OSG 1/2"-20 UNF Thread-Forming STI Tap, H7 / 2B-3B, Modified Bottoming Chamfer
The OSG Screw Thread Insert STI Tap is a thread-forming tap for 1/2"-20 UNF applications, with an H7 / 2B-3B tolerance and a modified bottoming chamfer (MPN 1626003808). 3G Electric sources this genuine OSG tool…
SKU 3G-OTH-403924
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 thread-forming tap for 1/2"-20 UNF applications, with an H7 / 2B-3B tolerance and a modified bottoming chamfer (MPN 1626003808). 3G Electric sources this genuine OSG tool across 14 industrial departments, with specialist expertise in combustion, pumps and controls ensuring accurate specification and supply.
Frequently Asked Questions
What is an OSG Screw Thread Insert STI Tap used for?
An OSG Screw Thread Insert STI Tap is used to form internal threads in pre-drilled holes for accepting screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required in softer materials like aluminum or plastics.
What are the specifications of the OSG STI Tap 1/2"-20 UNF?
This OSG STI Tap has a thread size of 1/2"-20 UNF, a thread tolerance of H7 / 2B-3B, and a modified bottoming chamfer. It is a thread-forming tap designed for use with screw thread inserts. The manufacturer part number is 1626003808.
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 this and other OSG tooling.
How to select the correct OSG STI Tap for an application?
To select the correct OSG STI Tap, match the thread size and pitch (e.g., 1/2"-20 UNF) to the insert requirements. Choose the thread tolerance (H7 / 2B-3B) based on the desired fit class. For blind holes, use a modified bottoming chamfer; for through holes, a plug chamfer is typical.
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3G Electric supplies OSG thread-forming sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
