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3G Electric
OSG 7017100 Spiral-Point STI Tap - Spiral-Point STI Taps
OSGSpiral-Point STI Taps

OSG 7017100 Spiral-Point STI Tap

The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes to accept screw thread inserts. This 3/8"-16 UNC tap features an H3 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 7017100).

SKU 3G-OTH-287038

Brand
OSG
Item
7017100 Spiral-Point STI Tap
Part Number
7017100
Category
Spiral-Point STI Taps
Available to Order
Also known as:7017100OSG
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
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Technical Specifications

OSG
Manufacturer Part Number
7017100
Type
H3 / 2B-3B, Plug Chamfer
Flute
3
UNC
3/8"-16

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

Product Description

The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading holes to accept screw thread inserts. This 3/8"-16 UNC tap features an H3 / 2B-3B tolerance with a plug chamfer and 3 flutes (MPN 7017100).

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 a pre-drilled hole before installing a helical wire thread insert. It is commonly applied in automotive, aerospace, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.

What are the specifications of the OSG 7017100 STI Tap?

The OSG 7017100 is a spiral-point STI tap with a 3/8"-16 UNC thread, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for through-hole threading and produces threads that accept standard screw thread inserts. The spiral-point design pushes chips forward for efficient cutting.

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 7017100 or other OSG taps.

How to select the correct OSG STI Tap for a thread insert?

Select an OSG STI Tap that matches the thread size and pitch of the insert, such as 3/8"-16 UNC. Ensure the tap tolerance (e.g., H3 / 2B-3B) aligns with the required class of fit. Use a plug chamfer for through holes and a spiral-point design for chip evacuation. Always follow the insert manufacturer's drill size recommendations.

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. 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-point STI tap is designed for cutting internal threads in through holes prior to installing helical coil thread inserts. It features a 1"-8 UNC thread, H6 tolerance, plug chamfer, 4 flutes, and is made from high-speed steel. Typical applications include thread repair and reinforcement in metal components
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This spiral-point STI tap is designed for cutting internal threads in through holes prior to installing helical coil thread inserts. It features a 1"-8 UNC thread, H6 tolerance, plug chamfer, 4 flutes, and is made from high-speed steel. Typical applications include thread repair and reinforcement in metal components

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