Sutton 1 3/4 8UN Intermediate Hand Tap - Premium HSS

Sutton Tools is an Australian-owned manufacturer of precision cutting tools and threading accessories, supplying tradespeople, engineers, and manufacturing operations across Australia and internationally. Their product range spans taps, dies, drills, endmills, holesaws, and related tooling — all engineered to perform consistently under real industrial conditions. AIMS Industrial supplies the Sutton Tools range to Australian businesses as part of our commitment to stocking quality, trusted brands.

Sutton special-thread taps and dies cover 8UN (8 Thread Unified), 12UN, BA (British Association), and BSB (British Standard Brass) standards — niche threads used on specific plant, instrumentation, and heritage equipment that fall outside the common Metric, BSW, UNC, and UNF standards.

Where this product is used

Used wherever specialised thread standards are specified on original-equipment drawings or encountered in heritage, instrumentation, and heavy industrial applications.

• 8UN taps used for large-diameter unified coarse-series threads on heavy equipment studs, flanges, and pressure-vessel closures.
• BA taps used on small electrical, scientific, and optical instrument components to metric-equivalent fine-pitch Whitworth-form threads.
• BSB (British Standard Brass) taps used on heritage brass fittings, lamp holders, and thin-walled components requiring a coarse-form thread.

Key specifications

Selecting the right option

Confirm the exact standard and size before ordering — special threads are not interchangeable with similar-sized common standards. Keep the relevant thread gauges handy to verify the finished thread before assembly.