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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M16x2 Metric, H3 / 4H, 4 Flute - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M16x2 Metric, H3 / 4H, 4 Flute

The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for M16x2 metric threads. It features a 4-flute design with a plug chamfer and is rated H3 / 4H (MPN 4687-16).

SKU 3G-OTH-262036

Also listed as: 468716 · 4687 16

Brand
HELI-COIL
Item
Screw Thread Insert STI Tap: Straight Fute, M16x2 Metric, H3 / 4H, 4 Flute
Category
General Purpose STI Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

HELI-COIL
Manufacturer Part Number
4687-16
Type
M16x2 Metric, H3 / 4H, 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: Straight Flute is a general-purpose STI tap designed for M16x2 metric threads. It features a 4-flute design with a plug chamfer and is rated H3 / 4H (MPN 4687-16).

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 applications requiring M16x2 metric threads, commonly in automotive, aerospace, and industrial maintenance.

What are the specifications of the HELI-COIL STI Tap 4687-16?

The HELI-COIL STI Tap (MPN 4687-16) is a straight-flute tap for M16x2 metric threads. It has 4 flutes, a plug chamfer, and a thread tolerance of H3 / 4H. It is designed for general-purpose use with HELI-COIL inserts.

Where to buy the HELI-COIL STI Tap 4687-16 worldwide?

You can source the HELI-COIL STI Tap 4687-16 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct HELI-COIL tap for your application.

How to select the correct HELI-COIL STI Tap for M16x2 threads?

To select the correct HELI-COIL STI Tap, ensure it matches the thread size (M16x2), tolerance class (H3 / 4H), and tap style (straight flute, plug chamfer). The HELI-COIL brand tap (MPN 4687-16) is designed specifically for installing HELI-COIL inserts in general-purpose applications.

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, M14x2 Metric, H3 / 4H, 4 Flute, Plug Chamfer (MPN 4687-14)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 3/8"-16 UNC, H3 / 3B, 4 Flute, Plug Chamfer (MPN 6CPB)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M24x3 Metric, H4 / 4H, 4 Flute, Plug Chamfer (MPN 4687-24)

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