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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 3B, 4 Flute - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 3B, 4 Flute

The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 8193-161) is a general-purpose STI tap with a 1"-12 UNF thread, H4 / 3B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets your demand for…

SKU 3G-OTH-262053

Also listed as: 8193161 · 8193 161

Brand
HELI-COIL
Item
Screw Thread Insert STI Tap: Straight Fute, 1"-12 UNF, H4 / 3B, 4 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
8193-161
Type
H4 / 3B, Plug Chamfer
Flute
4
UNF
1"-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 8193-161) is a general-purpose STI tap with a 1"-12 UNF thread, H4 / 3B tolerance, 4 flutes, and a plug chamfer. 3G Electric interprets your demand for this OEM-specified tool, sources it from our global supply network, and delivers it with accountable support across 14 industrial departments.

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 8193-161?

The HELI-COIL STI Tap (MPN 8193-161) has a 1"-12 UNF thread size, H4 / 3B tolerance, 4 flutes, and a plug chamfer. It is a straight-flute, general-purpose tap designed for cutting threads to accept Heli-Coil inserts.

Where to buy HELI-COIL STI Taps worldwide?

3G Electric supplies HELI-COIL STI Taps worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 8193-161 tap.

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

Select the tap that matches the thread size and pitch of the Heli-Coil insert you are installing. For a 1"-12 UNF insert, use the HELI-COIL STI Tap 8193-161 with H4 / 3B tolerance. Always use proper cutting fluid and follow standard tapping practices for best results.

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"-14 UNF, H4 / 3B, 4 Flute, Plug Chamfer (MPN 8193-16)
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HELI-COIL Screw Thread Insert STI Tap: Straight Fute, 1 1/8"-7 UNC, H4 / 3B, 4 Flute, Plug Chamfer (MPN 8187-18)

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