SUNCO
21-A310 + Tapping Type B0 Slim Head
Model: 21-A310
Dia range:M3～M4
Length range:8～16
Iron (or standard), Stainless steel (303, 304,…).
Plain, Zinc blue cr6+, Zinc yellow cr6+, Trivalent zinc cr+3 color white,…
| Nominal Diameter (d) | D | k | Cross Slot Number | ||
|---|---|---|---|---|---|
| Standard Dimension | Tolerance | Standard Dimension | Tolerance | ||
| 3 | 6 | 0 -0.5 | 0.8 | ±0.1 | 1 |
| 4 | 8 | 0.9 | 2 | ||
