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OSG Spiral-Flute STI Tap, 3/8"-24 UNF, H2 / 2B-3B, 3 Flute - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Spiral-Flute STI Tap, 3/8"-24 UNF, H2 / 2B-3B, 3 Flute

OSG Spiral-Flute STI Taps for Multiple Materials.

SKU 3G-OTH-281128

Brand
OSG
Item
Spiral-Flute STI Tap, 3/8"-24 UNF, H2 / 2B-3B, 3 Flute
Category
Spiral-Flute STI Taps for Multiple Materials
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
31501408

Technical Documents

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

Product Description

OSG Spiral-Flute STI Taps for Multiple Materials.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

This OSG spiral-flute STI tap is designed for cutting internal threads in multiple materials before installing screw thread inserts. It is commonly used in aerospace, automotive, and general manufacturing applications where reliable thread reinforcement is required.

What are the specifications of the OSG 31501408 STI Tap?

The OSG 31501408 is a spiral-flute STI tap with a 3/8"-24 UNF thread size, H2 / 2B-3B tolerance, and 3 flutes. It is designed for multiple materials and is manufactured under part number 31501408. This tap is suitable for pre-tapping holes for helical thread inserts.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 31501408 spiral-flute STI tap.

How to select the correct OSG STI tap for thread inserts?

Select an OSG STI tap based on the thread size and tolerance required for your insert. For a 3/8"-24 UNF insert, use the OSG 31501408 with H2 / 2B-3B tolerance. Ensure the tap matches the insert manufacturer's specifications for proper thread engagement and fit.

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 spiral-flute STI tap is designed for cutting internal threads in multiple materials prior to installing helical wire thread inserts. It features a 3/8"-24 UNF thread size, H3 / 2B-3B tolerance, and a 3-flute design for efficient chip evacuation. Suitable for use in metals and plastics where thread repair or reinforcement is needed
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This spiral-flute STI tap is designed for cutting internal threads in multiple materials prior to installing helical wire thread inserts. It features a 3/8"-24 UNF thread size, H3 / 2B-3B tolerance, and a 3-flute design for efficient chip evacuation. Suitable for use in metals and plastics where thread repair or reinforcement is needed
This spiral-flute STI tap is designed for cutting internal threads in multiple materials prior to installing helical wire thread inserts. With a 3/8"-24 UNF thread size and H3 / 2B-3B tolerance, it provides precise thread fit. The 3-flute spiral flute design aids chip evacuation. Commonly used in applications such as aerospace, automotive, and general manufacturing for threading aluminum, steel, and cast iron
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This spiral-flute STI tap is designed for cutting internal threads in multiple materials prior to installing helical wire thread inserts. With a 3/8"-24 UNF thread size and H3 / 2B-3B tolerance, it provides precise thread fit. The 3-flute spiral flute design aids chip evacuation. Commonly used in applications such as aerospace, automotive, and general manufacturing for threading aluminum, steel, and cast iron
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. The 5/16"-24 UNF thread size with H2 / 2B-3B tolerance and 3-flute spiral flute geometry facilitates chip evacuation in blind-hole applications. Suitable for use in general manufacturing where replaceable threads are needed
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This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. The 5/16"-24 UNF thread size with H2 / 2B-3B tolerance and 3-flute spiral flute geometry facilitates chip evacuation in blind-hole applications. Suitable for use in general manufacturing where replaceable threads are needed
OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H2 / 2B-3B, 3 Flute (MPN 31501108)
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OSG Screw Thread Insert STI Tap: Spiral Fute, 5/16"-24 UNF, H2 / 2B-3B, 3 Flute (MPN 31501108)
OSG Screw Thread Insert STI Tap: Spiral Fute, 1/2"-20 UNF, H3 / 2B-3B, 3 Flute (MPN 31502201)
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OSG Screw Thread Insert STI Tap: Spiral Fute, 1/2"-20 UNF, H3 / 2B-3B, 3 Flute (MPN 31502201)
Spiral-flute tap for cutting internal threads in multiple materials to accept helical wire thread inserts. Features 1/4"-20 UNC thread size, H2 / 2B-3B tolerance, and 3 flutes. Suitable for applications requiring thread repair or reinforcement in aluminum, steel, and cast iron
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Spiral-flute tap for cutting internal threads in multiple materials to accept helical wire thread inserts. Features 1/4"-20 UNC thread size, H2 / 2B-3B tolerance, and 3 flutes. Suitable for applications requiring thread repair or reinforcement in aluminum, steel, and cast iron

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OSG Screw Thread Insert STI Tap: Spiral Fute, M10x1.5 Metric, D4 / 4H-6H, 3 Flute (MPN 34500801)
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Spiral-flute STI tap for cutting internal threads to accept helical wire thread inserts. Designed for multiple materials including aluminum, steel, and cast iron. Features 3/8"-24 UNF thread, H2 / 2B-3B tolerance, and 3 flutes. Used in applications requiring thread repair or reinforcement
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Spiral-flute STI tap for cutting internal threads to accept helical wire thread inserts. Designed for multiple materials including aluminum, steel, and cast iron. Features 3/8"-24 UNF thread, H2 / 2B-3B tolerance, and 3 flutes. Used in applications requiring thread repair or reinforcement
This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a M6x1 metric thread size, D3 / 4H-6H tolerance class, and 3 flutes. Used in general manufacturing for repairing or reinforcing tapped holes
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This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a M6x1 metric thread size, D3 / 4H-6H tolerance class, and 3 flutes. Used in general manufacturing for repairing or reinforcing tapped holes
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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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
This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 7/16"-20 UNF thread, H4 / 2B-3B tolerance, and 3 flutes. Suitable for use in aerospace, automotive, and general manufacturing applications
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This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 7/16"-20 UNF thread, H4 / 2B-3B tolerance, and 3 flutes. Suitable for use in aerospace, automotive, and general manufacturing applications
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept helical wire thread inserts. Thread size 9/16"-12 UNC with ground thread tolerance H3 / 2B-3B and 4 flutes. Suitable for tapping holes in applications requiring thread reinforcement or repair