Spiral Flute Tap 1/4 -20 HSS-E MPN:2928001

UN coarse (UNC) taps have fewer threads per inch than UN fine (UNF) taps. Compared to UNF taps, UNC taps perform better in threading applications on brittle materials and are less likely to cross thread. Coarse threads can also withstand more physical abuse than fine threads. The black-oxide finish on these taps retains lubricants to improve the taps' wear resistance and chip flow. Black-oxide taps should only be used on ferrous metals.

Technical Specifications

• Item Spiral Flute Tap
• Thread Size 1/4"-20
• Thread Standard UNC
• Tap Material High Speed Steel
• Tap Finish Black Oxide
• Thread Length 3/8 in
• Overall Length 2 1/2 in
• 75% Thread Drill Size #7
• Thread Limit H2
• Thread Direction Right Hand
• Number of Flutes 3
• Tap Shank Standard ANSI
• Primary Material Application Steel
• 55% Thread Drill Size #3
• 65% Thread Drill Size #5
• Coolant Fed Non-Coolant Through
• Drill Bit Size 0.1980 in, 0.2013 in, 0.2045 in, 0.2078 in, 0.2110 in
• Extended Neck Yes
• Features Bright, HSSE material, Slow spiral, Steam Oxide surface treatment
• Helix Angle 45 Degrees
• Material Grade - Machining 290
• Measurement System Fractional Inch
• Primary Material Application ISO Code P
• Secondary Material Application Cast Iron, Hardened Steel, Stainless Steel
• Secondary Material Application ISO Code H, K, M, P
• Shank Length 1 1/2 in
• Shank Type - Machining Straight
• Square Size 0.1900 in
• Tap Chamfer Modified Bottom
• Thread Limit / Class of Fit H2
• Threads per Inch 20
• Series 290
• Shank Dia. 1/4 in
• Standards ANSI
• Tap Grouping Individual
• Tap Style Spiral Flute
• Tap Thread Size 1/4"-20

Manufacturer Details

• Manufacturer: Osg
• Condensed Mfg Number: 2928001
• MPN: 2928001

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: BR
• CA Prop 65 Wht Label: N

Classification Details

• Harmonization Code: 8207400000
• GDS Category Name: Spiral Flute Taps
• GDS Family Name: Threading
• GDS Segment Name: Machining
• UNSPSC: 23153305
• UNSPSC Class ID: 33
• UNSPSC Commodity Name: Cutting tools
• UNSPSC Commodity ID: 05
• UNSPSC Commodity Name: Taps or dies
• UNSPSC Family ID: 15
• UNSPSC Family Name: Industrial process machinery and equipment and supplies
• UNSPSC Segment ID: 23
• UNSPSC Segment Name: Industrial Manufacturing and Processing Machinery and Accessories

Shipping Details

• Not For Sale In: HI AK PR