Countersunk Torx Screw with Pin

Countersunk Torx screws with pin combine a flush-mounted countersunk head with a six-lobe Torx drive and a central security pin. The recessed Torx profile provides positive engagement between the driver and screw, while the center pin prevents the use of standard Torx bits without a corresponding security opening. This tamper-resistant design helps reduce unauthorized removal and is suitable for assemblies where controlled access or additional fastening security is required.

The countersunk head allows the screw to sit flush with or below the surrounding surface, providing a clean appearance and reducing interference with adjacent components. Compared with conventional slotted or Phillips drives, the Torx profile provides multiple contact points and helps reduce cam-out during installation, making it suitable for applications requiring repeated or controlled fastening.

We manufacture and supply countersunk Torx screws with pin in carbon steel, alloy steel, and stainless steel, with metric and inch sizes available. Different Torx drive sizes, security pin dimensions, screw lengths, surface finishes, and material grades can be supplied according to our standard product range or specific requirements. Production includes cold heading, countersunk head forming, Torx socket forming, thread rolling, heat treatment where applicable, surface finishing, and final inspection.

Specification:

Dimension Chart:

Metric 90° Countersunk Torx Screws with Pin

The following dimension chart lists the main dimensions of metric countersunk Torx security screws with pin, featuring a 90° countersunk head. It covers key specifications such as thread diameter, thread length, head diameter, and head height to help identify the appropriate size for your application

Inch 80° Countersunk Torx Screws with Pin

The following dimension chart provides the main dimensions of inch-series countersunk Torx security screws with pin, featuring an 80° countersunk head. The table includes key measurements for selecting the correct screw size and ensuring compatibility with the corresponding countersunk hole.

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