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These free running, helically-coiled wire thread inserts are manufactured from aircraft grade A2/304 stainless steel. When correctly installed into tapped holes, the inserts provide high performance internal threads that exceed the strength of most parent materials.

Corrosion, heat, and wear resistant.
Lightweight and space-saving without sacrificing thread strength.
Maintains bolt tension under severe vibration conditions.
Useful for both new applications and repair work.
Used in DIY, OEM, aerospace, automotive, and precision engineering applications.
Manufactured to national and international industry standards in accordance with ISO 9001:2015.

An M5x0.8 HSS wire insert finishing tap, also known as an intermediate or second lead tap. It has 3 to 5 taper lead threads that will provide a tapped hole with a full diameter thread.

M5X0.8 Wire Insert Finishing Tap

These free running, helically-coiled wire thread inserts are manufactured from aircraft grade A2/304 stainless steel. When correctly installed into tapped holes, the inserts provide high performance internal threads that exceed the strength of most parent materials.

Corrosion, heat, and wear resistant.
Lightweight and space-saving without sacrificing thread strength.
Maintains bolt tension under severe vibration conditions.
Useful for both new applications and repair work.
Used in DIY, OEM, aerospace, automotive, and precision engineering applications.
Manufactured to national and international industry standards in accordance with ISO 9001:2015.

M10x1.5x1.5D Free Running Wire Thread Inserts (Pack of 50)

An M2.5x0.45 HSS wire insert spiral flute tap for use in blind holes. Its helical flutes direct the swarf back out of the tapped hole.

M2.5X0.45 Wire Insert Spiral Flute Tap

An M4x0.7 HSS wire insert spiral flute tap for use in blind holes. Its helical flutes direct the swarf back out of the tapped hole.

M4x0.7 wire insert spiral flute tap

M12x1.75x1.5D Free Running Wire Thread Inserts (Pack of 100)

M2.5x0.45x1.5D Free Running Wire Thread Inserts (Pack of 100)

M3x0.5x1.5D Free Running Wire Thread Inserts (Pack of 100)

M5x0.8x2D Free Running Wire Thread Inserts (Pack of 100)

M14x2x2D Free Running Wire Thread Inserts (Pack of 50)

M4x0.7x2D Free Running Wire Thread Inserts (Pack of 100)

M16x2x1.5D Free Running Wire Thread Inserts (Pack of 50)

M7x1x2D Free Running Wire Thread Inserts (Pack of 50)

M6x1x2D Free Running Wire Thread Inserts (Pack of 100)

M8x1.25x1D Free Running Wire Thread Inserts (Pack of 100)

Our Official WTI Fasteners Product Range