Spiral Point Tap 1/4 -28 HSS-E MPN:2830401

These taps have a unified thread standard. 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. UNF taps have more threads per inch than 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 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 Point Tap
• Thread Size 1/4"-28
• Thread Standard UNF
• Tap Material HSS-E
• Tap Finish Black Oxide
• Thread Length 9/16 in
• Overall Length 2 1/2 in
• 75% Thread Drill Size 5.45 mm
• Thread Limit H3
• Class of Fit 6H
• Thread Direction Right Hand
• Number of Flutes 3
• Primary Material Application Steel
• 55% Thread Drill Size 5.70 mm
• 65% Thread Drill Size 7/32 in
• Coolant Fed Non-Coolant Through
• Drill Bit Size 0.2129 in, 0.2152 in, 0.2175 in, 0.2198 in, 0.2222 in
• Extended Neck Yes
• Measurement System Fractional Inch
• Primary Material Application ISO Code P
• Secondary Material Application Cast Iron, Hardened Steel, Stainless Steel, Steel
• Secondary Material Application ISO Code H, K, M, P
• Series 280
• Shank Dia. 1/8 in
• Shank Length 1 1/2 in
• Shank Type - Machining Straight
• Spiral Direction Neutral
• Square Size 0.1900 in
• Standards ANSI
• Tap Chamfer Plug
• Tap Grouping Individual
• Tap Thread Size 1/4"-28
• Threads per Inch 28
• Thread Limit / Class of Fit H3 / 6H

Manufacturer Details

• Manufacturer: Osg
• Condensed Mfg Number: 2830401
• MPN: 2830401

Label Details

• Hazardous Material: N
• Green Material Flag: N
• Country of Origin: MX
• CA Prop 65 Wht Label: Y
• CA Prop 65 Warning Msg Scenario: 7

Classification Details

• Harmonization Code: 8207406000
• GDS Category Name: Spiral Point 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