Socket, Torx & Special-Drive Screws
Hex socket and Torx drive screws in pan, button and countersunk heads for higher drive torque without cam-out.
Manufactured by Uvi Tech Fit in Kundli, Sonipat, India.
Or message us on WhatsAppISO 14583, ISO 7380, ISO 10642

Overview
Beyond Phillips and slotted drives, UVI supplies hex-socket (Allen) CSK and button-head screws, Torx pan-head screws, long button-head pins, and special hollow or slotted-drive forms. These drives carry higher torque and suit machine assembly where cam-out must be avoided.
Also known as: Allen screw, hex socket screw, Torx screw.
Related parts: Pivots & Ball Studs, Brass Nozzle Inserts & Turned Brass Parts, Washers & Wire-Form Retaining Clips
Used in
- Machine and equipment assembly
- Jigs, fixtures, and tooling
- High-torque fastening points
- Electronics and precision hardware
- Long-reach pin and spacer screws
Dimensions
Drive sizes by head type
| Size | Torx pan (ISO 14583) | Button hex (ISO 7380) | CSK hex (ISO 10642) |
|---|---|---|---|
| M3 | T10 | 2 | 2 |
| M4 | T20 | 2.5 | 2.5 |
| M5 | T25 | 3 | 3 |
| M6 | T30 | 4 | 4 |
| M8 | T45 | 5 | 5 |
Hex sizes are key sizes in mm. Lengths up to 100 mm; special and hollow drives made to drawing.
Parts are checked at each stage with vernier calipers, micrometers and visual inspection. Material and test reports can be arranged on request.
Request a Quote
Give size, length, material, finish and quantity. For a custom part, attach a drawing or a photo of the sample.
Questions
Torx or hex socket?
Torx carries more torque with less bit wear and suits automated driving. Hex socket keys are more widely available in the field.
Can you add a tamper-resistant pin to the drive?
Pin-in-Torx and pin-in-hex can be made to drawing. See also Security Screws & Nuts.
Can these have a locking patch?
Yes. See Button-Head Lock-Tight Screws.
