M5 M4 M3 Plain Polished Cross Recessed Button Head Sems Metal Screw Din7985 Din125 Din127 A2 A4 70 80

These precision SEMS screws feature a cross recessed pan head with a polished, mirror‑like finish that enhances appearance. The washer combination includes a DIN125 flat washer and a DIN127 spring washer, both pre‑assembled and captive. Manufactured from A2 (304) or A4 (316) stainless steel with strength classes 70 or 80, they are ideal for compact electronic and instrument assemblies. The pan head provides a larger bearing surface, while the polished surface offers a bright, uncoated look. Conforming to DIN7985 (screw), DIN125 (flat washer) and DIN127 (spring washer), these screws ensure dimensional consistency and interchangeability.

• Consumer electronics: laptop housings, smart speakers, gaming controllers.
• Precision instruments: optical devices, laboratory meters.
• Medical equipment housings (non‑implantable): monitoring devices, ultrasound probe holders.
• Communication modules: vibration‑resistant joints with spring washer.
• DIY kits and modelling: polished head adds aesthetic value.

• Diameters: M3, M4, M5
• Head: Cross recessed pan head (DIN7985)
• Washers: DIN125 flat + DIN127 spring (captive)
• Materials: A2‑70, A2‑80, A4‑70, A4‑80
• Finish: Plain polished
• Thread: Full thread