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610510 Threadformers - Countersunk Undercut Head

610510 Threadformers - Countersunk Undercut Head

Designed for use in pilot holes in thicker steel substrates including blind holes these screws can also be used in pre-punched or drilled holes in thin steel applications in steel frame housing. Commonly used for attaching hinges to steel, the undercut head design allows for the screw head to finish flush with the surface of the hinge.

The recommended hole diameter for these M5 Threadformers™ in steel thicknesses in the range of 1.0~2.0mm is 4.50mm.
This will vary dependent upon several factors including:-
• the total thickness of materials being fastened together
• harder steels
• tolerances on hole diameters and irregular shaped holes can vary on different machines
• the choice of % of thread engagement (which is at the installers/manufacturers discretion)
For these reasons it is recommended for a pre-test to be conducted to confirm the most suitable hole size and type for your specific application.
The pre-test should involve several hole sizes being tested using a capture method whereby holes that are too large can be identified by having too low a driving torque and holes that are too small will have too high a driving torque and may stall the screwdriver, snap the screw or cause operator injury.
• Designed for fixing hinges to steel/metal supports where the head height of a standard Countersunk headed screw is greater than the thickness of the hinge and would cause the head to sit proud of the surface of the hinge
• Ideal for fixing thin mate
Size Coating Pack Type 520 Y Thread Length (TL) 530 Y Driver Tool 560 Y Drill Size 570 Y Head Diam. Code
M5 x 12mm