塑料用螺丝
STP39 1.0×3.5 – T3
钢材，硬化处理
锌镍镀层最小5µm，钝化黑色/无铬VI，烘烤，密封处理
与KN6039相同
类似于WN1452 / WN5452 / KN1039
| 技术参数 | ||
|---|---|---|
| Item Number | STP390100035B | |
| Standard | KN6039 | |
| Material | steel, hardened | |
| Surface | Zinc-Nickel-plated min. 5µm, passivated black/ Cr-VI-free, baked, sealed | |
| Thread Outside-Ø | d1 | 1.00+0.08 mm |
| Thread Core-Ø | d2 | 0.64 mm |
| Thread Pitch | p | 0.44 mm |
| Length | L | 3.50±0.38 mm |
| Head-Ø | D | 2.00-0.25 mm |
| Head Height | K | 0.800±0.125 mm |
| Thread Run-Out | X | 0.50 mm |
| Radius | R | 0.20 mm |
| Size Six Lobe | T3 | |
| Penetration Depth | t | 0.30 – 0.45 mm |
| Thread | STS-plus | |
| Weight | 0.026 kg / 1000 pieces | |