ISO 14581 Countersunk Torx Machine Screw A4

Torx countersunk screw.
Material: acid-resistant stainless steel (A4).
Metric thread.
PLEASE NOTE! Due to the geometry of the countersunk head, the load-bearing capacity of these fasteners is limited.
Stainless steel fasteners with reduced or limited load-bearing capacity are marked either with a '0' before the property class designation, for example A4-070 (A4-70), or only with the steel grade, for example A4.

Torx countersunk head screws (countersunk screws, counter shank Torx head screws) are used in structures where the design of the screw drive head (dimensions such as diameter and height) imposes limitations and the screw head is required to sit flush with the surface.