OSG Screw Thread Insert STI Tap: Spiral Point, #3-48 UNC, H2 / 2B-3B, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for threading multiple materials. This #3-48 UNC tap features an H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 31400108).
SKU 3G-OTH-284668
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 spiral-point tap designed for threading multiple materials. This #3-48 UNC tap features an H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer (MPN 31400108).
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 multiple materials for installing screw thread inserts. It is commonly applied in aerospace, automotive, and general manufacturing where strong, wear-resistant threads are required in softer base materials.
What are the specifications of the OSG STI Tap #3-48 UNC?
The OSG STI Tap has a #3-48 UNC thread size, H2 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a spiral-point design for through-hole tapping. The manufacturer part number is 31400108. It is designed for multiple materials and produces threads for STI 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 this OSG part number 31400108.
How to select the correct OSG STI Tap for an application?
Select an OSG STI Tap based on thread size (e.g., #3-48 UNC), tolerance class (H2 / 2B-3B), and material. For through-holes, use a spiral-point tap; for blind holes, use a spiral-flute tap. Match the tap to the insert manufacturer's specifications for proper thread fit.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point sti taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
