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OSG Screw Thread Insert STI Tap: Spiral Point, M18x2.5 Metric, D5 / 4H-6H, 3 Flute - Spiral-Point STI Taps for Steel & Stainless Steel
OSGSpiral-Point STI Taps for Steel & Stainless Steel

OSG Screw Thread Insert STI Tap: Spiral Point, M18x2.5 Metric, D5 / 4H-6H, 3 Flute

The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as M18x2.5 Metric with a D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer (MPN 34201201). This tool is designed for…

SKU 3G-OTH-265421

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, M18x2.5 Metric, D5 / 4H-6H, 3 Flute
Category
Spiral-Point STI Taps for Steel & Stainless Steel
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Technical Specifications

OSG
Manufacturer Part Number
34201201
Type
M18x2.5 Metric, D5 / 4H-6H, Plug Chamfer
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as M18x2.5 Metric with a D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer (MPN 34201201). This tool is designed for threading holes to accept screw thread inserts, with the spiral-point geometry directing chips forward for efficient cutting.

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 steel and stainless steel for installing screw thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing where strong, wear-resistant threads are required in softer base materials.

What are the specifications of the OSG 34201201 STI Tap?

The OSG 34201201 is a spiral-point STI tap with M18x2.5 metric thread, D5 / 4H-6H tolerance, 3 flutes, and a plug chamfer. It is designed for threading holes that will accept screw thread inserts in steel and stainless steel workpieces.

Where to buy OSG STI Taps worldwide?

You can source the OSG 34201201 STI Tap through 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.

How to select the correct OSG STI Tap for M18x2.5 threads?

To select the correct OSG STI Tap for M18x2.5 threads, verify the tap tolerance matches the required thread class (D5 / 4H-6H). Ensure the tap is designed for the workpiece material—OSG spiral-point taps suit steel and stainless steel. Use a plug chamfer for through-hole applications.

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 spiral-point sti taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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