OSG 1/2"-20 UNF General Purpose STI Tap, H3 / 2B-3B, Plug Chamfer, 4 Flute
The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for 1/2"-20 UNF threads. It features a Plug Chamfer, 4 flutes, and an H3 / 2B-3B tolerance class (MPN 1813800).
SKU 3G-OTH-262123
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 1/2"-20 UNF threads. It features a Plug Chamfer, 4 flutes, and an H3 / 2B-3B tolerance class (MPN 1813800).
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 metal or plastic for installing helical wire thread inserts. It is commonly applied in automotive, aerospace, and general manufacturing to repair or reinforce threaded holes, ensuring strong, wear-resistant connections.
What are the specifications of the OSG STI Tap 1813800?
The OSG STI Tap 1813800 is a general-purpose tap with a 1/2"-20 UNF thread, H3 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It has a straight flute design for chip evacuation. The H3 / 2B-3B specification ensures compatibility with standard thread insert classes.
Where to buy OSG STI Tap 1813800 worldwide?
You can source the OSG STI Tap 1813800 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; we supply genuine OSG tooling for your manufacturing needs.
How to select the correct OSG STI tap for thread inserts?
Select an OSG STI tap based on the thread size and class of the insert. For a 1/2"-20 UNF insert, use a tap with matching pitch and H3 / 2B-3B tolerance. Ensure the tap has a plug chamfer for through-hole applications. Always match the tap to the insert manufacturer's specifications for proper fit.
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.
