Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

OSG Screw Thread Insert STI Tap: Straight Fute, M18x2.5 Metric, D5 / 4H-6H - General Purpose STI Taps
OSGGeneral Purpose STI Taps

OSG Screw Thread Insert STI Tap: Straight Fute, M18x2.5 Metric, D5 / 4H-6H

The OSG Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap in M18x2.5 Metric with a D5 / 4H-6H tolerance class and 4 flutes (MPN 12801200). 3G Electric interprets this demand and sources the…

SKU 3G-OTH-262024

Brand
OSG
Item
Screw Thread Insert STI Tap: Straight Fute, M18x2.5 Metric, D5 / 4H-6H
Category
General Purpose STI Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

OSG
Manufacturer Part Number
12801200
Type
M18x2.5 Metric, D5 / 4H-6H
Flute
4
View Full Spec Sheet

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

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

Product Description

The OSG Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap in M18x2.5 Metric with a D5 / 4H-6H tolerance class and 4 flutes (MPN 12801200). 3G Electric interprets this demand and sources the exact OEM-specified tool, backed by our specialist expertise across 14 industrial departments — and we supply far more than is listed.

Frequently Asked Questions

What is an OSG Screw Thread Insert STI Tap used for?

An OSG Screw Thread Insert STI Tap is used to cut internal threads in a workpiece before installing a helical wire thread insert. It is commonly applied in automotive, aerospace, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.

What are the specifications of the OSG STI Tap M18x2.5?

The OSG STI Tap has a metric thread size of M18x2.5, a straight flute design, and a D5 / 4H-6H tolerance class. It features 4 flutes for efficient chip evacuation and is a general-purpose tap for thread insert installation. The manufacturer part number is 12801200.

Where to buy OSG STI Taps worldwide?

You can source OSG STI Taps from 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 on this M18x2.5 tap.

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

Select an OSG STI Tap based on the thread insert size and material. For M18x2.5 metric inserts, use a tap with matching pitch and a D5 / 4H-6H tolerance class. Ensure the tap has sufficient flutes (e.g., 4 flutes) for chip clearance in the workpiece material.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
OSG Screw Thread Insert STI Tap: Straight Fute, M22x2.5 Metric, D5 / 4H-6H, 4 Flute (MPN 12801400). Key specifications — attr1299996: D5 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, M22x2.5 Metric, D5 / 4H-6H, 4 Flute (MPN 12801400). Key specifications — attr1299996: D5 / 4H-6H.
OSG Screw Thread Insert STI Tap: Straight Fute, M20x2.5 Metric, D5 / 4H-6H, 4 Flute (MPN 12801300). Key specifications — attr1299996: D5 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, M20x2.5 Metric, D5 / 4H-6H, 4 Flute (MPN 12801300). Key specifications — attr1299996: D5 / 4H-6H.
OSG Screw Thread Insert STI Tap: Straight Fute, M14x2 Metric, D5 / 4H-6H, 4 Flute, High Speed Steel (MPN 12801000). Key specifications — attr1299996: D5 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, M14x2 Metric, D5 / 4H-6H, 4 Flute, High Speed Steel (MPN 12801000). Key specifications — attr1299996: D5 / 4H-6H.
OSG Screw Thread Insert STI Tap: Straight Fute, M12x1.75 Metric, D4 / 4H-6H, 4 Flute (MPN 12800900). Key specifications — attr1299996: D4 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, M12x1.75 Metric, D4 / 4H-6H, 4 Flute (MPN 12800900). Key specifications — attr1299996: D4 / 4H-6H.
OSG Screw Thread Insert STI Tap: Straight Fute, M2.5x0.45 Metric, D2 / 4H-6H, 2 Flute (MPN 12800200). Key specifications — attr1299996: D2 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, M2.5x0.45 Metric, D2 / 4H-6H, 2 Flute (MPN 12800200). Key specifications — attr1299996: D2 / 4H-6H.
OSG Screw Thread Insert STI Tap: Straight Fute, M8x1.25 Metric, D3 / 4H-6H, 4 Flute (MPN 12800700). Key specifications — attr1299996: D3 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, M8x1.25 Metric, D3 / 4H-6H, 4 Flute (MPN 12800700). Key specifications — attr1299996: D3 / 4H-6H.

More from OSG

View all OSG parts
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-20 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12601400). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-20 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12601400). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-20 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1813900). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 1/2"-20 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1813900). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12602600). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12602600). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Straight Fute, 3/4"-16 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12603800). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 3/4"-16 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 12603800). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Straight Fute, #3-48 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 6003200). Key specifications — attr1299996: H2 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, #3-48 UNC, H2 / 2B-3B, 3 Flute, Plug Chamfer (MPN 6003200). Key specifications — attr1299996: H2 / 2B-3B.
OSG Screw Thread Insert STI Tap: Straight Fute, 7/16"-14 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 6019800). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 7/16"-14 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer (MPN 6019800). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Straight Fute, M3x0.5 Metric, D2 / 4H-6H, 3 Flute, High Speed Steel (MPN 12800300). Key specifications — attr1299996: D2 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, M3x0.5 Metric, D2 / 4H-6H, 3 Flute, High Speed Steel (MPN 12800300). Key specifications — attr1299996: D2 / 4H-6H.
OSG Screw Thread Insert STI Tap: Straight Fute, 7/16"-20 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1813500). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Straight Fute, 7/16"-20 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1813500). Key specifications — attr1299996: H3 / 2B-3B.