fully threaded and tap-end stud bolts for flanged joint connections in piping, pressure vessels and valves. Manufactured to ASME B16.5 / B16.47 flange bolt circle requirements. Available with 2H heavy hex nuts.

ASTM A193 B7 ASTM A193 B8 (SS 304) ASTM A193 B8M (SS 316) Duplex 2205 Super Duplex 32750 Inconel 625 Hastelloy C276

Standards	ASTM A193 / A194, ASME B18.31.2
Thread	8UN, UNC, Metric coarse/fine
Types	Fully Threaded, Tap End, Double End
Applications	Flanged Joints, Pressure Vessels, Heat Exchangers

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Screws

Screws (Machine Screws, Allen Screws & Set Screws)

Stainless steel and alloy machine screws, allen/socket head cap screws, set screws and self-tapping screws for mechanical, electrical and industrial applications. Available in all drive types and head configurations.

SS 304 / 316 Duplex 2205 Super Duplex 32750 Brass / Copper Aluminium Inconel 625

Standards	ASME B18.6, DIN 84/912/915, ISO 1207
Types	Machine, Socket Head, Set, Self-Tapping, Thumb
Drive Types	Phillips, Slotted, Hex (Allen), Torx, Square
Size Range	M2 – M64 / #2 – 2.5"

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Washers

Washers (Plain, Spring & Lock Washers)

Flat/plain washers, spring washers, lock washers, Nord-Lock washers and belleville disc springs in stainless steel, duplex, copper, brass and special alloy grades. Used extensively in flanged joints, structural and marine applications.

SS 304 / 316 Duplex 2205 Super Duplex 32750 Copper / Brass Beryllium Copper Inconel 625

Standards	ASME B18.22.1, DIN 125/127/433, ISO 7089
Types	Flat, Spring, Lock, Belleville, Nord-Lock
Size Range	M3 – M100 / 1/8" – 4"
Applications	Flanges, Structural, Marine, Subsea

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Carriage Bolts

Carriage Bolts (Round Head Square Neck Bolts)

Carriage bolts feature a smooth round head and a square shoulder that prevents rotation during tightening. Used in wood-to-metal and metal-to-metal connections in construction, marine and automotive applications.

SS 304 / 316 Duplex 2205 Hot Dip Galvanized Brass Copper

Standards	ASME B18.5, DIN 603, ISO 8677
Size Range	M6 – M24 / 1/4" – 1"
Applications	Wood Connections, Marine, Construction, Automotive
Finish	Plain, Zinc Plated, Hot-Dip Galvanized

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Coated Fasteners

Fasteners with specialized surface coatings for enhanced corrosion resistance, temperature resistance and friction control. Coatings include PTFE (Xylan), Zinc, Hot-Dip Galvanizing, Phosphate, Geomet and Dacromet for demanding environments.

PTFE / Xylan Coated Hot-Dip Galvanized Zinc Electroplated Phosphate Coated Geomet / Dacromet Ceramic Coated

Base Material	SS 304/316, Alloy Steel, Duplex, Carbon Steel
Coating Types	PTFE, HDG, Zinc, Phosphate, Geomet, Dacromet
Applications	Offshore, Chemical, High-Temp, Subsea
Certifications	NACE MR0175, ISO 10683, ASTM A153

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