Argus provides precision API threading for casing, tubing, drill pipe, and critical accessories. We are a licensed API 5CT and 7-1 provider, combining full-length CNC threading with in-house gauging under API Q1 and ISO 9001:2015 quality systems.
Our 100,000 sq. ft. facility with 35+ CNC lathes handles urgent one-off jobs and high-volume programs (Range 1, 2, 3 OCTG). Our certifications and end-to-end capabilities ensure threads hold pressure and maintain compatibility.
sq. ft. facility
CNC lathes
Standardized thread forms defined by the American Petroleum Institute (API) for casing, tubing, and drill-stem components. Standards (5CT, 7-1, 5B) ensure compatibility and reliability. Working with an API Q1-licensed provider ensures fit, pressure integrity, and expected service life.
Common thread types on casing and tubing include:
API Monogram Licensed: API Q1, 5CT (Casing/Tubing), and 7-1 (Rotary Drilling).
Locations with Licenses:
Nisku: API 5CT, 7-1
Edmonton: API 5CT, 6A, 6D, 7-1.
Ensures consistent, audited compliance.
✓ Four full-length lines and large CNC fleet support connections up to 20″ diameter.
✓ Allows quick reaction to rush programs and tight control on large orders
✓ Critical processes under one roof to reduce lead time: Swaging, Zinc/Manganese Phosphating, Stress Relieving, Bead Blasting, and Torque Make-up.
✓ Products arrive fully finished and ready for service.
✓ All connections checked using certified API 5B master gauges.
✓ QA covers: Dimensional verification, gauge calibration, in-process checks, and full traceability.
We routinely thread and gauge:
✓ Integral Joint Tubing (IJ)
✓ Non-Upset Tubing (NU)
✓ External Upset Tubing (EU)
✓ 8-Round Long Casing (LC)
✓ 8-Round Short Casing (SC)
✓ Buttress Casing (BC)
✓ Numbered Connection Rotary (NC)
✓ Regular Rotary (REG)
✓ Full Hole Rotary (FH)
✓ Sucker Rod (SRX)
These API-defined thread forms allow for interchangeability between manufacturers while maintaining the load capacity and sealing performance required in standard wells.
In addition to standard API forms, Argus offers engineered connections such as:
✓ ADP-26 and ADC-28 – two-step parallel-thread, double-seal connections designed to be interchangeable with common CS and PH styles
✓ FJ-AT – a flush joint connection for applications where minimal OD upsets are required
These proprietary designs provide added sealing redundancy and flexibility when matching existing premium or semi-premium strings.
For accessories, tools and custom components, we also machine common general-purpose oilfield threads, including:
✓ ACME
✓ Flush Joint Washpipe
✓ Stub ACME
✓ Unified National
This range makes it easier to manage all your API and non-API threading requirements through a single provider.
Every job begins with a full review of API specs, pipe grade, and end-use. CNC lathes cut threads, followed by optional in-house finishing. Final gauging uses certified API 5B master gauges. Full traceability and documentation are standard.
Review drawings, API documents (5CT, 7-1,
5B), and requirements.
Cut precise API thread forms for optimal finish.
Phosphating or stress relieving for
performance and corrosion resistance.
Check threads using API 5B gauges and log
results for traceability.
Ship protected pieces with required
certifications and reports.
Need API-certified threading that delivers performance and peace of mind? Contact Argus for fast, precise, and fully documented solutions.