HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M2.5x0.45 Metric, D1 / 4H
The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for creating threads for HELI-COIL inserts. This M2.5x0.45 Metric tap features a D1 / 4H tolerance and a 3-flute design…
SKU 3G-OTH-261998
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Product Description
The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for creating threads for HELI-COIL inserts. This M2.5x0.45 Metric tap features a D1 / 4H tolerance and a 3-flute design, with manufacturer part number 4687-2.5.
Frequently Asked Questions
What is the HELI-COIL Screw Thread Insert STI Tap used for?
The HELI-COIL Screw Thread Insert STI Tap is used to create internal threads for HELI-COIL screw thread inserts. It is a general-purpose tap for industrial applications requiring thread repair or reinforcement in metal components, commonly used in automotive, aerospace, and manufacturing maintenance.
What are the specifications of the HELI-COIL STI Tap 4687-2.5?
The HELI-COIL STI Tap 4687-2.5 is a straight flute tap with M2.5x0.45 metric thread size, D1 / 4H tolerance, and a 3-flute design. It is manufactured by HELI-COIL and is designed for creating threads for HELI-COIL inserts in general-purpose applications.
Where to buy HELI-COIL STI Taps worldwide?
You can source HELI-COIL STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 4687-2.5 tap.
How to select the correct HELI-COIL STI Tap for an insert?
Select the HELI-COIL STI Tap that matches the insert's thread size and tolerance. For example, the 4687-2.5 tap is for M2.5x0.45 metric inserts with D1 / 4H tolerance. Always verify the tap's pitch and diameter against the insert specifications to ensure proper thread formation.
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3G Electric supplies HELI-COIL general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















