OSG Screw Thread Insert STI Tap: Spiral Point, 1/2"-20 UNF, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as 1/2"-20 UNF with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30102401). 3G Electric interprets this…
SKU 3G-OTH-265444
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
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap for steel and stainless steel, specified as 1/2"-20 UNF with H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 30102401). 3G Electric interprets this demand and sources the genuine OSG tool, 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 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 to repair or reinforce stripped threads without replacing the parent component.
What are the specifications of the OSG STI Tap 30102401?
The OSG STI Tap 30102401 is a spiral-point, plug-chamfer tap with 3 flutes, sized 1/2"-20 UNF. It is ground to H3 / 2B-3B tolerance for precise thread fit in steel and stainless steel. The spiral-point design pushes chips forward for through-hole tapping.
Where to buy OSG STI Taps worldwide?
3G Electric supplies OSG STI Taps like the 30102401 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this or any OSG cutting tool — we source genuine industrial equipment across 14 departments.
How to select the correct STI tap size for a thread repair?
Select an STI tap that matches the thread insert's nominal size and pitch — for example, a 1/2"-20 UNF STI tap for a 1/2"-20 UNF insert. The tap tolerance (H3 / 2B-3B) must align with the insert manufacturer's recommendation. Always drill the specified STI tap drill hole before tapping.
Used in
Common applications for OSGOSG 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.
