EXW Singapore — collect or forward from our Singapore office.

3G Electric
OSG 1/2"-20 UNF Spiral-Point STI Tap for Nickel & Titanium - Spiral-Point STI Taps for Nickel & Titanium
OSGSpiral-Point STI Taps for Nickel & Titanium

OSG 1/2"-20 UNF Spiral-Point STI Tap for Nickel & Titanium

The OSG Screw Thread Insert STI Tap is a spiral-point tap for nickel and titanium, specified as 1/2"-20 UNF with H4 / 2B-3B tolerance and a plug chamfer. It features 3 flutes and is identified by manufacturer part…

SKU 3G-OTH-279738

Brand
OSG
Item
1/2"-20 UNF Spiral-Point STI Tap for Nickel & Titanium
Part Number
31441008
Category
Spiral-Point STI Taps for Nickel & Titanium
Available to Order
Also known as:31441008OSG
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
31441008
Type
H4 / 2B-3B, Plug Chamfer
Flute
3
UNF
1/2"-20

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 is a spiral-point tap for nickel and titanium, specified as 1/2"-20 UNF with H4 / 2B-3B tolerance and a plug chamfer. It features 3 flutes and is identified by manufacturer part number 31441008.

Frequently Asked Questions

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

This OSG spiral-point STI tap is designed for threading holes in nickel and titanium alloys before installing screw thread inserts. It is commonly used in aerospace, automotive, and heavy equipment manufacturing where high-strength, corrosion-resistant threads are required.

What are the specifications of the OSG 31441008 STI tap?

The OSG 31441008 is a spiral-point STI tap with 1/2"-20 UNF thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is engineered for threading in nickel and titanium alloys, ensuring precise fit for screw thread inserts.

Where to buy OSG STI taps in worldwide?

3G Electric supplies OSG STI taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the OSG 31441008 spiral-point tap.

How to select the correct STI tap for nickel alloys?

Select an STI tap with spiral-point geometry and H4 tolerance for nickel alloys, like the OSG 31441008. Ensure the tap matches the insert's thread size (1/2"-20 UNF) and chamfer type (plug). Use proper cutting fluid and rigid tapping equipment to avoid work hardening.

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
Not sure this is the right part? Photo-identify it→

OSG Products

3G Electric supplies OSG spiral-point sti taps for nickel & titanium. 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 →

More from OSG

View all OSG parts →
Spiral-point STI tap for cutting internal threads in nickel and titanium alloys prior to installing screw thread inserts. #10-32 UNF thread size, H3 / 2B-3B tolerance, plug chamfer, 3-flute design. Used in applications requiring high-strength, corrosion-resistant threaded holes
OSG
Spiral-point STI tap for cutting internal threads in nickel and titanium alloys prior to installing screw thread inserts. #10-32 UNF thread size, H3 / 2B-3B tolerance, plug chamfer, 3-flute design. Used in applications requiring high-strength, corrosion-resistant threaded holes
Spiral-point STI tap for threading holes in nickel and titanium alloys prior to installing screw thread inserts. Features a 5/16"-24 UNF thread size, H3 / 2B-3B tolerance, plug chamfer, and 3 flutes. Suitable for applications requiring strong, reliable threads in demanding materials
OSG
Spiral-point STI tap for threading holes in nickel and titanium alloys prior to installing screw thread inserts. Features a 5/16"-24 UNF thread size, H3 / 2B-3B tolerance, plug chamfer, and 3 flutes. Suitable for applications requiring strong, reliable threads in demanding materials

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first