We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H3 / 2B-3B - Spiral-Flute STI Taps for Nickel & Titanium
OSGSpiral-Flute STI Taps for Nickel & Titanium

OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H3 / 2B-3B

SKU 3G-OTH-276711

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H3 / 2B-3B
Category
Spiral-Flute STI Taps for Nickel & Titanium
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
31520808
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

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 thread inserts. It is essential in aerospace, automotive, and industrial applications where strong, wear-resistant threads are required in hard-to-machine materials.

What are the specifications of the OSG STI Tap 3/8-24 UNF?

This OSG STI Tap has a 3/8-24 UNF thread size, H3 / 2B-3B tolerance, and a spiral-flute design with 3 flutes. It is engineered for threading nickel and titanium alloys. The manufacturer part number is 31520808.

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

3G Electric supplies OSG STI Taps like the 3/8-24 UNF spiral-flute model to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct tool for threading nickel and titanium alloys. Contact us for availability and lead times.

How to select the correct STI tap for thread inserts?

Select an STI tap based on the thread size (e.g., 3/8-24 UNF), material (nickel/titanium), and required tolerance class (H3 / 2B-3B). Use a spiral-flute design for chip evacuation in deep or blind holes. Always match the tap to the insert manufacturer's specifications for proper fit.

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-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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H3 / 2B-3B, 3 Flute (MPN 31540808). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 3/8"-24 UNF, H3 / 2B-3B, 3 Flute (MPN 31540808). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B, 3 Flute (MPN 31520608). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B, 3 Flute (MPN 31520608). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute (MPN 31540708). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute (MPN 31540708). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B, 3 Flute (MPN 31540608). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B, 3 Flute (MPN 31540608). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-32 UNF, H3 / 2B-3B, 3 Flute (MPN 31520508). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-32 UNF, H3 / 2B-3B, 3 Flute (MPN 31520508). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 7/16"-20 UNF, H4 / 2B-3B, 3 Flute (MPN 31520908). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 7/16"-20 UNF, H4 / 2B-3B, 3 Flute (MPN 31520908). Key specifications — attr1299996: H4 / 2B-3B.

More from OSG

View all OSG parts →
OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute (MPN 31520708). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute (MPN 31520708). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute (MPN 31541008). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute (MPN 31541008). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H3 / 2B-3B, 3 Flute (MPN 31520408). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H3 / 2B-3B, 3 Flute (MPN 31520408). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #4-40 UNC, H2 / 2B-3B, 3 Flute (MPN 31520208). Key specifications — attr1299996: H2 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #4-40 UNC, H2 / 2B-3B, 3 Flute (MPN 31520208). Key specifications — attr1299996: H2 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #6-32 UNC, H3 / 2B-3B, 3 Flute (MPN 31520308). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #6-32 UNC, H3 / 2B-3B, 3 Flute (MPN 31520308). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H3 / 2B-3B, 3 Flute (MPN 31540408). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H3 / 2B-3B, 3 Flute (MPN 31540408). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #2-56 UNC, H2 / 2B-3B, 3 Flute (MPN 31540108). Key specifications — attr1299996: H2 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #2-56 UNC, H2 / 2B-3B, 3 Flute (MPN 31540108). Key specifications — attr1299996: H2 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 7/16"-20 UNF, H4 / 2B-3B, 3 Flute (MPN 31540908). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 7/16"-20 UNF, H4 / 2B-3B, 3 Flute (MPN 31540908). Key specifications — attr1299996: H4 / 2B-3B.