Thread Cutting Screws

Thread cutting screws are generally for applications where disruptive internal stresses are undesirable or where excessive driving torque would be encountered with thread forming screws. The point of the screw has been formed with a cut of varying types for specific applications.


Type 17: TC Screws for Wood

Type 17: TC Screws for Wood

A thread cutting screw for wood with a coarse tapping screw thread and a special long sharp point fluted to capture chips.
Type 1: TC Screws for Metal

Type 1: TC Screws for Metal

Hardened steel Type 1 thread cutting screws are made for use in harder metals such as steel, alloy steel and cast iron. They utilize a standard machine screw thread. They can be used on metals of any thickness and can be used repeatedly as needed. Extremely strong, these screws can often be employed in much smaller sizes than machine screws. Commonly available in heat treated, hardened steel though alternative materials such as brass, stainless steel and aluminum are possible via special order.
Type 23: TC Screws for Castings

Type 23: TC Screws for Castings

These thread cutting screws are for use in softer metal die castings such as aluminum, and zinc. The thread cutting slot is wider and off-center to allow more clearance for chips and a better cutting angle. They utilize a standard machine screw thread. Commonly available in heat treated hardened steel though alternative materials such as stainless steel, monel, brass and aluminum are available by special order.
Type 25: TC Screws for Plastics

Type 25: TC Screws for Plastics

Type 25 thread cutting screws have a wide cutting slot similar to the Type 23. Combined with wider spaced threads, this screw is ideal for plastic as it reduces the driving torque required, permits chips to fall free more easily and greatly reduces the stress on the material it is penetrating. Its qualities also reduce fracturing in more brittle plastics. Commonly available in heat treated hardened steel though alternative materials such as stainless steel, brass and aluminum are available by special order.
Type F: TC Screws

Type F: TC Screws

Type F thread cutting screws have four cutting notches and are used to make fastenings to castings, forgings, heavy sheet metal, structural steel, plywood and even plastics. They provide a tight vibrationless fit with a high resistance to torque shear and tension.

APEX FASTENERS, Inc 15858 Business Center Drive Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
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