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OSG Screw Thread Insert STI Tap: Spiral Point, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute - Spiral-Point STI Taps for Multiple Materials
OSGSpiral-Point STI Taps for Multiple Materials

OSG Screw Thread Insert STI Tap: Spiral Point, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute

The OSG Screw Thread Insert STI Tap: Spiral Point (MPN 31402908) is a 5/8"-11 UNC, H4 / 2B-3B, 4-flute, plug-chamfer tap designed for threading holes to accept screw thread inserts. 3G Electric interprets your demand…

SKU 3G-OTH-284724

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, 5/8"-11 UNC, H4 / 2B-3B, 4 Flute
Category
Spiral-Point STI Taps for Multiple Materials
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
31402908
Type
H4 / 2B-3B, Plug Chamfer
Flute
4
UNC
5/8"-11

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

Product Description

The OSG Screw Thread Insert STI Tap: Spiral Point (MPN 31402908) is a 5/8"-11 UNC, H4 / 2B-3B, 4-flute, plug-chamfer tap designed for threading holes to accept screw thread inserts. 3G Electric interprets your demand for this specific OSG tap, sources it across 14 industrial departments, and supports with specialist depth in cutting tools and controls.

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 multiple materials to accept helical wire thread inserts. It is commonly used in aerospace, automotive, and general manufacturing to repair or reinforce tapped holes in aluminum, steel, and cast iron.

What are the specifications of the OSG STI Tap 5/8"-11 UNC?

This OSG spiral-point STI tap has a 5/8"-11 UNC thread, H4 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is designed for through-hole tapping in multiple materials. The manufacturer part number is 31402908.

Where to buy OSG STI Tap 5/8"-11 UNC worldwide?

3G Electric supplies and delivers the OSG STI Tap 5/8"-11 UNC (MPN 31402908) worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this precision threading tool.

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

Select an STI tap that matches the thread insert's nominal size and pitch, such as 5/8"-11 UNC. The tap tolerance (e.g., H4 / 2B-3B) must align with the insert's internal thread class. Always verify the manufacturer's recommendation for material and hole type.

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-point 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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