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HELI-COIL General Purpose STI Tap, M12x1.75 Metric, H3 / 4H, 4 Flute - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL General Purpose STI Tap, M12x1.75 Metric, H3 / 4H, 4 Flute

The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for M12x1.75 Metric threads. It features a 4-flute straight flute design and is rated H3 / 4H tolerance (MPN 4687-12).

SKU 3G-OTH-262056

Also listed as: 468712 · 4687 12

Brand
HELI-COIL
Item
General Purpose STI Tap, M12x1.75 Metric, H3 / 4H, 4 Flute
Category
General Purpose STI Taps
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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
4687-12
Type
M12x1.75 Metric, H3 / 4H
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: Straight Flute is a general-purpose STI tap designed for M12x1.75 Metric threads. It features a 4-flute straight flute design and is rated H3 / 4H tolerance (MPN 4687-12).

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 cut internal threads for installing HELI-COIL screw thread inserts. It is designed for general-purpose thread repair and reinforcement in metal components, commonly used in automotive, aerospace, and industrial maintenance applications.

What are the specifications of the HELI-COIL STI Tap 4687-12?

The HELI-COIL STI Tap 4687-12 is a straight flute tap with a 4-flute design. It cuts M12x1.75 Metric threads and is rated H3 / 4H tolerance. This general-purpose tap is manufactured by HELI-COIL and is suitable for installing screw thread inserts in various materials.

Where to buy HELI-COIL STI Tap 4687-12 worldwide?

You can source the HELI-COIL STI Tap 4687-12 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this and other HELI-COIL tooling.

How to select the correct STI tap for HELI-COIL inserts?

Select an STI tap that matches the insert thread size and pitch, such as M12x1.75 for this HELI-COIL tap. Ensure the tap tolerance (H3 / 4H) aligns with the required thread class. Use a straight flute design for general-purpose through-hole threading. Always follow the insert manufacturer's recommendations.

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, M12x1.5 Metric, D11 / 4H, 4 Flute (MPN 5476-12)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M12x1.5 Metric, D11 / 4H, 4 Flute (MPN 5476-12)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M14x1.5 Metric, H3 / 4H, 4 Flute, Plug Chamfer (MPN 5476-14)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M14x1.5 Metric, H3 / 4H, 4 Flute, Plug Chamfer (MPN 5476-14)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M14x2 Metric, H3 / 4H, 4 Flute, Plug Chamfer (MPN 4687-14)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M14x2 Metric, H3 / 4H, 4 Flute, Plug Chamfer (MPN 4687-14)
General purpose STI tap for creating internal threads for screw thread inserts. M2.5x0.45 metric thread size with D1 / 4H tolerance and 3-flute straight flute design. Used in thread repair and reinforcement applications in metal components
HELI-COIL
General purpose STI tap for creating internal threads for screw thread inserts. M2.5x0.45 metric thread size with D1 / 4H tolerance and 3-flute straight flute design. Used in thread repair and reinforcement applications in metal components
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M6x1 Metric, H2 / 4H, 3 Flute, Plug Chamfer (MPN 4687-6)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M6x1 Metric, H2 / 4H, 3 Flute, Plug Chamfer (MPN 4687-6)

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