OSG Screw Thread Insert STI Tap: Thread Forming, 5/16"-24 UNF, H4 / 2B-3B
The OSG Screw Thread Insert STI Tap is a thread-forming tap in size 5/16"-24 UNF, with an H4 / 2B-3B tolerance and V Coated Cobalt construction (MPN 1626002508). Designed for forming internal threads in prepared…
SKU 3G-OTH-403953
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.
Need installation or engineering help?
Ask a question
Product Description
The OSG Screw Thread Insert STI Tap is a thread-forming tap in size 5/16"-24 UNF, with an H4 / 2B-3B tolerance and V Coated Cobalt construction (MPN 1626002508). Designed for forming internal threads in prepared holes for screw thread inserts, this tap is supplied by 3G Electric across 14 industrial departments, with specialist depth in cutting tools and precision threading solutions.
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 metal or plastic that accept helical wire thread inserts. It is ideal for repairing or reinforcing threads in automotive, aerospace, and industrial maintenance applications where joint strength and wear resistance are critical.
What are the specifications of the OSG 1626002508 STI Tap?
The OSG 1626002508 is a thread-forming STI tap with 5/16"-24 UNF thread size, H4 / 2B-3B tolerance class, and V coated cobalt construction. It is designed for forming threads that accept screw thread inserts, providing improved thread strength and surface finish in harder materials.
Where to buy OSG STI taps in worldwide?
3G Electric supplies and delivers OSG STI taps worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the OSG 1626002508 or other thread-forming taps.
How to select the correct OSG STI tap size?
To select the correct OSG STI tap, match the tap thread size and pitch to the insert you plan to install. For the 1626002508, use a 5/16"-24 UNF insert. Verify the material hardness and choose the appropriate coating — V coated cobalt suits harder alloys. Always consult the insert manufacturer's recommended tap drill size.
Used in
Common applications for OSGOSG Products
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.
