Bordo - 7/16" X 18 Bsf Bottoming HSS Tap | 3030-7/16B

Bordo – 7/16" x 18 BSF Bottoming HSS Tap | 3030-7/16B

The Bordo 7/16" x 18 BSF Bottoming HSS Tap is a specialist British Standard Fine (BSF) bottoming hand and machine tap designed for cutting full-depth internal threads all the way to the base of blind holes. Built for dependable performance in workshop, mechanical and fabrication applications, this bottoming tap delivers minimal thread run-out and precise thread engagement — ideal for fine-pitch threading where traditional British thread forms are used. ([turn0search0], [turn0search1])

Manufactured from premium High Speed Steel (HSS), this BSF bottoming tap uses the finer-pitch British Standard Fine thread form — a Whitworth-derived profile with a 55° thread angle — which provides superior tensile stress area and resistance to stripping compared to coarse threads of the same size. Bottoming taps have a lead of approximately two threads and are typically used after a taper or intermediate tap to complete threads in blind holes. Suitable for both hand tapping and general machine use in medium tensile materials, this tap is a trusted choice for engineering, maintenance and fabrication tasks. ([turn0search0], [turn0search3], [turn0search8])

Bordo is recognised for precision engineered tooling built to industrial and trade standards. Industrial Shed ensures fast access to this reliable BSF bottoming HSS tap when accurate thread cutting performance is needed on site or in the workshop. ([turn0search0])

Product Type: Bottoming Tap
Brand: Bordo
Diameter: 7/16"
Thread Form: British Standard Fine (BSF)
Pitch (Threads Per Inch): 18 TPI
Material: High Speed Steel (HSS)
Thread Angle: 55° (Whitworth-derived)
Drill Diameter (Pilot): ~9.8 mm ([turn0search3])
Lead: Bottoming (2 threads) ([turn0search3])
Overall Length: ~85 mm ([turn0search3])
Pack Quantity: 1
Part Number: 3030-7/16B
Application: Bottoming internal BSF threads to full depth in medium tensile materials (hand & machine use)

► Key Features

‣ 7/16" x 18 BSF bottoming tap for full-depth internal threads in blind holes ([turn0search0])
‣ Manufactured from high-quality High Speed Steel for strength and wear resistance ([turn0search0])
‣ Classic British Standard Fine 55° thread form for strong engagement ([turn0search0])
‣ Bottoming lead design minimises thread run-out when completing threads ([turn0search8])
‣ Suitable for both hand tapping and general machine use ([turn0search8])

► Why Tradies and Contractors Buy This

‣ Provides clean, accurate bottom-of-hole threading performance ([turn0search1])
‣ Trusted HSS construction built for workshop and industrial use ([turn0search0])
‣ Ideal for mechanical, fabrication, maintenance and precision tasks where fine threads are required ([turn0search3])
‣ Designed to be paired with taper or intermediate BSF taps in a complete threading sequence ([turn0search8])
‣ Backed by Industrial Shed’s fast dispatch and trade support

► Stock won’t last — get yours now at Industrial Shed!