API 20E Tap End Studs for Critical Oil & Gas Applications
Industrial Engineering Works supplies API 20E Tap End Studs for critical Oil & Gas applications where high-pressure bolted joints, material qualification, traceability and quality documentation are essential.
API 20E Tap End Studs are used in applications including wellheads, valves, pressure-control equipment and subsea equipment, where reliable and specification-based bolting is required.
Products are manufactured in accordance with applicable API Spec 20E requirements and customer specifications. We support USA supply requirements with worldwide delivery.
What are API 20E Tap End Studs?
API 20E Tap End Studs are threaded fastening components used in Industrial Engineering Works applications where the applicable requirements of API Spec 20E apply.
API 20E establishes requirements related to the qualification, production, manufacturing controls, testing and documentation of bolting materials used in critical applications.
Tap End Studs have a specific threaded configuration that allows one end to engage with a tapped hole while the other end is used with a compatible nut or bolting assembly. Their configuration makes them different from fully threaded stud bolts used in applications where threading extends along the required length.
API 20E Tap End Studs are selected according to the applicable material grade, dimensions, thread configuration, service requirements and Bolting Specification Level (BSL).
Features of API 20E Tap End Studs
Manufactured to API Spec 20E
Supplied according to applicable API Spec 20E requirements and customer specifications.
Precision Machined Threads
Precision-machined threads for proper engagement and reliable bolted connections.
High Tensile Strength
Suitable material grades can provide the required tensile and mechanical properties for demanding applications.
Complete Material Traceability
Material and product identification supports traceability requirements for critical applications.
Heat Treated Materials
Applicable material grades can be heat treated according to the required specification.
Excellent Fatigue Resistance
Material selection, heat treatment and manufacturing controls can support reliable performance under demanding service conditions.
Corrosion Resistant Coatings Available
Plain and applicable corrosion-resistant finishes can be supplied according to project requirements.
Tight Dimensional Tolerances
Controlled dimensions and thread characteristics for specified customer and application requirements.
Third-Party Inspection Available
Third-party inspection can be arranged according to customer and project requirements.
Mill Test Certificates (MTC)
Applicable material and quality documentation can be provided according to product and customer requirements.
Bolting Specification Levels (BSL)
BSL-1
BSL-1 represents the applicable baseline qualification and manufacturing requirements for API 20E bolting materials.
BSL-2
BSL-2 includes additional qualification and manufacturing controls compared with BSL-1, together with applicable inspection, testing and documentation requirements.
BSL-3
BSL-3 represents a higher level of qualification and quality requirements where enhanced manufacturing controls, inspection and documentation are specified.
Available Material Grades
ASTM A193 B7 Tap End Studs
ASTM A193 B7 alloy steel Tap End Studs for demanding high-temperature and high-pressure industrial applications.
ASTM A193 B7M Tap End Studs
ASTM A193 B7M Tap End Studs for applications requiring the specified material, hardness and mechanical requirements of the grade.
ASTM A320 L7 Tap End Studs
ASTM A320 L7 Tap End Studs for applications requiring suitable mechanical performance at lower temperatures.
ASTM A320 L43 Tap End Studs
ASTM A320 L43 alloy steel Tap End Studs for demanding industrial applications requiring the specified material and mechanical properties.
ASTM A540 Grade B24 Tap End Studs
ASTM A540 Grade B24 Tap End Studs for specialty alloy steel bolting applications where specific material and performance requirements apply.
Duplex & Super Duplex Tap End Studs
Duplex and super duplex Tap End Studs for demanding applications requiring suitable mechanical strength and enhanced corrosion resistance.
Duplex & Super Duplex Heavy Hex Nuts
Duplex and super duplex heavy hex nuts for demanding applications requiring suitable mechanical strength and enhanced corrosion resistance.
Nickel Alloy Tap End Studs
Nickel alloy Tap End Studs, including Inconel, Monel and Hastelloy options, for demanding environments requiring specific temperature and corrosion resistance characteristics.
Applications of API 20E Tap End Studs
Wellheads
Tap End Studs for specified Industrial Engineering Works assemblies used in wellhead equipment.
Christmas Trees
For applicable bolted connections within Christmas tree and pressure-control equipment.
Blowout Preventers (BOP)
Tap End Studs for specified BOP equipment and critical mechanical assemblies.
Pressure Control Equipment
For pressure-control equipment requiring specified bolting materials and mechanical performance.
Subsea Equipment
For applicable subsea equipment and critical offshore fastening applications.
Pipeline Flanges
Heavy hex nuts for specified pipeline flange connections and associated bolting assemblies.
Valves
For industrial valve assemblies requiring compatible heavy hex nuts and stud bolts.
Pressure Vessels
For specified pressure vessel and pressure-containing equipment applications.
Heat Exchangers
Tap End Studs for applicable heat exchanger equipment and critical bolted connections.
Drilling Equipment
Heavy hex nuts for applicable drilling equipment and critical mechanical connections.
Offshore Platforms
For demanding offshore equipment and bolted assemblies.
Petrochemical Plants
For process equipment, piping systems, valves and other petrochemical applications.
LNG Facilities
For applicable LNG equipment, piping and critical bolted connections.
Why Choose Industrial Engineering Works?
Testing & Quality Assurance
Positive Material Identification (PMI)
Material identification testing to verify the specified material composition.
Hardness Testing
Hardness verification according to the applicable material and product requirements.
Tensile Verification
Tensile testing to verify applicable mechanical properties.
Charpy Impact Testing
Charpy impact testing where required by the applicable specification or customer requirement.
Ultrasonic Testing (UT)
Ultrasonic testing where specified for the applicable product and inspection requirements.
Magnetic Particle Inspection (MPI)
Magnetic particle inspection according to applicable inspection requirements.
Liquid Penetrant Testing (LPT)
Liquid penetrant testing where specified for the applicable product and customer requirements.
Dimensional Inspection
Verification of critical nut dimensions and product geometry.
Thread Gauge Inspection
Inspection of thread dimensions and compatibility using applicable thread gauges.
Heat Treatment Verification
Verification of applicable heat treatment requirements for specified material grades.
Material Traceability
Maintaining material and product identification throughout the applicable supply process.
Third-Party Inspection
Third-party inspection can be arranged according to customer and project requirements.
EN 10204 3.1 / 3.2 Certification
EN 10204 3.1 / 3.2 certification can be provided where specified by the customer or project requirements.
Available Sizes & Specifications
| Specification | Details |
|---|---|
| Diameter | ½" to 4" (Custom Sizes Available) |
| Length | As per Customer Drawing & Requirement |
| Thread Type | UNC, UNF, 8UN |
| Material | ASTM A193, ASTM A320, ASTM A540 & Special Alloys |
| Finish | Plain, PTFE, Xylan, Zinc, Hot Dip Galvanized |
| Standard | API Spec 20E |
Why Customers Across the USA Choose Our API 20E Tap End Studs
Frequently Asked Questions
What are API 20E Tap End Studs?
API 20E Tap End Studs are threaded fastening components used in Industrial Engineering Works applications where applicable API 20E requirements apply. They are selected according to material, dimensions, thread configuration, mechanical requirements and the applicable BSL level.
What is API Spec 20E?
API Spec 20E establishes requirements for bolting materials used in critical applications, including requirements related to qualification, production, manufacturing controls, testing and documentation.
What is the difference between Tap End Studs and Stud Bolts?
Tap End Studs have a specific threaded configuration designed for engagement with a tapped hole at one end, while stud bolts can have threaded ends or be fully threaded depending on their configuration and application.
What are BSL-1, BSL-2 and BSL-3?
BSL-1, BSL-2 and BSL-3 are Bolting Specification Levels under API 20E. They represent different levels of qualification, manufacturing controls, inspection, testing and documentation requirements.
Which materials are available for API 20E Tap End Studs?
Available material options include ASTM A193 B7, ASTM A193 B7M, ASTM A320 L7, ASTM A320 L43, ASTM A540 Grade B24, duplex, super duplex and nickel alloy materials including Inconel, Monel and Hastelloy, according to applicable requirements.
Where are API 20E Tap End Studs used?
They are used in critical applications including wellheads, Christmas trees, BOPs, pressure-control equipment, subsea equipment, pipeline flanges, valves, pressure vessels, heat exchangers, drilling equipment, offshore platforms, LNG and petrochemical plants.
Can you manufacture custom-sized API 20E Tap End Studs?
Yes. Custom-sized API 20E Tap End Studs can be supplied according to required diameter, length, thread configuration, material and customer drawing or specification.
Do you provide inspection reports and material certificates?
Yes. Applicable inspection reports, material certificates and quality documentation can be provided according to product, project and customer requirements.
Do you supply API 20E Tap End Studs throughout the USA?
Yes. API 20E Tap End Studs can be supplied throughout the USA, with worldwide shipping capabilities for international requirements.