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: Spiral Fute, #8-32 UNC, H3 / 2B-3B, 3 Flute - Spiral-Flute STI Taps
OSGSpiral-Flute STI Taps

OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H3 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap is a spiral-flute tap designed for #8-32 UNC threads, featuring a bottoming chamfer and 3 flutes. It is manufactured to H3 / 2B-3B tolerance class (MPN 8007200). 3G Electric…

SKU 3G-OTH-273399

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H3 / 2B-3B, 3 Flute
Category
Spiral-Flute 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
8007200
Type
#8-32 UNC, H3 / 2B-3B, Bottoming Chamfer
Flute
3
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 is a spiral-flute tap designed for #8-32 UNC threads, featuring a bottoming chamfer and 3 flutes. It is manufactured to H3 / 2B-3B tolerance class (MPN 8007200). 3G Electric sources this genuine OSG tool as part of our industrial supply across 14 departments, with specialist expertise in cutting tools and precision threading.

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 pre-drilled hole 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 #8-32 UNC?

The OSG STI Tap (MPN 8007200) is a spiral-flute tap for #8-32 UNC threads with a bottoming chamfer. It has 3 flutes and a thread class of H3 / 2B-3B. The spiral flute design helps evacuate chips upward, making it suitable for blind-hole thread insert applications.

Where to buy OSG STI Taps worldwide?

You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the OSG 8007200 or other thread insert tap sizes.

How to select the correct OSG STI Tap for a thread insert?

Select an OSG STI Tap that matches the thread insert size and class. For a #8-32 UNC insert, use a tap with H3 / 2B-3B tolerance and a bottoming chamfer for blind holes. The spiral-flute design is ideal for chip evacuation. Always verify the tap drill size per OSG recommendations.

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. 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, #6-32 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8005700). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #6-32 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8005700). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #4-40 UNC, H2 / 2B-3B, 2 Flute, Bottoming Chamfer (MPN 8003600). Key specifications — attr1299996: H2 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #4-40 UNC, H2 / 2B-3B, 2 Flute, Bottoming Chamfer (MPN 8003600). Key specifications — attr1299996: H2 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-32 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8009000). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-32 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8009000). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8006900). Key specifications — attr1299996: H2 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #8-32 UNC, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8006900). Key specifications — attr1299996: H2 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8012100). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8012100). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-24 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8008100). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-24 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8008100). Key specifications — attr1299996: H3 / 2B-3B.

More from OSG

View all OSG parts
OSG Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10801300). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10801300). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-32 UNF, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8008700). Key specifications — attr1299996: H2 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, #10-32 UNF, H2 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 8008700). Key specifications — attr1299996: H2 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 7/8"-14 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10802300). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 7/8"-14 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10802300). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10800900). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-12 UNC, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10800900). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-12 UNC, H3 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10800800). Key specifications — attr1299996: H3 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 9/16"-12 UNC, H3 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10800800). Key specifications — attr1299996: H3 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, M2x0.4 Metric, D2 / 2B-3B, 2 Flute, High Speed Steel (MPN 10900100). Key specifications — attr1299996: D2 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, M2x0.4 Metric, D2 / 2B-3B, 2 Flute, High Speed Steel (MPN 10900100). Key specifications — attr1299996: D2 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, 3/4"-16 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10801900). Key specifications — attr1299996: H4 / 2B-3B.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, 3/4"-16 UNF, H4 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 10801900). Key specifications — attr1299996: H4 / 2B-3B.
OSG Screw Thread Insert STI Tap: Spiral Fute, M14x2 Metric, D5 / 4H-6H, 4 Flute, High Speed Steel (MPN 10901000). Key specifications — attr1299996: D5 / 4H-6H.
OSG
OSG Screw Thread Insert STI Tap: Spiral Fute, M14x2 Metric, D5 / 4H-6H, 4 Flute, High Speed Steel (MPN 10901000). Key specifications — attr1299996: D5 / 4H-6H.