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OSG Spiral-Flute STI Tap, 1/4"-20 UNC, H2 / 2B-3B, 3 Flute - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

OSG Spiral-Flute STI Tap, 1/4"-20 UNC, H2 / 2B-3B, 3 Flute

OSG Spiral-Flute STI Taps for Multiple Materials.

SKU 3G-OTH-281089

Brand
OSG
Item
Spiral-Flute STI Tap, 1/4"-20 UNC, H2 / 2B-3B, 3 Flute
Category
Spiral-Flute STI Taps for Multiple Materials
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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
31500708

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 an OSG Screw Thread Insert STI Tap used for?

An OSG Screw Thread Insert STI Tap is used to cut internal threads in multiple materials for installing helical wire thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing to repair or reinforce threaded holes in aluminum, steel, and cast iron.

What are the specifications of the OSG STI Tap 31500708?

The OSG STI Tap 31500708 is a spiral-flute tap with a 1/4"-20 UNC thread size, H2 / 2B-3B tolerance, and 3 flutes. It is designed for tapping holes that will accept screw thread inserts in multiple materials. The manufacturer part number is 31500708.

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 31500708 spiral-flute tap.

How to select the correct OSG STI Tap size?

To select the correct OSG STI Tap, match the tap thread size to the insert's internal thread requirement. For example, a 1/4"-20 UNC tap is used for inserts requiring that thread. Ensure the tap tolerance (H2 / 2B-3B) aligns with your desired class of fit for the finished thread.

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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Cross-referenced by specification & description
Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Thread size 1/4"-20 UNC with 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 in multiple materials to accept screw thread inserts. Thread size 1/4"-20 UNC with H2 / 2B-3B tolerance and 3 flutes. Used in applications requiring thread repair or reinforcement
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This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance class, and 3 flutes. Typical applications include threading in aluminum, steel, and cast iron for repair or reinforcement of tapped holes
This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. With a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes, it is suitable for thread repair or reinforcement applications in general manufacturing
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This spiral-flute STI tap is designed for cutting internal threads in multiple materials to accept screw thread inserts. With a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes, it is suitable for thread repair or reinforcement applications in general manufacturing
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Spiral-flute STI tap for cutting internal threads in multiple materials to accept screw thread inserts. Features a 1/2"-13 UNC thread size, H3 / 2B-3B tolerance, and 3 flutes. Suitable for applications requiring strong threads in softer base materials
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)
This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 1/2"-13 UNC thread size, H4 / 2B-3B tolerance, and 3 flutes. Suitable for applications requiring thread repair or reinforcement in materials such as aluminum, steel, and cast iron
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This spiral-flute STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 1/2"-13 UNC thread size, H4 / 2B-3B tolerance, and 3 flutes. Suitable for applications requiring thread repair or reinforcement in materials such as aluminum, steel, and cast iron

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