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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 1/2"-12 UNF, H4 / 3B, 6 Flute - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 1/2"-12 UNF, H4 / 3B, 6 Flute

The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 8193-24) is a general-purpose STI tap with a 1 1/2"-12 UNF thread, H4 / 3B tolerance, 6 flutes, and a plug chamfer. 3G Electric interprets customer…

SKU 3G-OTH-261990

Also listed as: 819324 · 8193 24

Brand
HELI-COIL
Item
Screw Thread Insert STI Tap: Straight Fute, 1 1/2"-12 UNF, H4 / 3B, 6 Flute
Category
General Purpose STI Taps
Available to Order
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Local availability & support

Delivery
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
8193-24
Type
H4 / 3B, Plug Chamfer
Flute
6
UNF
1 1/2"-12

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, MPN 8193-24) is a general-purpose STI tap with a 1 1/2"-12 UNF thread, H4 / 3B tolerance, 6 flutes, and a plug chamfer. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

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

The HELI-COIL STI Tap is used to cut internal threads for installing HELI-COIL screw thread inserts. It is designed for general-purpose tapping in industrial applications, ensuring precise thread formation for insert installation in metal components.

What are the specifications of the HELI-COIL STI Tap 8193-24?

This STI tap has a 1 1/2"-12 UNF thread size, H4 / 3B tolerance, 6 flutes, and a plug chamfer. It is a straight flute, general-purpose tap designed for HELI-COIL inserts. The manufacturer part number is 8193-24.

Where to buy the HELI-COIL STI Tap 8193-24 worldwide?

You can source the HELI-COIL STI Tap 8193-24 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your operations.

How to select the correct HELI-COIL STI Tap for an application?

Select the STI tap based on the thread size and tolerance required for your HELI-COIL insert. Match the tap's thread designation (e.g., 1 1/2"-12 UNF) and tolerance class (H4 / 3B) to the insert specifications. Consult the HELI-COIL brand guidelines for proper selection.

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, 1 1/4"-12 UNF, H4 / 3B, 6 Flute, Plug Chamfer (MPN 8193-20)
HELI-COIL
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 1/4"-12 UNF, H4 / 3B, 6 Flute, Plug Chamfer (MPN 8193-20)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 1/8"-12 UNF, H4 / 3B, 6 Flute, Plug Chamfer (MPN 8193-18)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 1/8"-12 UNF, H4 / 3B, 6 Flute, Plug Chamfer (MPN 8193-18)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 3/8"-12 UNF, H4 / 3B, 6 Flute, Plug Chamfer (MPN 8193-22)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 3/8"-12 UNF, H4 / 3B, 6 Flute, Plug Chamfer (MPN 8193-22)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 3B, 4 Flute, Plug Chamfer (MPN 8193-161)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 3B, 4 Flute, Plug Chamfer (MPN 8193-161)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1/2"-13 UNC, H3 / 3B, 4 Flute, Plug Chamfer (MPN 8CPB)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1/2"-13 UNC, H3 / 3B, 4 Flute, Plug Chamfer (MPN 8CPB)
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1"-14 UNF, H4 / 3B, 4 Flute, Plug Chamfer (MPN 8193-16)
HELI-COIL
HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1"-14 UNF, H4 / 3B, 4 Flute, Plug Chamfer (MPN 8193-16)

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