OSG Screw Thread Insert STI Tap: Spiral Point, M8x1.25 Metric, D3 / 4H-6H, 3 Flute
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for M8x1.25 metric threads with a D3 / 4H-6H tolerance class and plug chamfer. This 3-flute tap, MPN 12700700, is engineered for threading holes that…
SKU 3G-OTH-287012
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Product Description
The OSG Screw Thread Insert STI Tap is a spiral-point tap designed for M8x1.25 metric threads with a D3 / 4H-6H tolerance class and plug chamfer. This 3-flute tap, MPN 12700700, is engineered for threading holes that will accept screw thread inserts.
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 aluminum, cast iron, and steel components.
What are the specifications of the OSG STI Tap M8x1.25?
The OSG STI Tap has an M8x1.25 metric thread, a D3 / 4H-6H tolerance class, 3 flutes, and a plug chamfer. It is a spiral-point design for through-hole tapping. The manufacturer part number is 12700700. This tap is engineered for use with STI 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 Screw Thread Insert STI Tap MPN 12700700.
How to select the correct OSG STI Tap for a thread repair?
Select an OSG STI Tap that matches the thread size and pitch of the insert you plan to install. For M8x1.25 inserts, use the OSG STI Tap with a D3 / 4H-6H tolerance. Ensure the tap has the correct chamfer type—plug for most applications—and that your pre-drilled hole diameter matches the STI tap drill size.
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3G Electric supplies OSG spiral-point sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
