Stainless Steel Torx Button
Stainless Steel Torx Button
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Torx Button Screws ISO 7380-1
A2-70 Stainless Steel
Key Features
✔️ Conformity Certificate supplied as standard.
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Carbolts Precision Technical Information
| Diameter (d) | Pitch | Torx Drive | dk | k | t (min) |
|---|---|---|---|---|---|
| M2 | 0.40 | 6 | 3.50-3.30 | 1.30-1.10 | 0.80 |
| M2.5 | 0.45 | 8 | 4.70-4.50 | 1.50-1.36 | 1.00 |
| M3 | 0.50 | 10 | 5.70-5.40 | 1.65-1.40 | 1.01 |
| M4 | 0.70 | 20 | 7.60-7.24 | 2.20-1.95 | 1.42 |
| M5 | 0.80 | 25 | 9.50-9.14 | 2.75-2.50 | 1.65 |
| M6 | 1.00 | 30 | 10.50-10.07 | 3.30-3.00 | 2.02 |
| M8 | 1.25 | 40 | 14.00-13.57 | 4.40-4.10 | 2.80 |
| M10 | 1.50 | 50 | 17.50-17.07 | 5.50-5.20 | 3.62 |
| M12 | 1.75 | 55 | 21.00-20.46 | 6.60-6.24 | 4.16 |
Torx Button Flange Bolts in Stainless Steel
The Torx drive, formally defined as a hexalobular internal drive, offers a number of practical advantages over traditional hex socket (allen key) fasteners. The six-lobed star profile distributes torque across a significantly larger contact area than a hex socket of equivalent size, dramatically reducing the risk of cam-out (The tendency of a driver to slip out of the recess under high torque).
This makes Torx-drive button flange screws particularly well suited to production line assembly, power tool installation and any application where speed and repeatability matter. The increased contact area also means less force is needed at the driver to achieve the same clamping torque, reducing wear on both the fastener and the bit over time.
These button flange bolts are manufactured using A2-70 grade stainless steel to ISO 7380-1 specification. Carbolts stainless steel metric flange torx button bolts are available from M2, right through to M12 and come in a wide range of lengths. All supplied in various pack sizes.
Typical applications: Anywhere a clean, flush appearance is needed alongside the ability to withstand vibration and repeated assembly lines. In motorcycle manufacturing and custom builds they are the go-to fairing bolt, valued for their slim dome profile that sits neatly against bodywork without snagging or protruding.
Material: A2-70 stainless steel (grade 304)
Standard: ISO 7380-1
Drive: Internal Torx (Hexalobular) drive
'M' Sizes: M2, M3, M4, M5, M6, M8, M10, M12
Thread: Metric pitch.
Click to download the Torx Button Screw technical information sheet.
