Hex Socket Screws (TCEI – TBEI + TBEI/FL – TPSEI)
Hex socket screws include various types such as:
- TCEI – Cylindrical head socket screws DIN 912 / UNI 5931;
- TBEI – Button head socket screws ISO 7380;
- TBEI/FL – Flanged button head socket screws ISO 7380-2;
- TSPEI – Flat countersunk head socket screws DIN 7991 / UNI 5933;
They feature a cylindrical head with an internal hex drive, making them ideal for tight spaces, flush assemblies, or applications requiring a clean look and secure tightening.
Fields of Application
Our screws and bolts are used in:
- Mechanical industry: fastening of precision components and machinery.
- Automotive: assembly of engine internals and lightweight frame structures.
- Aerospace: applications requiring reduced weight and maximum safety.
- Electronics: compact and discreet fixings for devices.
- Industrial design: aesthetic solutions for furniture and structural elements.
Types
Cylindrical Head Screws with Hex Socket
Finishes
- White zinc-plated
- Raw (untreated)
| UNI | DIN | ISO | |
|---|---|---|---|
| 8.8 / 8.8 | ex5931 / ex5932 | ex912 / ex912 | 4762/4762 |
| 10.9 / 12.9 | ex5931 / ex5931 | ex912 / ex912 | 4762 / 4762 |
Flat Countersunk Head Screws with Hex Socket
Finishes
- White zinc-plated
- Raw (untreated)
| UNI | DIN | ISO | |
|---|---|---|---|
| 10.9 | ex5933 | ex7991 | 10642 |
Button Head Screws with Hex Socket
Finishes
- White zinc-plated
- Raw (untreated)
| UNI | DIN | ISO | |
|---|---|---|---|
| 10.9 | – | – | 7380 |