Stainless Steel Din7982 Flat Head Self Tapping Screw
Product Description
Flat Head Self Tapping Screw
Self-tapping screws are threaded fasteners that are self-tapping in the pre-drilled holes of metal or non-metal materials.High-strength, single-piece, single-sided combination. Due to its self-forming or tapping its matching thread, it has high anti-loose ability in combination and can be loaded and unloaded. Its size, thread type and head on small screws Type and tapping performance are almost limitless in engineering applications.
Specification
| ST2.2 | ST2.9 | ST3.5 | (ST3.9) | ST4.2 | ST4.8 | ST5.5 | ST6.3 |
| P | Screw pitch | ||||||
| a | Maximum value | ||||||
| dk | Maximum value = nominal | ||||||
| Minimum value | |||||||
| k | ≈ | ||||||
| y | Maximum value | Type C | |||||
| Type F | |||||||
| Slot number | |||||||
| M1 | ≈ | ||||||
| M2 | ≈ | ||||||
| 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| 0.8 | 1.1 | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| 4.3 | 5.5 | 6.8 | 7.5 | 8.1 | 9.5 | 10.8 | 12.4 |
| 4 | 5.2 | 6.44 | 7.14 | 7.74 | 9.14 | 10.37 | 11.97 |
| 1.3 | 1.7 | 2.1 | 2.3 | 2.5 | 3 | 3.4 | 3.8 |
| 2 | 2.6 | 3.2 | 3.5 | 3.7 | 4.3 | 5 | 6 |
| 1.6 | 2.1 | 2.5 | 2.7 | 2.8 | 3.2 | 3.6 | 3.6 |
| 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 |
| 2.5 | 3 | 4.2 | 4.6 | 4.7 | 5.1 | 6.8 | 7.1 |
| 2.4 | 2.8 | 4 | 4.2 | 4.4 | 5 | 6.3 | 7 |
| A thousand pieces of steel≈kg | |||||||
| - | - | - | - | - | - | - | - |
Material
| SS316 Chemical Composition(%) | ||||||||
| Grade | C≤ | Mn≤ | P≤ | S≤ | Si≤ | Ni | Cr | Mo |
| 0.08 | 2.00 | 0.045 | 0.030 | 1 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | |
| 316 Mechanical property | |||
| σb≥ | σ0.2≥ | δ5 (%)≥ | Hardness(HB)(kgf/mm2)] |
| 520(Mpa) | 205(Mpa) | 40% | ≤187 HRB≤90 HV ≤200 |
| 304 Chemical Composition(%) | ||||||||
| Grade | C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr | Ni | N≤ |
| 0.08 | 2 | 0.75 | 0.03 | 0.045 | 18.0-20.0 | 8.0-10.5 | 0.1 | |
| 304 Mechanical property | |||
| σb≥ | σ0.2≥ | δ5 (%)≥ | Hardness(HB)(kgf/mm2)] |
| 520(Mpa) | 205(Mpa) | 40% | ≤187 HRB≤90 HV ≤200 |