HELI-COIL Screw Thread Insert STI Tap: Straight Fute, #4-48 UNF, H1 / 3B, 3 Flute
The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for #4-48 UNF threads with H1 / 3B tolerance and a plug chamfer. It features a 3-flute design and is manufactured by…
SKU 3G-OTH-262117
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Product Description
The HELI-COIL Screw Thread Insert STI Tap: Straight Flute is a general-purpose STI tap designed for #4-48 UNF threads with H1 / 3B tolerance and a plug chamfer. It features a 3-flute design and is manufactured by HELI-COIL under part number 04FPB.
Frequently Asked Questions
What is the HELI-COIL Screw Thread Insert STI Tap used for?
The HELI-COIL STI Tap is used to cut internal threads for installing HELI-COIL screw thread inserts. It is designed for general-purpose thread repair and reinforcement in metal components, commonly used in automotive, aerospace, and industrial maintenance applications.
What are the specifications of the HELI-COIL 04FPB STI Tap?
The HELI-COIL 04FPB STI Tap is a straight flute tap with a #4-48 UNF thread size, H1 / 3B tolerance, 3 flutes, and a plug chamfer. It is designed for cutting threads to accept HELI-COIL inserts. The manufacturer part number is 04FPB.
Where to buy HELI-COIL STI Taps worldwide?
You can source HELI-COIL 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 04FPB tap.
How to select the correct HELI-COIL STI Tap for thread repair?
Select the HELI-COIL STI Tap that matches the thread size and pitch of the insert you plan to install. For example, the 04FPB is for #4-48 UNF inserts. Ensure the tap has the correct chamfer (plug, bottoming, or taper) for your application. Always follow the insert manufacturer's drilling and tapping guidelines.
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3G Electric supplies HELI-COIL general purpose sti taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















