HSS 5/16-18 UNC Spiral Flute Machine Tap 8mm for Blind Hole Tapping

Product overview

The HSS 5/16-18 UNC Spiral Flute Machine Tap is designed for precision internal threading and blind hole tapping in metalworking applications. Manufactured from high-speed steel, the tap provides reliable cutting strength and wear resistance for machine tapping operations. Its spiral flute geometry directs chips upward and away from the cutting area, making it especially suitable for blind holes where effective chip evacuation is important. The titanium-plated surface helps reduce friction and improve wear resistance during threading. With a 5/16-18 UNC thread specification and an approximately 8mm outside diameter, this machine tap is suitable for industrial production, maintenance and general metalworking applications. Key Features: • High-speed steel construction • 5/16-18 UNC thread specification • 8mm outside diameter • Spiral flute design for chip evacuation • Designed for blind hole tapping • Titanium-plated surface • Suitable for machine tapping applications • Stable internal thread machining • OEM and custom thread sizes available Applications: • Blind hole threading • CNC machining • Machine tapping • Fastener thread production • Machinery components • Metalworking and maintenance • Industrial manufacturing

Specifications

Product Type

Spiral Flute Machine Tap

Material

High-Speed Steel (HSS)

Thread Size

5/16-18 UNC

Thread Standard

UNC

Outside Diameter

8mm

Flute Type

Spiral Flute

Hole Type

Blind Hole

Coating

Titanium Plated

Application

Internal Thread Tapping

Chip Evacuation

Upward Chip Evacuation

Place of Origin

Guangdong, China

Gross Weight

0.018kg

Package Size

0.95 × 8.5 × 1.4 cm