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HELI-COIL General Purpose STI Tap - General Purpose STI Taps
HELI-COILGeneral Purpose STI Taps

HELI-COIL General Purpose STI Tap

The HELI-COIL Screw Thread Insert STI Tap (Straight Flute, MPN 8193-20) is a general-purpose STI tap with a 1 1/4"-12 UNF thread, H4 / 3B tolerance, 6 flutes, and a plug chamfer. 3G Electric interprets demand and…

SKU 3G-OTH-262067

Also listed as: 819320 · 8193 20

Brand
HELI-COIL
Item
General Purpose STI Tap
Part Number
8193-20
Category
General Purpose STI Taps
Available to Order
Also known as:8193-20HELI-COIL
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Worldwide Shipping
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Datasheet on Request
Technical specs
1-Day Quote
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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

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

HELI-COIL
Manufacturer Part Number
8193-20
Type
H4 / 3B, Plug Chamfer
UNSPSC
23153305
Mfr. Model
8193-20
Right Hand
threads are the most common and run clockwise, pointing up and to the right.
Class of Fit
3B
Thread Limit
H4
Thread Length
3
Drill Bit Size
1-9/32
Overall Length
6-1/16
Shank Diameter
1-27/250
High Speed Steel
taps offer good wear resistance, have some flexibility, and can absorb some shock and vibration.
Number of Flutes
6
Bright (Uncoated)
tools can be resharpened and are a good choice for use on soft materials, such as aluminum and low-carbon steel.

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 8193-20) is a general-purpose STI tap with a 1 1/4"-12 UNF thread, H4 / 3B tolerance, 6 flutes, and a plug chamfer. 3G Electric interprets demand and delivers this genuine industrial tap across 14 departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.

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 a HELI-COIL Screw Thread Insert STI Tap used for?

A HELI-COIL STI Tap is used to cut internal threads in a pre-drilled hole before installing a HELI-COIL screw thread insert. It is commonly applied in automotive, aerospace, and industrial maintenance to repair or reinforce stripped threads in metal components.

What are the specifications of the HELI-COIL STI Tap 8193-20?

The HELI-COIL STI Tap 8193-20 is a general-purpose tap with a 1 1/4"-12 UNF thread, H4 / 3B tolerance, plug chamfer, and 6 straight flutes. It is designed for use with HELI-COIL screw thread inserts to produce threads that accept the insert.

Where to buy HELI-COIL STI Tap 8193-20 worldwide?

3G Electric supplies the HELI-COIL STI Tap 8193-20 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.

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

Select a HELI-COIL STI Tap that matches the thread size and pitch of the original fastener, such as 1 1/4"-12 UNF. Ensure the tap tolerance (e.g., H4 / 3B) aligns with the insert requirements. Always use the correct tap drill size per HELI-COIL specifications.

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
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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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