STI Tap 1/4 -18 HSS MPN:328-4

High-speed steel STI taps provide good wear resistance in general purpose tapping applications in a range of materials. These taps have a bright finish that provides a smooth, polished surface.

Technical Specifications

• Item Screw Thread Insert STI Tap
• Thread Size 1/4"-18
• Thread Standard NPT
• Tap Material High Speed Steel
• Tap Finish Bright (Uncoated)
• Thread Length 1 1/16 in
• Overall Length 2 1/2 in
• Tap Chamfer Taper
• Thread Limit H3
• Thread Direction Right Hand
• Number of Flutes 4
• 75% Thread Drill Size 7/16 in
• Extended Neck No
• Features Used for General Hand and Machine Tapping Operations
• Measurement System Fractional Inch
• Shank Dia. 11/16 in
• Shank Type - Machining Straight
• Standards ANSI
• Tap Grouping Individual
• Tap Style Pipe
• Tap Thread Size 1/4"-18
• Threads per Inch 18 TPI

Manufacturer Details

• Manufacturer: Helicoil
• Condensed Mfg Number: 3284
• MPN: 328-4

Label Details

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

Classification Details

• GDS Category Name: Screw Thread Insert STI 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