OSG Screw Thread Insert STI Tap: Straight Fute, 1/4"-20 UNC, H3 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap (SKU 3G-OTH-262121, MPN 1812000) is a general-purpose STI tap with a straight flute design, sized at 1/4"-20 UNC. It features an H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer…
SKU 3G-OTH-262121
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 (SKU 3G-OTH-262121, MPN 1812000) is a general-purpose STI tap with a straight flute design, sized at 1/4"-20 UNC. It features an H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer, making it suitable for threading insert-ready holes.
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 a pre-drilled hole before installing a helical wire thread insert. It is commonly applied in automotive, aerospace, and general manufacturing to repair or reinforce threads in softer materials like aluminum or cast iron.
What are the specifications of the OSG STI Tap 1812000?
The OSG STI Tap 1812000 is a straight flute, general purpose tap with a 1/4"-20 UNC thread size. It has a H3 / 2B-3B tolerance class, 3 flutes, and a plug chamfer. This tap is designed for use with screw thread inserts and is made by OSG.
Where to buy OSG STI Tap 1812000 worldwide?
You can source the OSG STI Tap 1812000 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?
To select the correct OSG STI tap, match the tap thread size and pitch to the insert's internal thread specification. For example, the 1812000 is for 1/4"-20 UNC inserts. Ensure the tap tolerance class (H3 / 2B-3B) aligns with the required thread fit for your application.
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.
