We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

OSG Screw Thread Insert STI Tap: Spiral Point, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute - Spiral-Point STI Taps for Steel & Stainless Steel
OSGSpiral-Point STI Taps for Steel & Stainless Steel

OSG Screw Thread Insert STI Tap: Spiral Point, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute

The OSG Screw Thread Insert STI Tap: Spiral Point (MPN 30102501) is a spiral-point STI tap for steel and stainless steel, with a 1/2"-20 UNF thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G Electric…

SKU 3G-OTH-265448

Brand
OSG
Item
Screw Thread Insert STI Tap: Spiral Point, 1/2"-20 UNF, H4 / 2B-3B, 3 Flute
Category
Spiral-Point STI Taps for Steel & Stainless Steel
Available to Order
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Worldwide Shipping
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Technical specs
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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
30102501
Type
H4 / 2B-3B, Plug Chamfer
Flute
3
UNF
1/2"-20

Technical Documents

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

Product Description

The OSG Screw Thread Insert STI Tap: Spiral Point (MPN 30102501) is a spiral-point STI tap for steel and stainless steel, with a 1/2"-20 UNF thread, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. 3G Electric interprets this demand and sources the genuine OSG tap, backed by specialist expertise across 14 industrial departments.

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 the OSG Screw Thread Insert STI Tap used for?

The 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 automotive, aerospace, and general manufacturing where strong, wear-resistant threads are required in softer base materials.

What are the specifications of the OSG STI Tap 30102501?

This OSG STI Tap has a 1/2"-20 UNF thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a spiral-point design for steel and stainless steel. The manufacturer part number is 30102501. It is designed for use with screw thread inserts.

Where to buy the OSG STI Tap 30102501 worldwide?

You can source the OSG STI Tap 30102501 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this OSG tap.

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

Select an OSG STI tap based on the insert's thread size and pitch, such as 1/2"-20 UNF. Ensure the tap tolerance (e.g., H4 / 2B-3B) matches the required class of fit. Use a spiral-point design for through-hole applications in steel or stainless steel to push chips ahead.

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 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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