塑料用螺絲
STP39 1.0×3.5 – T3
鋼材，硬化處理
鋅鎳鍍層最小5μm，鈍化黑色/無鉻VI，烘烤，密封處理
與KN6039相同
類似于WN1452 / WN5452 / KN1039
| 技術參數 | ||
|---|---|---|
| Item Number | STP390100035B | |
| Standard | KN6039 | |
| Material | steel, hardened | |
| Surface | Zinc-Nickel-plated min. 5μm, passivated black/ Cr-VI-free, baked, sealed | |
| Thread Outside-? | d1 | 1.00+0.08?mm |
| Thread Core-? | d2 | 0.64?mm |
| Thread Pitch | p | 0.44?mm |
| Length | L | 3.50±0.38?mm |
| Head-? | 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 | |