DIN 966 Raised Countersunk Screws
DIN 966 Raised Countersunk Head Screws combine a partially countersunk head with a Phillips drive, making them a practical choice when the assembly requires a relatively low-profile head together with convenient cross-recess installation. The raised countersunk profile allows the screw to sit partly within a prepared countersunk hole while retaining a visible rounded section above the surface, offering a different seating appearance from a fully countersunk screw.
For customers assembling compact equipment, housings, panels, brackets, and light mechanical components, the Phillips recess provides a familiar driving interface and is particularly convenient for repeated installation with powered screwdrivers. The raised head also gives the fastener a defined seating surface without requiring the completely flush installation associated with a flat countersunk head.
Specification:
| Item | Specification |
|---|---|
| Standard | DIN966 |
| Product Type | Raised Countersunk Head Machine Screw |
| Head Style | Raised Countersunk Head |
| Drive Type | Phillips/Cross Recess |
| Thread | Metric Thread |
| Size Range | M1.6-M10 |
| Steel Property | ISO 898-1 |
| Stainless Steel Property | ISO 3506-1 |
| Material | Carbon Steel/Stainless Steel |
| Surface Treatment | Bright Pickling, Nylon Patch, Thread Locking, Zinc Plated, Black Oxidation |
Dimension Chart of DIN 966 Raised Countersunk Screws:
| Mon | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 |
| P | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| dk max | 3 | 3.8 | 4.7 | 5.6 | 6.5 | 7.5 | 9.2 | 11 | 14.5 | 18 |
| dk min | 2.75 | 3.5 | 4.4 | 5.3 | 6.14 | 7.14 | 8.84 | 10.57 | 14.07 | 17.57 |
| f | 0.4 | 0.5 | 0.6 | 0.75 | 0.9 | 1 | 1.25 | 1.5 | 2 | 2.5 |
| k max | 0.96 | 1.2 | 1.5 | 1.65 | 1.93 | 2.2 | 2.5 | 3 | 4 | 5 |
| No. | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 4 |
| M | 1.9 | 2.5 | 2.7 | 3.1 | 4.2 | 4.5 | 5.3 | 6.8 | 9 | 10 |
| t min | 0.74 | 1.1 | 1.3 | 1.7 | 1.74 | 2.04 | 2.77 | 3.03 | 4.18 | 5.38 |
| t max | 1.1 | 1.4 | 1.6 | 2 | 2.24 | 2.54 | 3.27 | 3.53 | 4.68 | 5.88 |
Application of DIN 966 Raised Countersunk Screws:
Compact Equipment and Precision Assemblies
The M1.6–M10 size range makes DIN 966 suitable for compact equipment where standard-size fasteners may be too large or where installation space is limited. Common applications include measuring instruments, control equipment, optical devices, small mechanisms, laboratory equipment, electronic housings, and precision mechanical assemblies. Smaller sizes are particularly useful for securing covers, brackets, panels, and other lightweight components.
Housings, Panels and Sheet-Metal Components
The raised countersunk head provides a relatively low-profile seating arrangement while retaining a defined head surface above the component. This makes DIN 966 suitable for equipment housings, electrical enclosures, control panels, sheet-metal covers, appliance components, brackets, and machine guards. It is a practical choice when a completely flush countersunk head is not necessary but a lower-profile fastening solution is preferred.
Repeated Assembly with Powered Tools
The Phillips drive makes DIN 966 suitable for assembly operations involving repeated fastening and removal, particularly where powered screwdrivers are used. Applications include production-line equipment, electronic product assembly, light machinery, instrument manufacturing, and general OEM assembly. The cross recess provides a familiar driving interface for automated or semi-automated fastening processes.