The Bordo 7/16″ x 20 UNF Bottoming HSS Tap is a professional-grade threading tool engineered to create full-depth internal threads to the Unified National Fine (UNF) standard. Designed for both hand and general machine use, this bottoming tap delivers precise, complete thread engagement — making it ideal for blind hole applications where minimal thread run-out and maximum thread depth are essential.
Manufactured from high speed steel (HSS), this tap features a 7/16″ major diameter with 20 threads per inch (TPI), offering a fine-pitch thread profile that provides increased tensile strength and resistance to stripping compared to coarse threads. The bottoming flute design, with a reduced lead of two threads, ensures thread cutting right to the bottom of the hole and minimal run-out. Suitable for use in materials such as steel, aluminium, brass and plastics, this dependable tap is a key addition to any trade or workshop toolkit.
Bordo tools are recognised across Australia for quality manufacture and industrial reliability. Industrial Shed ensures fast access to these trusted trade-grade taps when you need reliable threading performance on site or in the workshop.
Product Type: Bottoming Tap
Brand: Bordo
Thread Size: 7/16″ x 20 UNF
Material: High Speed Steel (HSS)
Thread Form: UNF (Unified National Fine)
Lead: Bottoming (2 threads lead)
TPI (Threads per Inch): 20
Drill Diameter (mm): 9.90 mm
Overall Length (mm): 82 mm
Part Number: 3034-7/16B
Application: Full-depth threading in metals, plastics & workshop materials
► Key Features
‣ 7/16″ x 20 UNF fine-pitch thread profile for enhanced tensile strength and resistance to stripping
‣ Bottoming flute design with two-thread lead for minimal thread run-out
‣ High Speed Steel construction for durability and wear resistance
‣ Suitable for hand and general machine use
‣ Ideal for threading steel, aluminium, brass and plastics
► Why Tradies and Contractors Buy This
‣ Ensures complete thread depth in blind hole applications
‣ Excellent fine threading performance in a range of materials
‣ Durable HSS build extends tool life under demanding use
‣ Essential for fabrication, maintenance, and precision assembly
‣ Backed by Industrial Shed’s fast dispatch and trade support
► Stock won’t last — get yours now at Industrial Shed!
At Industrial Shed, we know you need your gear fast and without the runaround. Here’s what makes our shipping better:
Local Delivery, Done In-House: If you're on the Mornington Peninsula, we handle delivery ourselves—no middlemen, no delays. Get your tools the same day or next day, straight from our team to your door.
Nationwide Reach, Reliable Partners: Need it shipped across Australia? We work with top couriers to offer standard and express options, so you get your order when you need it.
Track Every Step: You’ll get a tracking number the moment your order ships. No guessing—just a clear view of where your delivery’s at.
Service with a Real Human Touch: Got special delivery needs? Give us a shout. We’re here to make it happen, no fuss.
With Industrial Shed, you're not just another package in the mail. We get your order to you fast, safe, and with the reliability you expect.
For more information, visit Shipping Details: The Essentials.
At Industrial Shed, we keep things simple. If something’s not right or you’re not satisfied, we’ll sort it out—fast and easy.
What Sets Us Apart?
Fast Turnaround: We don’t mess around. When you need to return an item, we process it quickly so you’re not left waiting. Our goal is to get your refund or exchange sorted fast so you can get back to work.
Local Touch: For customers on the Mornington Peninsula, we offer the added benefit of in-store returns for quicker resolution. No shipping hassles—just bring it back to us, and we’ll handle the rest.
No-Nonsense Support: We make returns and refunds straightforward. If there’s a problem, you won’t be stuck in endless back-and-forths. We’re hands-on and get it sorted with minimal hassle.
Clear Policies, No Surprises: We believe in being upfront. Our return and refund policy is clear, so you know exactly what’s covered—whether it’s warranty claims, special orders, or regular returns. You’ll never be left guessing.
Built for Tradies: We understand the demands of the job, so we’re all about making returns and refunds simple, quick, and no fuss—because downtime is the last thing you need.
For more information, visit Returns & Refunds: Straight Talk.
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