ISO 14585:2011 Pan Head Torx Tapping Screw combines a pan head with a Torx drive, offering good bearing contact and stable torque transmission. It is suitable for automated assembly and applications where drive recess damage needs to be controlled.
The Torx drive reduces the risk of cam-out and improves consistency during continuous installation. The tapping thread is suitable for pilot holes in thin metal, plastic, and light materials, while the pan head provides a larger bearing surface to help protect the fastened part.
This product can be used in electronic equipment, automotive interiors, appliances, plastic housings, light frames, and industrial panels. Zinc plating, stainless steel, or other surface treatments can be selected for corrosion resistance, appearance, and high-volume assembly needs.

Dimensions unit: inch
|
Thread size |
ST2.9 |
ST3.5 |
ST4.2 |
ST4.8 |
ST5.5 |
ST6.3 |
||
|
P |
Pitch |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 |
1.8 |
|
|
a |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 |
1.8 |
||
|
da |
Max. |
3.5 |
4.1 |
4.9 |
5.6 |
6.3 |
7.3 |
|
|
dk |
Max.=Nominal |
5.6 |
7 |
8 |
9.5 |
11 |
12 |
|
|
Min. |
5.3 |
6.64 |
7.64 |
9.14 |
10.57 |
11.57 |
||
|
k |
Max.=Nominal |
2.4 |
2.6 |
3.1 |
3.7 |
4 |
4.6 |
|
|
Min. |
2.15 |
2.35 |
2.8 |
3.4 |
3.7 |
4.3 |
||
|
r |
Min. |
0.1 |
0.1 |
0.2 |
0.2 |
0.25 |
0.25 |
|
|
R |
≈ |
5 |
6 |
6.5 |
8 |
9 |
10 |
|
|
y |
Reference value |
Type C |
2.6 |
3.2 |
3.7 |
4.3 |
5 |
6 |
|
Type F |
2.1 |
2.5 |
2.8 |
3.2 |
3.6 |
3.6 |
||
|
Type R |
/ |
2.7 |
3.2 |
3.6 |
4.3 |
5 |
||
|
Slot number |
10 |
15 |
20 |
25 |
25 |
30 |
||
|
A |
Reference value |
2.8 |
3.35 |
3.95 |
4.5 |
4.5 |
5.6 |
|
|
t |
Max. |
1.27 |
1.4 |
1.8 |
2.03 |
2.03 |
2.42 |
|
|
Min. |
1.01 |
1.14 |
1.42 |
1.65 |
1.65 |
2.02 |
||
ABOUT US
Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010.
The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.
With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.
Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time delivery
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