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OSG Spiral-Flute STI Tap, #4-40 UNC, H2 / 2B-3B, 3 Flute - Spiral-Flute STI Taps for Nickel & Titanium
OSGSpiral-Flute STI Taps for Nickel & Titanium

OSG Spiral-Flute STI Tap, #4-40 UNC, H2 / 2B-3B, 3 Flute

OSG Spiral-Flute STI Taps for Nickel & Titanium.

SKU 3G-OTH-276716

Brand
OSG
Item
Spiral-Flute STI Tap, #4-40 UNC, H2 / 2B-3B, 3 Flute
Part Number
31520208
Category
Spiral-Flute STI Taps for Nickel & Titanium
Available to Order
Also known as:31520208OSG
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Technical Specifications

OSG
Manufacturer Part Number
31520208

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

Product Description

OSG Spiral-Flute STI Taps for Nickel & Titanium.

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 nickel and titanium alloys for installing helical wire thread inserts. It is essential in aerospace, medical, and high-performance industrial applications where thread strength and reliability are critical.

What are the specifications of the OSG STI Tap #4-40 UNC?

This OSG STI Tap has a #4-40 UNC thread size, H2 / 2B-3B tolerance, 3-flute spiral flute design, and is engineered for nickel and titanium alloys. The manufacturer part number is 31520208. It produces threads that accept standard screw thread inserts.

Where to buy OSG STI Taps for nickel and titanium worldwide?

3G Electric supplies OSG STI Taps like the #4-40 UNC spiral flute model (MPN 31520208) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this precision threading tool.

How to select the correct STI tap for thread inserts?

Select an STI tap based on the insert size (e.g., #4-40 UNC), material (nickel/titanium requires spiral flute design), and thread class (H2 / 2B-3B). OSG taps are designed for these demanding materials. Always match the tap to the insert manufacturer's specifications for proper thread fit.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG Products

3G Electric supplies OSG spiral-flute sti taps for nickel & titanium. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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