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OSG Spiral-Flute STI Tap, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute - Spiral-Flute STI Taps for Steel & Stainless Steel
OSGSpiral-Flute STI Taps for Steel & Stainless Steel

OSG Spiral-Flute STI Tap, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute

OSG Spiral-Flute STI Taps for Steel & Stainless Steel.

SKU 3G-OTH-244371

Brand
OSG
Item
Spiral-Flute STI Tap, 5/16"-24 UNF, H3 / 2B-3B, 3 Flute
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
30201408

Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

OSG Spiral-Flute STI Taps for Steel & Stainless Steel.

Frequently Asked Questions

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

The OSG Screw Thread Insert STI Tap is used to cut internal threads in steel and stainless steel for installing screw thread inserts. Its spiral-flute design efficiently evacuates chips, making it ideal for blind-hole threading in industrial manufacturing and repair applications.

What are the specifications of the OSG STI Tap 30201408?

The OSG STI Tap has a thread size of 5/16"-24 UNF, a thread limit of H3 / 2B-3B, and 3 flutes. It is a spiral-flute tap designed for steel and stainless steel. The manufacturer part number is 30201408.

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 the OSG 30201408 tap.

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

Select an OSG STI Tap that matches the thread insert's size and class. For the 5/16"-24 UNF insert, use the OSG 30201408 tap with H3 / 2B-3B limits. Ensure the tap is designed for the workpiece material—this spiral-flute model suits steel and stainless steel.

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 steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
This spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. The spiral flute geometry aids chip evacuation, making it suitable for blind-hole threading. Thread size: 5/16"-24 UNF with H3 / 2B-3B tolerance, 3 flutes
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This spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. The spiral flute geometry aids chip evacuation, making it suitable for blind-hole threading. Thread size: 5/16"-24 UNF with H3 / 2B-3B tolerance, 3 flutes
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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Designed for blind-hole applications with upward chip evacuation. Thread size 3/8"-24 UNF, ground thread tolerance H3 / 2B-3B, 3 flutes. Manufacturer part number 30201801
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Thread size 3/8"-24 UNF, tolerance H3 / 2B-3B, 3 flutes. Spiral flute design aids chip evacuation in blind-hole applications
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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Thread size 3/8"-24 UNF, tolerance H3 / 2B-3B, 3 flutes. Spiral flute design aids chip evacuation in blind-hole applications
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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Features 3/8"-24 UNF thread size, H2 / 2B-3B tolerance, and 3 flutes for efficient chip evacuation. Suitable for applications requiring strong, wear-resistant threads in ferrous materials
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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Designed for blind-hole threading with chip evacuation upward. Thread size 3/8"-24 UNF, thread limit H2 / 2B-3B, 3 flutes
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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

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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Features 5/16"-18 UNC thread size, H4 / 2B-3B tolerance, and 3 flutes. Used in applications such as automotive, aerospace, and heavy equipment repair where stripped threads must be restored
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