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OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute

The OSG Screw Thread Insert STI Tap (SKU 12602500, MPN 12602500) is a general-purpose STI tap with a straight flute design, sized at 5/8"-11 UNC. It features an H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer…

SKU 3G-OTH-262166

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute
Category
General Purpose STI Taps
Available to Order
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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

Technical Specifications

OSG
Manufacturer Part Number
12602500
Type
H4 / 2B-3B, Plug Chamfer
Flute
4
UNC
5/8"-11

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap (SKU 12602500, MPN 12602500) is a general-purpose STI tap with a straight flute design, sized at 5/8"-11 UNC. It features an H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer, making it suitable for threading applications requiring screw thread inserts.

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 OSG Screw Thread Insert STI Tap used for?

The OSG Screw Thread Insert STI Tap is used to cut internal threads in metal or plastic for installing screw thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing where thread repair or reinforcement is needed.

What are the specifications of the OSG STI Tap 12602500?

This OSG STI Tap has a 5/8"-11 UNC thread size, H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is a straight flute, general-purpose tap designed for thread insert installation. The manufacturer part number is 12602500.

Where to buy the OSG 12602500 STI Tap worldwide?

You can source the OSG 12602500 STI Tap through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct tool for your application.

How to select the correct OSG STI Tap for thread inserts?

Select an OSG STI Tap that matches the thread insert size and class. For a 5/8"-11 UNC insert, use this H4 / 2B-3B tap with a plug chamfer. Ensure the tap flute count and material suit your workpiece to achieve proper thread fit and tool life.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG 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
Straight flute STI tap for cutting internal threads prior to installing helical wire thread inserts. UNC 5/8"-11 thread size, H3 tolerance for 2B-3B class fits, plug chamfer with 4 flutes. Suitable for general purpose threading in ferrous and non-ferrous materials
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Straight flute STI tap for cutting internal threads prior to installing helical wire thread inserts. UNC 5/8"-11 thread size, H3 tolerance for 2B-3B class fits, plug chamfer with 4 flutes. Suitable for general purpose threading in ferrous and non-ferrous materials
OSG Screw Thread Insert STI Tap: Straight Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12601700)
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OSG Screw Thread Insert STI Tap: Straight Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12601700)
OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-18 UNF, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12602900)
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-18 UNF, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12602900)
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-13 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12601100)
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-13 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12601100)
OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12602600)
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12602600)
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-20 UNF, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12601300)
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-20 UNF, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 12601300)

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