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Union Butterfield UTD 1010499
Union Butterfield 6006911 1578 Spiral Point STI Tap, #8-32 Thread, 2 Flutes, 2B/3B/H3 Class of Fit, Plug Chamfer, Right Hand Cutting, UNC Thread
Factory Order
Union Butterfield STI Tap, Spiral Point, Series: 1578, Measurement System: Imperial, #8-32 Thread, UNC Thread Standard, 15/16 in Thread Length, 2-3/8 in Overall Length, 2 Flutes, Plug Chamfer, Right Hand Cutting Direction, Class of Fit: 2B/3B/H3, 0.22 in Shank Diameter, #29 Tap Drill, 0.165 in Square, HSS, Bright
Features
- Designed for use in aluminum, magnesium, and other nonferrous materials where taps of this type are most commonly used
- Taps suitable for other materials can be furnished on request
- STI taps are dimensionally oversize and utilize a larger tap drill size so that the thread they produce will accept a helical coil wire screw thread insert of the same nominal size and pitch
- For a particular size and pitch the lower H-Limit number is suggested for class 2B and 3B threads, while the higher H-Limit is suggested for class 2B
- Through hole
Specifications
ApplicationThrough Hole Applications
Chamfer TypePlug
Class of Fit2B/3B/H3
Cutting DirectionRight Hand
Finish/CoatingBright
MaterialHSS
Measurement SystemImperial
Number of Flutes2
Overall Length2-3/8 in
Series1578
Shank Diameter0.22 in
Square Size0.165 in
Tap Drill Size#29
Thread Length15/16 in
Thread Size#8-32
Thread StandardUNC
TypeSpiral Point
Catalog
