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IFI-113:2007
Steel Self-Drilling Tapping Screws
This inch series standard covers requirements for steel, self-drilling, tapping screws suitable for use in general engineering applications.
The objective of this standard is to ensure that self-drilling tapping screws, by meeting the mechanical and performance requirements specified, shall drill a hole and form or cut mating threads in materials into which they are driven, without deforming their own thread and without breaking during assembly.
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Industrial Fasteners Institute [ifi]
