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3G Electric
OSG 30100808 Spiral-Point STI Tap - Spiral-Point STI Taps for Steel & Stainless Steel
OSGSpiral-Point STI Taps for Steel & Stainless Steel

OSG 30100808 Spiral-Point STI Tap

The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 30100808, MPN 30100808) is a spiral-point STI tap for steel and stainless steel, sized 1/4"-20 UNC with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G…

SKU 3G-OTH-265361

Brand
OSG
Item
30100808 Spiral-Point STI Tap
Part Number
30100808
Category
Spiral-Point STI Taps for Steel & Stainless Steel
Available to Order
Also known as:30100808OSG
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

OSG
Manufacturer Part Number
30100808
Type
H3 / 2B-3B, Plug Chamfer
Flute
3
UNC
1/4"-20

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

Product Description

The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 30100808, MPN 30100808) is a spiral-point STI tap for steel and stainless steel, sized 1/4"-20 UNC with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G Electric interprets your demand for this precision threading tool, sources it from OSG, and supports your application with specialist expertise across 14 industrial departments.

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 aerospace, automotive, and industrial maintenance applications where stripped threads must be repaired or reinforced.

What are the specifications of the OSG 30100808 STI Tap?

The OSG 30100808 is a spiral-point STI tap with 1/4"-20 UNC thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for threading holes that will receive screw thread inserts in steel and stainless steel workpieces.

Where to buy OSG STI Taps worldwide?

3G Electric supplies OSG STI Taps like the 30100808 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this spiral-point tap for steel and stainless steel applications.

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

Select an STI tap that matches the original thread size and pitch, such as 1/4"-20 UNC. The tap tolerance (e.g., H3 / 2B-3B) must align with the insert manufacturer's specifications. Always use a plug chamfer for through-hole repairs and verify the tap is rated for the workpiece material.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG Products

3G Electric supplies OSG spiral-point 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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