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1578 1/4-28 H3 2FL SP PT PLUG STI TAP
UNB6006897
MFG #: 6006897
$56.30
/ EA
- Class of Fit: 2B/3B/H3
- Material: HSS
- Overall Length: 2-23/32in
- Shank Diameter: 0.318in
- Square Size: 0.238in
- Tap Drill Size: #3
- Thread Length: 1-1/8in
- Thread Standard: UNF
- Type: Spiral Point
- Series: 1578
- Thread Size: 1/4-28
- Number of Flutes: 2
- Surface Treatment: Bright
- Chamfer: Plug
- Hand Direction: Right Hand
- System of Measurement: Imperial
- Application
- Item Features
- Standards
Through Hole Applications
- 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
ANSI Specified|PROP65: This product contains chemicals known to the State of California to cause cancer. For more information: www.P65Warnings.ca.gov|CSA Approved