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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M8x1.25 Metric, D9 / 5H, 4 Flute - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M8x1.25 Metric, D9 / 5H, 4 Flute

The HELI-COIL Screw Thread Insert STI Tap is a general-purpose STI tap with a straight flute design. This M8x1.25 Metric tap features a D9 / 5H tolerance, 4 flutes, and a plug chamfer (MPN 2087-8).

SKU 3G-OTH-261999

Also listed as: 20878 · 2087 8

Brand
HELI-COIL
Item
Screw Thread Insert STI Tap: Straight Fute, M8x1.25 Metric, D9 / 5H, 4 Flute
Category
General Purpose STI Taps
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

HELI-COIL
Manufacturer Part Number
2087-8
Type
M8x1.25 Metric, D9 / 5H, Plug Chamfer
Flute
4

Technical Documents

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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HELI-COIL Screw Thread Insert STI Tap is a general-purpose STI tap with a straight flute design. This M8x1.25 Metric tap features a D9 / 5H tolerance, 4 flutes, and a plug chamfer (MPN 2087-8).

Frequently Asked Questions

What is the HELI-COIL Screw Thread Insert STI Tap used for?

The HELI-COIL STI Tap is used to pre-tap holes for installing HELI-COIL screw thread inserts. It is designed for general-purpose threading in metal and industrial applications, ensuring accurate M8x1.25 Metric threads with a D9 / 5H tolerance for reliable insert seating.

What are the specifications of the HELI-COIL STI Tap 2087-8?

This tap has an M8x1.25 Metric thread size, D9 / 5H tolerance, 4 straight flutes, and a plug chamfer. It is a general-purpose STI tap from HELI-COIL, with manufacturer part number 2087-8. The straight flute design aids chip evacuation during threading.

Where to buy HELI-COIL STI Tap 2087-8 worldwide?

3G Electric supplies the HELI-COIL STI Tap 2087-8 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this tap for your threading needs.

How to select the correct HELI-COIL STI Tap for an M8x1.25 insert?

Select an STI tap specifically marked for M8x1.25 Metric threads with a D9 / 5H tolerance, like the HELI-COIL 2087-8. Ensure the tap matches the insert size and thread class. Use proper tapping lubricant and follow standard machining practices for thread depth and alignment.

Used in

Common applications for HELI-COIL
Aerospace engine repair — HELI-COIL STI taps for M12x1.75 metric threads in aluminum alloy components
Automotive transmission rebuild — HELI-COIL STI taps for 7/16-14 UNC threads in cast iron housings
Industrial pump maintenance — HELI-COIL STI taps for #10-32 UNF threads in stainless steel pump bodies
Hydraulic cylinder repair — HELI-COIL STI taps for M6x1 metric threads in steel cylinder heads
General manufacturing — HELI-COIL STI taps for 9/16-18 UNF threads in machinery base plates

HELI-COIL Products

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M8x1.25 Metric, D9 / 4H, 4 Flute, Plug Chamfer (MPN 4687-8)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M8x1.25 Metric, D9 / 4H, 4 Flute, Plug Chamfer (MPN 4687-8)
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General purpose STI tap for creating internal threads for screw thread inserts. M5x0.8 metric size with straight flute design, 3 flutes, and plug chamfer. Rated D7 / 5H. Suitable for thread repair and reinforcement in metal components
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General purpose STI tap for creating internal threads for screw thread inserts. M5x0.8 metric size with straight flute design, 3 flutes, and plug chamfer. Rated D7 / 5H. Suitable for thread repair and reinforcement in metal components
Straight flute STI tap for cutting internal threads to accept HELI-COIL screw thread inserts. M4x0.7 metric thread with D6 / 5H tolerance, plug chamfer, and 3 flutes. Used in general machining and repair applications for thread restoration
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M5x0.8 Metric, D7 / 4H, 3 Flute, Plug Chamfer (MPN 4687-5)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M5x0.8 Metric, D7 / 4H, 3 Flute, Plug Chamfer (MPN 4687-5)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M3x0.5 Metric, D2 / 5H, 3 Flute, Plug Chamfer (MPN 2087-3)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M3x0.5 Metric, D2 / 5H, 3 Flute, Plug Chamfer (MPN 2087-3)

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