ISO 10642 flat head screw with hex drive, M20 x 40, Article number 10642A420040. Made in stainless steel a4. Flat Head Screw with Hex Drive manufactured to ISO 10642 with ISO metric (M) thread, coarse pitch, fully threaded. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution.
| Standard | ISO 10642 |
| Type | Flat Head Screw |
| Property class / grade | A4 |
| Class (detailed) | A4 |
| Thread type | M |
| Thread diameter | 20 mm |
| Pitch | 2.5 mm |
| Thread pitch class | Coarse |
| Thread direction | Right |
| Length | 40 mm |
| Thread length | 29.84 mm |
| Tapping length | 29.84 mm |
| Threading | Fully Threaded |
| Fully threaded | Yes |
| Head type | Countersunk Flat Head |
| Drive type | Hex Drive |
| Key width (across flats) | 12 mm |
| Key depth | 5.6 mm |
| Head height | 10.16 mm |
| Head diameter | 36.75 mm |
| Surface treatment | Plain (no plating) |
| Surface treatment code | PLAIN |
| Chamfer Angle | 90 deg |
| Length | 40 mm |
| Thread standard | ISO metric (M) |
| Article number | 10642A420040 |
| Category | Bolts and Screws / Socket Head Screws |
| Material | Stainless A4 |
| Primary standard | ISO 10642 |
| Standard size | M20 x 40 |
| Thread standard | ISO metric (M) |
| MOQ | 1 |