Somta Somta Series 581 - HSS Straight Flute Parallel Pipe Bottom (Finishing) Tap NPS 1/8" x 27 TPI

HSS NPS 1/8’ Bottom Tap – Somta Series 581

The SOMTA 5810323 – HSS NPS 1/8’ Bottom Tap is a precision pipe thread tap designed for internal threading of straight (parallel) pipe threads to ANSI NPS standards. Made from tough High-Speed Steel (HSS), this bottoming tap features a short chamfer to allow full thread cutting close to the bottom of blind holes. It’s ideal for producing tight-fitting parallel threads in non-pressurized pipe or conduit applications, such as electrical fittings, low-pressure systems, and mechanical assemblies.

• Bottoming Chamfer – 1-2 threads engaged, suitable for threading to the bottom of blind holes.
• Pipe Thread Type: NPS (National Pipe Straight) – Parallel thread profile for low-pressure and mechanical fits.
• Straight Flute – Ideal for short-chipping materials and general-purpose tapping.
• High-Speed Steel (HSS) – Delivers toughness, edge retention, and wear resistance.
• Right-Hand Threading – Compatible with standard tapping directions and setups.
• Versatile Applications – Use in electrical, conduit, and low-pressure piping or assembly.

• Part No: 5810323
• Thread Type: NPS (National Pipe Straight)
• Nominal Size: 1/8’ NPS
• Tap Style: Bottoming Tap
• Chamfer: Bottom (1-2 threads)
• Flute Type: Straight Flute
• Material: High-Speed Steel (HSS)
• Thread Direction: Right-Hand
• Application: Blind-hole tapping for straight pipe thread assemblies
• Standard: ANSI / Unified Pipe Thread

• Precision Threading – Creates clean, accurate pipe threads with tight parallel fits.
• Bottoming Design – Excellent for threading to near-bottom depth in blind holes.
• Durable Construction – HSS withstands industrial use with minimal wear.
• Trusted in Industry – Ideal for workshops, MRO, and custom fitting work.

The SOMTA 5810323 NPS 1/8’ bottom tap offers professional-grade performance for precision threading of straight pipe connections-ensuring secure and reliable fits in mechanical and conduit assemblies.