EXW Singapore — collect or forward from our Singapore office.

3G Electric
OSG Thread-Forming STI Tap, 1"-8 UNC, H8 / 2B-3B, Modified Bottoming Chamfer - Thread-Forming STI Taps
OSGThread-Forming STI Taps

OSG Thread-Forming STI Tap, 1"-8 UNC, H8 / 2B-3B, Modified Bottoming Chamfer

The OSG Screw Thread Insert STI Tap is a thread-forming tap for 1"-8 UNC threads, with an H8 / 2B-3B tolerance and a modified bottoming chamfer. 3G Electric interprets this demand and sources the genuine OSG product…

SKU 3G-OTH-403860

Brand
OSG
Item
Thread-Forming STI Tap, 1"-8 UNC, H8 / 2B-3B, Modified Bottoming Chamfer
Part Number
1626005508
Category
Thread-Forming STI Taps
Available to Order
Also known as:1626005508OSG
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
1626005508
Type
H8 / 2B-3B, Modified Bottoming Chamfer
UNC
1"-8

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 thread-forming tap for 1"-8 UNC threads, with an H8 / 2B-3B tolerance and a modified bottoming chamfer. 3G Electric interprets this demand and sources the genuine OSG product (MPN 1626005508) across 14 industrial departments, with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

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

An OSG Screw Thread Insert STI Tap is used to form internal threads in pre-drilled holes for installing helical wire thread inserts. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or reinforce threads in aluminum, steel, and other materials.

What are the specifications of the OSG STI Tap 1626005508?

The OSG STI Tap 1626005508 is a thread-forming tap for 1"-8 UNC threads. It has an H8 / 2B-3B tolerance class and a modified bottoming chamfer. This tap is designed for use with screw thread inserts and is made by OSG.

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 location. Contact us for availability and lead time on this and other OSG cutting tools.

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

To select the correct OSG STI Tap, match the tap size and thread pitch to the insert you plan to install. For example, the 1626005508 is for 1"-8 UNC inserts. Ensure the tap tolerance (H8 / 2B-3B) aligns with your required thread class. Always use proper tapping fluid and follow OSG's recommended speeds.

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 thread-forming 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 →

More from OSG

View all OSG parts →
Thread-forming tap for creating internal threads in pre-drilled holes to accept helical wire thread inserts. Features a #4-48 UNF thread size, H2 / 2B-3B tolerance class, and modified bottoming chamfer. Used in general industrial machining for thread repair or reinforcement in metals
OSG
Thread-forming tap for creating internal threads in pre-drilled holes to accept helical wire thread inserts. Features a #4-48 UNF thread size, H2 / 2B-3B tolerance class, and modified bottoming chamfer. Used in general industrial machining for thread repair or reinforcement in metals

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first