We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

HELI-COIL General Purpose STI Tap, 7/8"-9 UNC, H5/2B, Plug Chamfer, 4 Flutes - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL General Purpose STI Tap, 7/8"-9 UNC, H5/2B, Plug Chamfer, 4 Flutes

The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 18187-14) is a general-purpose STI tap for 7/8"-9 UNC threads, with H5 / 2B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets your demand…

SKU 3G-OTH-262101

Also listed as: 1818714 · 18187 14

Brand
HELI-COIL
Item
General Purpose STI Tap, 7/8"-9 UNC, H5/2B, Plug Chamfer, 4 Flutes
Category
General Purpose STI Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

HELI-COIL
Manufacturer Part Number
18187-14
Type
H5 / 2B, Plug Chamfer
Flute
4
UNC
7/8"-9

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 18187-14) is a general-purpose STI tap for 7/8"-9 UNC threads, with H5 / 2B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets your demand for this OEM-specified tool and delivers it across 14 industrial departments — with specialist depth in combustion, pumps and controls as a trust anchor.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

This HELI-COIL 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 18187-14?

The HELI-COIL STI Tap has a 7/8"-9 UNC thread size, H5/2B tolerance, straight flute design with 4 flutes, and a plug chamfer. It is a general-purpose tap for creating threads that accept HELI-COIL inserts. The manufacturer part number is 18187-14.

Where to buy HELI-COIL STI Tap 18187-14 worldwide?

You can source the HELI-COIL STI Tap 18187-14 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.

How to select the correct HELI-COIL STI Tap for thread repair?

Select a HELI-COIL STI tap that matches the thread size and pitch of the insert you plan to install. For the 7/8"-9 UNC insert, use this tap with H5/2B tolerance. Ensure the tap chamfer type (plug, bottoming, or taper) suits your hole depth. Always follow HELI-COIL installation guidelines.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 7/8"-9 UNC, H3 / 3B, 4 Flute, Plug Chamfer (MPN 8187-14)
HELI-COIL
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 7/8"-9 UNC, H3 / 3B, 4 Flute, Plug Chamfer (MPN 8187-14)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B, 4 Flute, Plug Chamfer (MPN 18187-10)
HELI-COIL
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B, 4 Flute, Plug Chamfer (MPN 18187-10)
Straight flute tap for cutting internal threads to accept HELI-COIL screw thread inserts. Features 9/16"-12 UNC thread size, H3/3B tolerance, 4 flutes, and plug chamfer. Used for general-purpose thread repair and reinforcement in metal components
HELI-COIL
Straight flute tap for cutting internal threads to accept HELI-COIL screw thread inserts. Features 9/16"-12 UNC thread size, H3/3B tolerance, 4 flutes, and plug chamfer. Used for general-purpose thread repair and reinforcement in metal components
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B, 4 Flute, Plug Chamfer (MPN 18187-12)
HELI-COIL
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 3/4"-10 UNC, H5 / 2B, 4 Flute, Plug Chamfer (MPN 18187-12)
General purpose STI tap for cutting internal threads to install screw thread inserts. Features 7/8"-14 UNF thread size, H3 / 3B tolerance, plug chamfer, and 4 straight flutes. Suitable for thread repair and reinforcement in metal components
HELI-COIL
General purpose STI tap for cutting internal threads to install screw thread inserts. Features 7/8"-14 UNF thread size, H3 / 3B tolerance, plug chamfer, and 4 straight flutes. Suitable for thread repair and reinforcement in metal components
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 9/16"-18 UNF, H3 / 3B, 4 Flute, Plug Chamfer (MPN 38193-9)
HELI-COIL
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 9/16"-18 UNF, H3 / 3B, 4 Flute, Plug Chamfer (MPN 38193-9)

More from HELI-COIL

View all HELI-COIL parts
Straight flute STI tap for cutting threads to accept HELI-COIL screw thread inserts. M10x1.5 metric thread size, D10 / 5H tolerance class, 4-flute design. Used in metal or plastic for repair or new production in general industrial applications
HELI-COIL
Straight flute STI tap for cutting threads to accept HELI-COIL screw thread inserts. M10x1.5 metric thread size, D10 / 5H tolerance class, 4-flute design. Used in metal or plastic for repair or new production in general industrial applications
Straight flute STI tap for cutting internal threads to accept HELI-COIL screw thread inserts. Designed for M16x2 metric threads with H3 / 4H tolerance, plug chamfer, and 4 flutes. Suitable for general-purpose threading applications in maintenance and repair
HELI-COIL
Straight flute STI tap for cutting internal threads to accept HELI-COIL screw thread inserts. Designed for M16x2 metric threads with H3 / 4H tolerance, plug chamfer, and 4 flutes. Suitable for general-purpose threading applications in maintenance and repair
Straight flute STI tap for cutting internal threads for screw thread inserts. UNC 1 1/2"-6 size with H6 / 3B thread class and plug chamfer. Suitable for general-purpose threading in materials such as aluminum, cast iron, or steel
HELI-COIL
Straight flute STI tap for cutting internal threads for screw thread inserts. UNC 1 1/2"-6 size with H6 / 3B thread class and plug chamfer. Suitable for general-purpose threading in materials such as aluminum, cast iron, or steel
This STI tap is used to cut internal threads for installing screw thread inserts. It features a 1/4"-20 UNC thread size, H2 / 3B tolerance, plug chamfer, and 3 straight flutes. Suitable for general-purpose thread repair and reinforcement in metal components
HELI-COIL
This STI tap is used to cut internal threads for installing screw thread inserts. It features a 1/4"-20 UNC thread size, H2 / 3B tolerance, plug chamfer, and 3 straight flutes. Suitable for general-purpose thread repair and reinforcement in metal components
This STI tap is used to cut internal threads in a workpiece prior to installing a screw thread insert. It features a 3/4"-10 UNC thread size, H3/3B tolerance class, plug chamfer, and 4 straight flutes. Suitable for general-purpose threading applications in automotive, aerospace, and industrial maintenance
HELI-COIL
This STI tap is used to cut internal threads in a workpiece prior to installing a screw thread insert. It features a 3/4"-10 UNC thread size, H3/3B tolerance class, plug chamfer, and 4 straight flutes. Suitable for general-purpose threading applications in automotive, aerospace, and industrial maintenance
This STI tap is designed for cutting internal threads to accept Heli-Coil screw thread inserts. It features a #4-40 UNC thread size, H1 / 3B tolerance, plug chamfer, and 3 straight flutes. Commonly used for thread repair in metal components across various maintenance applications
HELI-COIL
This STI tap is designed for cutting internal threads to accept Heli-Coil screw thread inserts. It features a #4-40 UNC thread size, H1 / 3B tolerance, plug chamfer, and 3 straight flutes. Commonly used for thread repair in metal components across various maintenance applications
General purpose STI tap for cutting internal threads to accept screw thread inserts. Designed for M10x1.25 Metric threads with D10 / 4H tolerance and 4 straight flutes. Used in metalworking and repair applications
HELI-COIL
General purpose STI tap for cutting internal threads to accept screw thread inserts. Designed for M10x1.25 Metric threads with D10 / 4H tolerance and 4 straight flutes. Used in metalworking and repair applications
This general purpose STI tap cuts internal threads for installing screw thread inserts. It features M10x1 metric thread size, D10 / 4H tolerance, 4 flutes, and a plug chamfer. Suitable for tapping in metal components for thread repair or reinforcement
HELI-COIL
This general purpose STI tap cuts internal threads for installing screw thread inserts. It features M10x1 metric thread size, D10 / 4H tolerance, 4 flutes, and a plug chamfer. Suitable for tapping in metal components for thread repair or reinforcement