EXW Singapore — collect or forward from our Singapore office.

3G Electric
OSG 0146608 Spiral-Flute STI Tap for Steel & Stainless Steel - Spiral-Flute STI Taps for Steel & Stainless Steel
OSGSpiral-Flute STI Taps for Steel & Stainless Steel

OSG 0146608 Spiral-Flute STI Tap for Steel & Stainless Steel

The OSG Screw Thread Insert STI Tap (MPN 0146608) is a spiral-flute tap designed for steel and stainless steel. It features a 5/16"-24 UNF thread size, H2 / 2B-3B tolerance, a bottoming chamfer, and 3 flutes.

SKU 3G-OTH-244358

Brand
OSG
Item
0146608 Spiral-Flute STI Tap for Steel & Stainless Steel
Part Number
0146608
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
Available to Order
Also known as:0146608OSG
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
0146608
Type
H2 / 2B-3B, Bottoming Chamfer
Flute
3
UNF
5/16"-24

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 (MPN 0146608) is a spiral-flute tap designed for steel and stainless steel. It features a 5/16"-24 UNF thread size, H2 / 2B-3B tolerance, a bottoming chamfer, and 3 flutes.

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 steel and stainless steel for installing helical wire thread inserts. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or reinforce stripped threads without replacing the parent component.

What are the specifications of the OSG 0146608 STI Tap?

The OSG 0146608 is a spiral-flute STI tap with a 5/16"-24 UNF thread, H2 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is designed for threading holes in steel and stainless steel to accept screw thread inserts, ensuring precise fit and thread strength.

Where to buy OSG STI Taps for worldwide delivery?

3G Electric supplies OSG STI Taps like the 0146608 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we source genuine OSG tooling to meet your threading requirements.

How to select the correct STI tap size for a repair job?

Select an STI tap that matches the thread size and pitch of the insert you plan to install. For the OSG 0146608, use a 5/16"-24 UNF insert. Ensure the tap has the correct chamfer (bottoming for blind holes) and flute style (spiral for chip evacuation in steel). Always verify the material hardness to avoid tap breakage.

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-flute sti taps for steel & stainless steel. 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-flute STI tap for threading holes to accept screw thread inserts in steel and stainless steel. UNF 1/4"-28, H2 / 2B-3B tolerance, bottoming chamfer, 3 flutes. Suitable for repair and reinforcement of tapped holes
OSG
Spiral-flute STI tap for threading holes to accept screw thread inserts in steel and stainless steel. UNF 1/4"-28, H2 / 2B-3B tolerance, bottoming chamfer, 3 flutes. Suitable for repair and reinforcement of tapped holes
Spiral-flute STI tap for threading holes in steel and stainless steel to accept screw thread inserts. UNF 9/16"-18 thread size, H4 / 2B-3B tolerance, bottoming chamfer, 4 flutes. Suitable for blind hole applications requiring threads close to the hole bottom
OSG
Spiral-flute STI tap for threading holes in steel and stainless steel to accept screw thread inserts. UNF 9/16"-18 thread size, H4 / 2B-3B tolerance, bottoming chamfer, 4 flutes. Suitable for blind hole applications requiring threads close to the hole bottom
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Designed for through-hole applications, the spiral flute geometry evacuates chips upward. Thread size 7/8"-14 UNF, tolerance H3 / 2B-3B, 4 flutes
OSG
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Designed for through-hole applications, the spiral flute geometry evacuates chips upward. Thread size 7/8"-14 UNF, tolerance H3 / 2B-3B, 4 flutes
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Thread size 7/8"-14 UNF with H3 / 2B-3B tolerance and 4 flutes. Spiral flute design aids chip evacuation in blind-hole applications. Used in maintenance and repair of threaded holes requiring thread inserts
OSG
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Thread size 7/8"-14 UNF with H3 / 2B-3B tolerance and 4 flutes. Spiral flute design aids chip evacuation in blind-hole applications. Used in maintenance and repair of threaded holes requiring thread inserts
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Thread size 5/16"-18 UNC with tolerance class H3 / 2B-3B, 3 flutes. Suitable for applications requiring thread repair or reinforcement in demanding materials
OSG
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Thread size 5/16"-18 UNC with tolerance class H3 / 2B-3B, 3 flutes. Suitable for applications requiring thread repair or reinforcement in demanding materials
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Thread size 3/8"-16 UNC, 3 flutes, tolerance class H4 / 2B-3B. Suitable for repair or reinforcement of threaded holes in demanding materials
OSG
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Thread size 3/8"-16 UNC, 3 flutes, tolerance class H4 / 2B-3B. Suitable for repair or reinforcement of threaded holes in demanding materials
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. UNC 3/4"-10 thread size, H3 / 2B-3B tolerance, bottoming chamfer, 4 flutes. Suitable for thread repair and reinforcement in demanding applications
OSG
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. UNC 3/4"-10 thread size, H3 / 2B-3B tolerance, bottoming chamfer, 4 flutes. Suitable for thread repair and reinforcement in demanding applications
This spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel prior to installing screw thread inserts. It features a 7/8"-9 UNC thread size, H3 / 2B-3B tolerance, bottoming chamfer, and 4 flutes. Suitable for thread repair or insert installation in ferrous materials
OSG
This spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel prior to installing screw thread inserts. It features a 7/8"-9 UNC thread size, H3 / 2B-3B tolerance, bottoming chamfer, and 4 flutes. Suitable for thread repair or insert installation in ferrous materials

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first