Material and surfaces of Tucker weld studs

From simple bearing protection to long-term corrosion protection, STANLEY Engineered Fastening can offer the right surface quality. We develop and adhere to the requirements of all release processes throughout the automotive industry for our customers.
Materials and stability classes for Tucker weld studs are also harmonised with all customer requirements.
Stability class | Description |
---|---|
A2 | high quality steel A2 |
F1 | high quality steel F1 |
Cu | Copper |
4.8 | Steel 4.8 |
AlMg | Aluminium-Magnesium |
Brass | Messing |
6 | Steel 6 |
6.8 | Steel 6.8 |
8 | Steel 8 |
8.8 | Steel 8.8 |
10 | Steel 10 |
surface- code | Description |
---|---|
0 | burnished copper plating, 2-6 µm |
2 | nickel-plated, 10 - 15 µm |
3 | burnished copperplating 8 - 12 µm |
4 | galvanised, 8 - 12 µm, chromalised black |
5 | uncoated without subsequent processing |
6 | galvanised without subsequent processing, |
10 | galvanised, 6 - 12 µm, |
13 | burnished copperplating + lubricant |
16 | Tin/Zinc SnZn 70/30, |
17 | Titanium protective coating |
18 | Zinc/Iron ZnFe , |
19 | Aluminium-etched with titanium conversion treatment |
21 | Almac, 14 +/- 3 µm silvery grey TL155 |
22 | galvanised, 8 - 12 µm, colourless/bluish |
23 | with anti-friction agent |
24 | sealed with sealing wax |
25 | galvanised, 8 - 12 µm, colourless/bluish |
26 | Tin/Zinc SnZn 70/30, |
27 | Aluminium polished with titanium conversion treatment |
29 | Tin/Zinc SnZn 30/70, |
30 | Tin/Zinc SnZn 70/30, |
31 | Zinc flake coated surface |
32 | Zinc/Nickel 12-15% Nickel, |
34 | Tin/Zinc SNZn 70/30, |
35 | Zinc flake coated surface |
36 | Zinc/Nickel 12-15% Nickel, |