OSG Screw Thread Insert STI Tap: Straight Fute, 3/8"-16 UNC, H3 / 2B-3B, 4 Flute
The OSG Screw Thread Insert STI Tap is a general-purpose STI tap with a straight flute design, sized 3/8"-16 UNC. It features an H3 / 2B-3B tolerance class and a plug chamfer with 4 flutes (MPN 1812800).
SKU 3G-OTH-262087
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Screw Thread Insert STI Tap is a general-purpose STI tap with a straight flute design, sized 3/8"-16 UNC. It features an H3 / 2B-3B tolerance class and a plug chamfer with 4 flutes (MPN 1812800).
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 pre-drilled holes for installing helical wire thread inserts. 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 1812800?
The OSG STI Tap 1812800 is a straight flute, plug chamfer tap with 4 flutes. It cuts 3/8"-16 UNC threads and is ground to H3 tolerance for producing 2B-3B class threads. This general-purpose tap is designed for use with screw thread inserts.
Where to buy OSG STI Taps worldwide?
You can source OSG STI Taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 1812800 or other thread insert taps.
How to select the correct OSG STI Tap for thread inserts?
To select the correct OSG STI Tap, match the tap size and thread pitch to the insert's specifications. For the 1812800, use it for 3/8"-16 UNC inserts. Ensure the tap tolerance (H3) aligns with the required thread class (2B-3B). Always verify the hole size per OSG recommendations before tapping.
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.
