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15J844 General Purpose Spiral-Point Taps

$6.79

Bulk orders will be discounted, please contact us.

UN fine (UNF) taps have more threads per inch than UN coarse (UNC) taps. Compared to UNC taps, UNF taps perform better in threading applications on thin-walled workpieces and hard materials. Fine threads provide more tensile strength and shear strength than coarse threads. The bright finish on these taps provides a smooth, polished surface.

Product Number: 15J844

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  • Description
Mfr Model 357165
Thread Size 1/4"-28
Tap Material High Speed Steel
Tap Finish Bright (Uncoated)
Thread Length 5/8 in
Overall Length 2-1/2 in
Thread Limit H3
Number of Flutes 2
Tap Length Standard USCTI
Tap Shank Standard USCTI
Primary Material Application All Materials
Thread Direction Right Hand
Coolant Fed Non-Coolant Through
Drill Bit Size #3
Extended Neck Yes
Material Grade Machining M35
Measurement System Fractional Inch
Primary Material Application ISO Code N; P
Shank Dia 1/8 in
Shank Length 1-1/2 in
Square Size 0.1910 in
Standards USCTI Table 302A
Tap Chamfer Plug
Tap Thread Size 1/4"-28
Threads per Inch 28
Manufacturer Part Number 357165
UNSPSC 23153305
Country of Origin USA (subject to change)
Thread Standard UNF
Shank Type Machining Straight
Secondary Material Application Aluminum; Brass; Bronze; Cast Iron; Copper; Steel
Secondary Material Application ISO Code K; N; P
Spiral Direction Neutral
Class of Fit 2B
Thread Pitch 1.00 mm
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