OSG Screw Thread Insert STI Tap: Straight Fute, 1"-8 UNC, H4 / 2B, 4 Flute
The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for 1"-8 UNC threads, specified as H4 / 2B with a Plug Chamfer and 4 flutes (MPN 12604700). 3G Electric interprets this demand and…
SKU 3G-OTH-262008
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Product Description
The OSG Screw Thread Insert STI Tap (Straight Flute) is a general-purpose STI tap for 1"-8 UNC threads, specified as H4 / 2B with a Plug Chamfer and 4 flutes (MPN 12604700). 3G Electric interprets this demand and sources the exact OEM tool, backed by specialist expertise across 14 industrial departments — and we supply far more than is listed.
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 workpiece before installing a helical wire thread insert. It is commonly applied in automotive, aerospace, and general manufacturing to repair or reinforce threaded holes in softer materials like aluminum or cast iron.
What are the specifications of the OSG STI Tap MPN 12604700?
The OSG STI Tap MPN 12604700 is a general-purpose tap with a 1"-8 UNC thread, H4 / 2B tolerance, 4 flutes, and a plug chamfer. It is designed for straight-flute operation and is suitable for cutting threads in materials requiring thread insert installation.
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 times on the OSG Screw Thread Insert STI Tap MPN 12604700.
How to select the correct OSG STI Tap for a thread insert?
To select the correct OSG STI Tap, match the tap's thread size and pitch to the insert's specifications. For example, the OSG 12604700 is for 1"-8 UNC inserts. Ensure the tap's tolerance (H4 / 2B) aligns with the desired thread class. Always verify the chamfer type—plug chamfer suits most general applications.
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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.















