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OSG Spiral-Flute STI Tap, 3/4"-10 UNC, H5 Tolerance, 4 Flutes - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Spiral-Flute STI Tap, 3/4"-10 UNC, H5 Tolerance, 4 Flutes

OSG Spiral-Flute STI Taps for Multiple Materials.

SKU 3G-OTH-281117

Brand
OSG
Item
Spiral-Flute STI Tap, 3/4"-10 UNC, H5 Tolerance, 4 Flutes
Category
Spiral-Flute STI Taps for Multiple Materials
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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
31503308

Technical Documents

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

Product Description

OSG Spiral-Flute STI Taps for Multiple Materials.

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 multiple materials for installing screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, replaceable threads are required in softer metals or plastics.

What are the specifications of the OSG Screw Thread Insert STI Tap?

This OSG tap has a 3/4"-10 UNC thread size, H5 tolerance for 2B-3B class fit, and a spiral-flute design with 4 flutes. The manufacturer part number is 31503308. It is designed for threading multiple materials including steel, aluminum, and cast iron.

Where to buy the OSG Screw Thread Insert STI Tap worldwide?

You can source the OSG Screw Thread Insert STI Tap 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.

How to select the correct OSG STI tap for my application?

To select the correct OSG STI tap, match the thread size and pitch to your insert requirements. For this 3/4"-10 UNC tap, ensure your material is suitable for spiral-flute taps, which excel in chip evacuation. Consult OSG's technical data for optimal speeds and feeds.

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This OSG spiral-flute STI tap is designed for cutting internal threads in multiple materials to accommodate screw thread inserts. It features a 3/4"-10 UNC thread size, H5 tolerance for 2B-3B class fit, and a 4-flute spiral flute design. Suitable for thread repair or reinforcement applications in general manufacturing
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This OSG spiral-flute STI tap is designed for cutting internal threads in multiple materials to accommodate screw thread inserts. It features a 3/4"-10 UNC thread size, H5 tolerance for 2B-3B class fit, and a 4-flute spiral flute design. Suitable for thread repair or reinforcement applications in general manufacturing
Spiral-flute STI tap for cutting internal threads in multiple materials to accept helical coil inserts. Thread size 7/8"-9 UNC with H5 tolerance for 2B/3B class fit. Four-flute design suitable for through-hole threading in general machining applications
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept helical coil inserts. Thread size 7/8"-9 UNC with H5 tolerance for 2B/3B class fit. Four-flute design suitable for through-hole threading in general machining applications
Spiral-flute STI tap for cutting internal threads for helical coil thread inserts in multiple materials. Size 7/8"-9 UNC with H5 tolerance for 2B-3B thread classes. Features 4 flutes. Suitable for applications requiring strong threads in metals and alloys
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Spiral-flute STI tap for cutting internal threads for helical coil thread inserts in multiple materials. Size 7/8"-9 UNC with H5 tolerance for 2B-3B thread classes. Features 4 flutes. Suitable for applications requiring strong threads in metals and alloys
This spiral-flute STI tap is designed for cutting internal threads in multiple materials prior to installing screw thread inserts. It features a 3/4"-10 UNC thread size, H3 / 2B-3B tolerance, and 4 flutes. Suitable for general manufacturing applications requiring strong, replaceable threads
OSG
This spiral-flute STI tap is designed for cutting internal threads in multiple materials prior to installing screw thread inserts. It features a 3/4"-10 UNC thread size, H3 / 2B-3B tolerance, and 4 flutes. Suitable for general manufacturing applications requiring strong, replaceable threads
This spiral-flute STI tap cuts internal threads to accept helical wire thread inserts. It is suited for blind-hole applications where chip evacuation is required. The tap has a 3/4"-10 UNC thread size, H3 / 2B-3B tolerance, and 4 flutes
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This spiral-flute STI tap cuts internal threads to accept helical wire thread inserts. It is suited for blind-hole applications where chip evacuation is required. The tap has a 3/4"-10 UNC thread size, H3 / 2B-3B tolerance, and 4 flutes
Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1"-8 UNC thread size, H4 / 2B-3B tolerance, and 4-flute design. Suitable for general manufacturing, automotive, and aerospace applications requiring thread repair or reinforcement
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1"-8 UNC thread size, H4 / 2B-3B tolerance, and 4-flute design. Suitable for general manufacturing, automotive, and aerospace applications requiring thread repair or reinforcement

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Spiral-flute STI tap for cutting internal threads in multiple materials to accept helical wire thread inserts. Features #10-32 UNF thread size, H2 / 2B-3B tolerance, and 3-flute design. Suitable for applications requiring thread repair or reinforcement in aluminum, steel, and cast iron
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