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OSG 30101101 Spiral-Point STI Tap for Steel & Stainless Steel - Spiral-Point STI Taps for Steel & Stainless Steel
OSGSpiral-Point STI Taps for Steel & Stainless Steel

OSG 30101101 Spiral-Point STI Tap for Steel & Stainless Steel

The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 30101101, MPN 30101101) is a spiral-point STI tap for steel and stainless steel, with a 5/16"-18 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug…

SKU 3G-OTH-265402

Brand
OSG
Item
30101101 Spiral-Point STI Tap for Steel & Stainless Steel
Part Number
30101101
Category
Spiral-Point STI Taps for Steel & Stainless Steel
Available to Order
Also known as:30101101OSG
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Technical Specifications

OSG
Manufacturer Part Number
30101101
Type
H4 / 2B-3B, Plug Chamfer
Flute
3
UNC
5/16"-18

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

Product Description

The OSG Screw Thread Insert STI Tap: Spiral Point (SKU 30101101, MPN 30101101) is a spiral-point STI tap for steel and stainless steel, with a 5/16"-18 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G Electric interprets this demand and sources the genuine OSG tap, backed by our specialist expertise in combustion, pumps, and controls 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 is used to cut internal threads in steel and stainless steel for installing screw thread inserts. It is commonly applied in aerospace, automotive, and industrial maintenance to repair or reinforce threaded holes without replacing the parent material.

What are the specifications of the OSG 30101101 STI Tap?

The OSG 30101101 STI Tap has a spiral-point design, 5/16"-18 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for tapping steel and stainless steel to accept screw thread inserts. The H4 tolerance ensures precise thread fit for insert installation.

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 30101101 STI Tap.

How to select the correct OSG STI Tap for thread inserts?

To select the correct OSG STI Tap, match the tap thread size and pitch to the insert's internal thread requirement. For steel and stainless steel, choose a spiral-point design with H4 tolerance for accurate thread class. Verify the chamfer type (plug) and flute count for your material and depth.

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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