ISO7380 Hex Socket Button Head Cap Bolts Screw- Alloy Steel

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1.Exceptional Performance – Manufactured from quenched-and-tempered alloy steel hardened to ISO class 12.9 (≈ 180 ksi / 1 240 MPa tensile strength), these button-head hex-socket cap screws deliver very high clamp load while the broad, low-profile dome resists snagging and distributes bearing pressure to protect painted or soft surfaces. A precision black-oxide or zinc-phosphate finish adds mild corrosion protection and a low-glare appearance without affecting dimensional accuracy.

2.Versatile Application Range – Favoured in robotics covers, machine guards, automotive trim, bicycle components, tooling fixtures, electronics enclosures, and any assembly that needs maximum strength in a space-sensitive location where a standard socket-cap head would protrude. The smooth button head prevents clothing catch points and gives equipment a clean, finished look.

3.Easy to Operate – The deep internal hex recess accepts standard Allen keys or power bits, enabling quick, one-handed tightening even in recessed cavities while withstanding high torque without cam-out. Rolled UNC or metric threads start smoothly and reduce galling; a chamfered lead-in guides the screw straight into tapped holes, cutting assembly time and preventing cross-threading.

4.Reliable Quality – Produced in ISO 9001-certified facilities and conforming to ASME B18.3 / ISO 7380-2 dimensional standards and ISO 898-1 mechanical requirements. Each lot undergoes thread-gauge verification, hardness and tensile testing, magnetic-particle inspection for surface flaws, and is marked with laser-etched heat-lot codes. EN 10204 3.1 material certificates ensure full traceability, guaranteeing consistent, high-quality performance in demanding industrial environments