Repsol Steel LLP is a trusted bolts, nuts and washers supplier, exporting a comprehensive range of bolting and fastening products to industrial buyers, EPC contractors, and procurement teams across Africa, USA, Mexico, Oman, and Europe. Our product range includes hex bolts, stud bolts, hex nuts, nylock nuts, flat washers, and spring washers — manufactured in accordance with ASME B18.2.1, ASME B18.2.2, ASTM A193, ASTM A194, and other international standards. Every export shipment is supplied with full documentation, EN 10204 3.1 certification, and international packaging standards suited to global import requirements.
With over 25 years of combined industry experience and a proven export network, we serve clients across Africa, USA, Mexico, Oman, and Europe — including refineries, petrochemical complexes, chemical plants, power plants, offshore platforms, marine facilities, and desalination plants. Our export operations are structured to meet the documentation, packaging, customs, and compliance requirements of international procurement — including Material Test Certificates (MTC), NACE MR0175/ISO 15156 compliance, PMI testing, Certificate of Origin, and third-party certification where required.
Whether you require A193 B7 stud bolts with A194 2H nuts for a refinery in Europe, B7M bolting for a sour service unit in USA, B8M Class 2 fasteners for an offshore platform in Oman, B16 bolting for a coker in Mexico, or exotic alloy bolting for a reactor in Africa — Repsol Steel LLP exports the right bolts, nuts, and washers solution, on time, with complete export documentation and customs support.
A complete bolts, nuts, and washers export portfolio covering hex bolts, stud bolts, hex nuts, nylock nuts, flat washers, and spring washers — engineered for reliable bolting and leak-proof connections worldwide.
High-strength hex bolts exported for structural and flanged connections. Available in A193 B7, B16, B8, B8M grades per ASME B18.2.1.
Grades: A193 B7, B16, B8, B8M
Compliance: ASME B18.2.1
Size Range: M6 to M100
Stud bolts threaded on both ends exported for flanged connections. Available in A193 B7, B7M, B8, B8M, B16, L7 grades per ASTM A193.
Grades: A193 B7, B7M, B8, B8M, B16, L7
Compliance: ASTM A193
Size Range: M6 to M48
High-strength hex nuts exported for use with hex bolts and stud bolts. Available in A194 2H, 4, 8, 8M grades per ASME B18.2.2.
Grades: A194 2H, 4, 8, 8M
Compliance: ASME B18.2.2
Size Range: M6 to M100
Nylock nuts (nylon insert lock nuts) exported for vibration-resistant fastening in industrial and structural applications.
Grades: SS304, SS316, CS
Compliance: DIN 985, ISO 10511
Size Range: M3 to M56
Flat washers and plain washers exported for load distribution and surface protection under bolt heads and nuts.
Grades: SS304, SS316, CS
Compliance: ASME B18.22.1, DIN 125
Size Range: M3 to M56
Spring washers exported for vibration resistance, plus custom-manufactured bolts, nuts, and washers in non-standard sizes, materials, and configurations per drawings.
Grades: SS304, SS316, CS, Alloy Steel
Compliance: DIN 127, IS 3063, Custom
Size Range: M3 to M56
Bolts, nuts, and washers are exported in different materials and grades to suit specific pressure, temperature, and media conditions. We export bolts, nuts, and washers to Africa, USA, Mexico, Oman, and Europe in the following materials:
All bolts, nuts, and washers we export are accompanied by Material Test Certificates (MTC to EN 10204 3.1) confirming the exact grade, mechanical properties, and heat number — ensuring full traceability and compliance with international project specifications. PMI testing is available on request.
| Parameter | Specification |
|---|---|
| Product Types | Hex Bolts, Stud Bolts, Hex Nuts, Nylock Nuts, Flat Washers, Spring Washers, Threaded Rods, Custom |
| Materials | Carbon Steel (A193 B7, A194 2H), Stainless Steel (SS304, SS316, A193 B8, B8M, A194 8, 8M), Alloy Steel (A193 B16, B7, F11, F22, F91), Duplex (F51, F53, F55), Exotic Alloys (Monel, Inconel, Hastelloy) |
| Size Range | M3 to M100 standard; larger sizes available on request |
| Standards Compliance | ASME B18.2.1, B18.2.2, B18.22.1, ASTM A193, A194, DIN, ISO, JIS, IS |
| Export Documentation | Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, MTC (EN 10204 3.1) |
| Inspection Options | PMI testing, hardness testing, third-party inspection (SGS, BV, TUV, Intertek) available on request |
| Additional Documentation | NACE compliance, H2S service documentation available on request |
Bolts, nuts, and washers are critical for ensuring leak-proof flanged connections, pressure containment, and safe operations in industrial piping systems. Before finalizing bolts, nuts, and washers for export to Africa, USA, Mexico, Oman, or Europe, our technical team recommends evaluating four key factors:
If you are unsure which bolts, nuts, and washers best suit your application, our technical team is available to review your piping drawings, process data, and project specifications — and recommend the most suitable solution for your region.
We have exported bolts, nuts, and washers to buyers across Africa, USA, Mexico, Oman, and Europe — building an export track record that reflects reliability, compliance, and on-time delivery.
Every bolt, nut, and washer export shipment is accompanied by complete export documentation — Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, Material Test Certificates (MTC to EN 10204 3.1), and third-party inspection reports on request.
Our bolts, nuts, and washers comply with ASME B18.2.1, B18.2.2, B18.22.1, ASTM A193, A194, DIN, ISO, JIS, and IS standards — ensuring that products meet the exact specifications of international industrial projects.
Bolts, nuts, and washers are packed with rust-preventive coating and moisture-resistant export-grade packaging designed for long-distance sea, air, and road transport — protecting product integrity from factory to international destination.
We support a range of Incoterms — FOB, CIF, CFR, EXW, DAP — and coordinate with trusted freight partners for sea, air, and multimodal export shipments to major ports across Africa, USA, Mexico, Oman, and Europe based on buyer preference.
Our export support team assists international buyers with product selection, material grade selection, documentation, customs coordination, shipping updates, and post-delivery follow-up — ensuring a smooth experience at every stage of bolt, nut, and washer export.
Repsol Steel LLP exports bolts, nuts, and washers to a wide range of process industries across Africa, USA, Mexico, Oman, and Europe where reliable bolting and leak-proof connections are essential for safety and operational reliability.
A193 B7 stud bolts with A194 2H hex nuts exported for wellhead equipment, pipeline systems, process piping, and high-pressure transfer lines.
SS316 and alloy steel bolts, nuts, and washers exported for reactors, heat exchangers, process piping, and storage systems handling hydrocarbons.
A193 B16 and alloy steel bolts with A194 4/8 nuts exported for high-temperature and high-pressure process piping in crude distillation and hydroprocessing units.
High-strength A193 B16 and alloy steel bolts, nuts, and washers exported for boilers, steam systems, turbine connections, and high-pressure auxiliary piping.
SS304 and SS316 bolts, nuts, and washers exported for aggressive chemical and corrosive media applications in chemical plants and process equipment.
SS316 and duplex bolts, nuts, and washers exported for offshore platforms, subsea systems, shipbuilding, and marine piping where chloride resistance is essential.
Bolts, nuts, and washers exported to fabrication units and EPC contractors for piping spools, skids, modular systems, and industrial assemblies — with quick turnaround times and documentation support.
Repsol Steel LLP is recognized as a reliable bolts, nuts and washers supplier for procurement teams, EPC contractors, and maintenance projects. Our export documentation, packaging, and standard compliance are structured for smooth cross-border supply to buyers across Africa, USA, Mexico, Oman, and Europe — ensuring your bolts, nuts, and washers arrive on time, in specification, and ready for installation.
Africa: Refinery, petrochemical, mining & industrial projects
USA: Gulf Coast, refinery, petrochemical & power generation supply
Mexico: Refinery, petrochemical, chemical & power industry supply
Oman: Refinery, petrochemical, upstream & gas processing projects
Europe: Refinery, petrochemical, chemical & power industry supply
All bolts, nuts, and washers are exported with material certificates, dimensional inspection reports, PMI testing, Certificate of Origin, and third-party certification as required by project specifications.
We supply a comprehensive range of bolts (hex bolts, stud bolts), nuts (hex nuts, nylock nuts), and washers (flat washers, spring washers) — in carbon steel, stainless steel, alloy steel, duplex, and exotic alloys.
We export bolts, nuts, and washers to Africa, USA, Mexico, Oman, and Europe — covering refinery, petrochemical, chemical, power generation, offshore, marine, desalination, and industrial projects.
We provide complete export documentation — Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, and Material Test Certificates (MTC to EN 10204 3.1). PMI testing and third-party inspection reports (SGS, BV, TUV, Intertek) are available on request.
A193 B7 is a chromium-molybdenum steel bolt for high-temperature service up to 450°C, widely used with A194 2H nuts in refinery and petrochemical applications. A193 B16 is a chromium-molybdenum-vanadium steel bolt for higher-temperature service up to 500°C, used in power plants and critical high-temperature applications.
Yes. We offer custom sizes, materials, bolt configurations, nut types, washer types, thread specifications, and coatings based on drawings, piping specifications, and project requirements — with quick turnaround times for export orders.
Send us your bolts, nuts, and washers specifications, material requirements, or drawings. Our export team will respond within 24 hours with a tailored quotation for Africa, USA, Mexico, Oman, or Europe.
Repsol Steel LLP is a leading manufacturer and stockholder of high-quality piping products, serving the Oil, Gas, Petrochemical, and Nuclear industries with reliable engineering solutions.
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