OSG Screw Thread Insert STI Tap: Straight Fute, #4-40 UNC, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for #4-40 UNC threads, with H2 / 2B-3B tolerance, a plug chamfer, and 3 flutes (MPN 1804000). 3G Electric interprets this demand and…
SKU 3G-OTH-261976
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for #4-40 UNC threads, with H2 / 2B-3B tolerance, a plug chamfer, and 3 flutes (MPN 1804000). 3G Electric interprets this demand and sources the genuine OSG tool, backed by our specialist expertise across 14 industrial departments — including combustion, pumps, and controls — to ensure you get the right solution, not just a part.
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 a pre-drilled hole to accept a helical wire thread insert. It is used in industrial maintenance and production to repair or reinforce stripped threads in metal components, ensuring strong, reusable connections.
What are the specifications of the OSG STI Tap #4-40 UNC?
This OSG STI Tap is #4-40 UNC with a H2 / 2B-3B tolerance, 3 straight flutes, and a plug chamfer. It is designed for general-purpose thread insert installation. The manufacturer part number is 1804000.
Where to buy OSG STI Taps for worldwide delivery?
3G Electric supplies OSG STI Taps like the #4-40 UNC model (MPN 1804000) to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this precision threading tool.
How to select the correct STI tap size for a thread insert?
Select an STI tap that matches the thread insert's nominal size and pitch, such as #4-40 UNC. The tap's H2 / 2B-3B tolerance ensures proper fit for the insert. Always verify the tap's chamfer type (plug, bottoming, or taper) matches your hole depth and application requirements.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
