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OSG Spiral-Flute STI Tap, 7/16"-14 UNC, H4 / 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, 7/16"-14 UNC, H4 / 2B-3B, 3 Flute

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

SKU 3G-OTH-244416

Brand
OSG
Item
Spiral-Flute STI Tap, 7/16"-14 UNC, H4 / 2B-3B, 3 Flute
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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Technical specs
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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
30202101

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.

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 cuts internal threads in steel and stainless steel for installing helical wire thread inserts. It is commonly used in aerospace, automotive, and heavy equipment repair where stripped threads must be restored with a stronger, wear-resistant insert.

What are the specifications of the OSG STI Tap 30202101?

The OSG STI Tap 30202101 is a spiral-flute tap with thread size 7/16"-14 UNC, tolerance H4 / 2B-3B, and 3 flutes. It is designed for tapping holes that will accept screw thread inserts in steel and stainless steel. The spiral flute design aids chip evacuation in blind holes.

Where to buy OSG STI Tap 30202101 worldwide?

3G Electric supplies the OSG STI Tap 30202101 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine OSG taps and support your procurement with technical guidance on thread insert tapping.

How to select the correct STI tap for thread inserts?

Select an STI tap that matches the thread insert's size and class. For 7/16"-14 UNC inserts, use a tap with H4 tolerance for 2B-3B fit. OSG spiral-flute taps are ideal for steel and stainless steel blind holes. Always verify the tap's pitch and thread limit against the insert manufacturer's specifications.

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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This spiral-flute STI tap cuts internal threads in steel and stainless steel for installing helical wire thread inserts. It features a 7/16"-14 UNC thread size, H4 / 2B-3B tolerance, and 3 flutes. Commonly used in automotive, aerospace, and industrial maintenance to repair or reinforce stripped threads
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This spiral-flute STI tap cuts internal threads in steel and stainless steel for installing helical wire thread inserts. It features a 7/16"-14 UNC thread size, H4 / 2B-3B tolerance, and 3 flutes. Commonly used in automotive, aerospace, and industrial maintenance to repair or reinforce stripped threads
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Sized 7/16"-14 UNC with H3 / 2B-3B thread tolerance, 3 flutes, designed for through-hole threading. Used for thread repair or reinforcement in applications such as aerospace, automotive, and industrial maintenance
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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Sized 7/16"-14 UNC with H3 / 2B-3B thread tolerance, 3 flutes, designed for through-hole threading. Used for thread repair or reinforcement in applications such as aerospace, automotive, and industrial maintenance
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Designed for blind-hole applications, the spiral flute directs chips upward. Thread size 5/16"-18 UNC, 3 flutes, thread class H4 / 2B-3B
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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 applications, the spiral flute directs chips upward. Thread size 5/16"-18 UNC, 3 flutes, thread class H4 / 2B-3B
This spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. With a 7/16"-14 UNC thread size, H3 / 2B-3B tolerance, and 3-flute design, it is suitable for applications requiring thread repair or reinforcement in demanding materials
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This spiral-flute STI tap is designed for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. With a 7/16"-14 UNC thread size, H3 / 2B-3B tolerance, and 3-flute design, it is suitable for applications requiring thread repair or reinforcement in demanding materials
Spiral-flute STI tap for cutting internal threads in steel and stainless steel prior to installing screw thread inserts. Features a 7/16"-20 UNF thread size, H4 / 2B-3B tolerance, and 3-flute design for efficient chip evacuation. Suitable for applications requiring strong threads in materials that may not hold direct threads
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Spiral-flute STI tap for cutting internal threads in steel and stainless steel prior to installing screw thread inserts. Features a 7/16"-20 UNF thread size, H4 / 2B-3B tolerance, and 3-flute design for efficient chip evacuation. Suitable for applications requiring strong threads in materials that may not hold direct threads
Spiral-flute STI tap designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. Features 3/8"-16 UNC thread size, H4 / 2B-3B tolerance, and 3 spiral flutes for efficient chip evacuation. Commonly used in applications requiring strong, wear-resistant threads in softer base materials
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Spiral-flute STI tap designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. Features 3/8"-16 UNC thread size, H4 / 2B-3B tolerance, and 3 spiral flutes for efficient chip evacuation. Commonly used in applications requiring strong, wear-resistant threads in softer base materials

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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 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. 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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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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