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OSG 30204101 Spiral-Flute STI Tap, 5/8"-18 UNF, H3 / 2B-3B, 4 Flute - Spiral-Flute STI Taps for Steel & Stainless Steel
OSGSpiral-Flute STI Taps for Steel & Stainless Steel

OSG 30204101 Spiral-Flute STI Tap, 5/8"-18 UNF, H3 / 2B-3B, 4 Flute

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

SKU 3G-OTH-244216

Brand
OSG
Item
30204101 Spiral-Flute STI Tap, 5/8"-18 UNF, H3 / 2B-3B, 4 Flute
Category
Spiral-Flute STI Taps for Steel & Stainless Steel
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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
30204101

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 to accept helical wire thread inserts. It is commonly used in automotive, aerospace, and general manufacturing to repair or reinforce threaded holes in demanding applications.

What are the specifications of the OSG 30204101 STI Tap?

The OSG 30204101 is a spiral-flute STI tap with a 5/8"-18 UNF thread, H3 / 2B-3B tolerance, and 4 flutes. It is designed for threading steel and stainless steel before installing screw thread inserts. The spiral flute design aids chip evacuation.

Where to buy OSG STI Taps in worldwide?

3G Electric supplies and delivers OSG STI Taps worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility, regardless of location. Contact us for availability and lead time.

How to select the correct STI tap size for a thread insert?

Select an STI tap that matches the thread insert's nominal size and pitch, such as 5/8"-18 UNF. The tap tolerance (e.g., H3 / 2B-3B) must align with the insert manufacturer's recommendation. Always verify the drill size for the STI tap before threading.

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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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Features a 5/8"-18 UNF thread, H3 / 2B-3B tolerance, and 4 flutes. The 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 helical wire thread inserts. Features a 5/8"-18 UNF thread, H3 / 2B-3B tolerance, and 4 flutes. The spiral flute design aids chip evacuation in blind-hole applications
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This spiral-flute STI tap from OSG is designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. The spiral-flute geometry efficiently evacuates chips upward, making it suitable for blind-hole applications. With a 5/8"-18 UNF thread size and H4 tolerance, it produces threads that meet 2B-3B class fit for STI inserts
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This spiral-flute STI tap from OSG is designed for cutting internal threads in steel and stainless steel to accept screw thread inserts. The spiral-flute geometry efficiently evacuates chips upward, making it suitable for blind-hole applications. With a 5/8"-18 UNF thread size and H4 tolerance, it produces threads that meet 2B-3B class fit for STI inserts
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Thread size 3/4"-16 UNF, thread tolerance H3 / 2B-3B, 4-flute design. Used to create threads for helical coil inserts, providing stronger threads in softer base materials
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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept screw thread inserts. Thread size 3/4"-16 UNF, thread tolerance H3 / 2B-3B, 4-flute design. Used to create threads for helical coil inserts, providing stronger threads in softer base materials
Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. Thread size 1/2"-20 UNF, tolerance H3 / 2B-3B, with 4 flutes. 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. Thread size 1/2"-20 UNF, tolerance H3 / 2B-3B, with 4 flutes. Used for thread repair or reinforcement in applications such as aerospace, automotive, and industrial maintenance
Spiral-flute STI tap designed for cutting internal threads in steel and stainless steel for screw thread inserts. Features 4 flutes and thread tolerance H3 / 2B-3B. Used in applications requiring strong threads in hard materials
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Spiral-flute STI tap designed for cutting internal threads in steel and stainless steel for screw thread inserts. Features 4 flutes and thread tolerance H3 / 2B-3B. Used in applications requiring strong threads in hard 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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Spiral-flute STI tap for cutting internal threads in steel and stainless steel to accept helical wire thread inserts. #8-32 UNC, H2 / 2B-3B tolerance, bottoming chamfer, 3 flutes. Manufacturer part number 0145208
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