North America · United States
Industrial Fasteners Manufacturer, Wholesaler, Supplier & Exporter for Oil & Gas / Petrochemical in United States
ASTM A193/A320 stud bolts and flange fastener sets for pressure vessels, pipelines, and refinery equipment, supplied with full material traceability. The US construction, automotive, and industrial machinery sectors consume fasteners across every grade and standard, from ASTM structural bolts to metric DIN/ISO hardware used by import-heavy OEM supply chains. We ship container loads into the Port of Los Angeles, Port of Long Beach, Port of Houston, and Port of New York/New Jersey for onward distribution across the US.
United States at a glance
- Region
- North America
- Population
- 340 million
- Local currency
- United States dollar (USD)
- Languages
- English, Spanish
- Time zone
- America/New York (UTC-04:00), 9 h 30 min behind India
- Import taxes & duties
- Customs duty at the border; sales/use tax is state-level, not a federal VAT
- Indicative sea transit from India
- about 28–40 days
Population, capital, currency, and languages from Wikidata (checked 2026-09-23); time zones from the IANA tz database. Duty and tax rates change and transit depends on carrier, routing, and port congestion, so figures marked indicative are confirmed against your product and destination port when we quote. Your customs broker should verify final landed cost.
What Oil & Gas / Petrochemical Buyers in United States Need
- ASTM A193 B7/B8/B8M stud bolts with heat-number traceability
- Flange bolting sets matched to ASME B16.5 flange classes
- NACE MR0175-aware material selection for sour service on request
- Full documentation package for QA/QC sign-off
Common Challenges for Oil & Gas / Petrochemical Buyers in United States
Traceability requirements
Pressure-boundary bolting requires heat-number traceable mill certificates that many suppliers can't produce.
Long-lead alloy grades
Specialty alloy stud bolts often have long lead times from unprepared suppliers.
How We Help
Certified stud bolt sets
Stud bolts, nuts, and washers supplied as matched sets with full mill test certification.
Grade planning
Early engagement on alloy grade requirements to manage lead time for project schedules.
Standards & Grades for Oil & Gas / Petrochemical Fasteners in United States
The specifications oil & gas / petrochemical buyers most often quote. We manufacture to the standard, grade and finish on your drawing or purchase order.
ASTM A193 B7 / B7M / B8 / B8M
Stud bolts for high-temperature and high-pressure flange bolting; B7M is the lower-hardness version for sour service.
ASTM A194 2H / 2HM / 8 / 8M nuts
Heavy hex nuts matched to A193 studs for pressure-vessel and pipeline flanges.
ASME B16.5 / B16.47 flange bolting
Stud length and diameter sets sized to flange class and nominal pipe size.
ASTM A320 L7 / L7M
Low-temperature stud bolts for cryogenic and cold-climate service.
Materials & Coatings
Cr-Mo alloy steel (B7)
Quenched and tempered alloy steel for most refinery and pipeline flange joints.
Stainless steel 304 / 316 (B8 / B8M)
For corrosive process fluids, offshore platforms and chemical plants.
PTFE / Xylan and hot-dip galvanized coatings
Fluoropolymer and zinc coatings extend stud life in offshore and coastal atmospheres.
Recommended Products
Frequently Asked Questions
See the full United States market overview for shipping, ports, and trade documentation details.
Source fasteners for oil & gas / petrochemical in United States
Send your product list, quantities, and destination port for a quote within 1-2 business days.