What are API 6A Fasteners?
API 6A Fasteners are Industrial Engineering Works components used with wellhead, Christmas tree, and pressure-control equipment in upstream Oil & Gas operations. They are selected and supplied according to the applicable equipment specifications, service conditions, material requirements, and bolting requirements.
API Specification 6A establishes requirements for wellhead and Christmas tree equipment, including equipment design, manufacturing, performance, testing, and applicable bolting requirements. Properly specified fasteners are essential for maintaining reliable bolted connections in high-pressure Oil & Gas equipment.
API 6A fasteners are commonly used in wellheads, Christmas trees, blowout preventers, gate valves, chokes, pressure-control equipment, drilling equipment, offshore platforms, subsea production systems, and pipeline equipment.
Our API 6A Fastener Range
API 6A Stud Bolts
API 6A Stud Bolts are supplied for wellhead, Christmas tree, valve, and pressure-control equipment requiring reliable high-integrity bolting.
API 6A Heavy Hex Bolts
API 6A Heavy Hex Bolts are available for specified equipment and bolting assemblies where heavy hex configurations are required.
API 6A Heavy Hex Nuts
API 6A Heavy Hex Nuts are supplied for compatible stud bolt and heavy hex bolt assemblies used in critical Oil & Gas equipment.
API 6A Socket Head Cap Screws
API 6A Socket Head Cap Screws are available for applicable equipment and fastening applications where compact high-strength fastening is specified.
Custom API 6A Fasteners
Custom API 6A fasteners can be supplied according to customer drawings, equipment specifications, dimensions, material requirements, thread configurations, testing, and documentation requirements.
Available Materials
1
ASTM A193 Grade B7
ASTM A193 Grade B7 alloy steel fasteners are suitable for specified high-pressure and high-temperature Oil & Gas applications.
2
ASTM A320 L7
ASTM A320 L7 alloy steel fasteners are available for applications requiring specified mechanical properties, including applicable lower-temperature service conditions.
3
ASTM A540
ASTM A540 grades can be supplied for applicable specialty alloy steel bolting requirements where specified material and mechanical properties are required.
4
Alloy Steel Fasteners
Alloy steel fasteners are available for demanding applications requiring specified strength, toughness, and mechanical properties.
5
Carbon Steel Fasteners
Carbon steel fasteners can be supplied for applicable API 6A equipment and Industrial Engineering Works requirements according to project specifications.
6
Stainless Steel Fasteners
Stainless steel fasteners can be supplied where specified by the equipment, application, material requirements, or customer requirements.
API 20E Fasteners for API 6A Equipment
API 20E provides requirements applicable to bolting materials used in critical petroleum and natural gas applications. Where specified for API 6A equipment, API 20E fasteners can be supplied according to the required Bolting Specification Level.
API 20E BSL 1 Fasteners
API 20E BSL 1 fasteners are available for applicable API 6A equipment and bolting assemblies where BSL 1 requirements are specified.
API 20E BSL 2 Fasteners
API 20E BSL 2 fasteners provide applicable enhanced qualification, manufacturing, inspection, testing, and documentation requirements for specified critical applications.
API 20E BSL 3 Fasteners
API 20E BSL 3 fasteners are available for applications requiring the highest applicable Bolting Specification Level under API 20E.
Applications of API 6A Fasteners
Why Choose Industrial Engineering Works?
Technical Specifications
| Specification | Details |
|---|---|
| Standard | API Specification 6A |
| Product Types | Stud Bolts, Bolts, Nuts, Screws |
| Materials | Alloy Steel, Carbon Steel, Stainless Steel |
| Thread Types | UNC, UNF, Metric |
| Sizes | Standard & Custom |
| Testing | Mechanical, Hardness, NDT (where required) |
| Documentation | MTC, Inspection Reports, Traceability |
Industries Served
Oil & Gas Exploration
API 6A fasteners for upstream exploration equipment, wellhead systems, pressure-control equipment, and related critical applications.
Offshore Drilling
Industrial Engineering Works solutions for offshore drilling platforms and associated well-control equipment.
Refineries
Fasteners for applicable refinery equipment and industrial bolted assemblies.
Petrochemical Plants
Bolting products for specified petrochemical equipment and process applications.
LNG Facilities
Fasteners for applicable LNG equipment and associated critical bolted connections.
Pipeline Infrastructure
API fasteners for applicable pipeline equipment, connections, and supporting infrastructure.
Common Questions About IEW
What are API 6A fasteners?
API 6A fasteners are bolting components used with equipment covered by API Specification 6A, particularly wellheads, Christmas trees, valves, pressure-control equipment, and related upstream Oil & Gas systems. The applicable fastener specification depends on the equipment and project requirements.
What is the purpose of API 6A bolting?
API 6A bolting is used to provide reliable fastening for critical wellhead, Christmas tree, valve, and pressure-control equipment. Proper material selection, dimensions, mechanical properties, testing, and documentation help support the integrity of these bolted assemblies.
What is the difference between API 6A and API 20E?
API 6A primarily covers wellhead and Christmas tree equipment and establishes requirements for that equipment. API 20E establishes requirements applicable to bolting materials used in critical petroleum and natural gas applications. API 20E fasteners may therefore be specified for applicable API 6A equipment.
Which materials are available for API 6A fasteners?
Available materials include ASTM A193 Grade B7, ASTM A320 L7, ASTM A540 grades, alloy steel, carbon steel, and stainless steel where supplied and specified.
Do you manufacture custom API 6A fasteners?
Yes. Custom API 6A fasteners can be supplied according to customer drawings, dimensions, material requirements, thread configurations, testing requirements, and project specifications.
Do you supply API 6A fasteners to the USA?
Yes. Industrial Engineering Works supplies API 6A fasteners to customers throughout the USA and supports worldwide export requirements.