Externally threaded cylindrical pin (slotted headless screw)
GB878
Diameter range: M2-M20 Length range: 5-80
| standard | GB national standard |
|---|---|
| head shape | cylinder |
| Groove | Slotted, slotted |
| Material | 304 |
| Grade | A2-70 |
| Surface | whitewash |
| (mm) | M1 | M1.2 | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | 0.25 | 0.25 | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| b(min) | 1.2 | 1.4 | 1.9 | 2.4 | 3 | 3.6 | 4.2 | 4.8 | 6 | 7.2 | 9.6 | 12 |
| ds(min) | 0.86 | 1.06 | 1.46 | 1.86 | 2.36 | 2.86 | 3.32 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 |
| ds(max) | 1 | 1.2 | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | 8 | 10 |
| n(min) | 0.26 | 0.31 | 0.36 | 0.36 | 0.46 | 0.56 | 0.56 | 0.65 | 0.85 | 1.05 | 1.26 | 1.66 |
| n(max) | 0.4 | 0.45 | 0.5 | 0.5 | 0.6 | 0.7 | 0.7 | 0.8 | 1 | 1.2 | 1.51 | 1.91 |
| t(min) | 0.63 | 0.63 | 0.88 | 1 | 1.1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3.2 | 3.8 |
| t(max) | 0.78 | 0.79 | 1.06 | 1.2 | 1.33 | 1.5 | 1.78 | 2.05 | 2.35 | 2.9 | 3.6 | 4.25 |
| steel | Stainless steel | nonferrous metals | ||
| General technical conditions | ISO 8992 | |||
| Thread | tolerance | 6g | ||
| standard | GB/T 193、GB/T 9145 | |||
| Mechanical properties | Grade | 14H、22H、45H | A1-12H | CU2、CU3、AL4 |
| standard | GB/T 3098.3 | GB/T 3098.16 | GB/T 3098.10 | |
| tolerance | Product grade | A | ||
| standard | GB/T 3103.1 | |||
| surface treatment | Without treatment; | Simple handling | Simple handling; | |
| oxidation; | Electroplating technical requirements according to GB/T 5267.1 | |||
| Electroplating technical requirements shall comply with GB/T 5267.1; | ||||
| Technical requirements for non-electrolytic zinc flake coating according to GB/T 5267.2 | ||||
| surface defects | GB/T 5779.1 | |||
| Acceptance and packaging | GB/T 90.1、GB/T 90.2 | |||
