Product Description
M2.5 x 4mm A2 Stainless Steel Countersunk Slotted Machine Screws DIN 963
M2.5 countersunk slotted machine screws manufactured from A2 stainless steel to DIN 963. These screws have a standard metric coarse thread with a 0.45mm pitch and an overall length of 4mm.
The flat countersunk head seats flush with the surface in a correctly prepared countersink. A straight slotted drive allows installation with a suitable flat-bladed screwdriver, making these screws suitable for small assemblies, repairs and maintenance work.
Technical Specifications
| Standard | DIN 963 |
|---|---|
| Material | A2 stainless steel |
| Thread size | M2.5 |
| Nominal thread diameter | 2.5mm |
| Thread pitch | 0.45mm |
| Thread type | Metric coarse |
| Head type | Flat countersunk |
| Drive type | Slotted |
| Overall length | 4mm, including the head |
Head Dimensions
| Measurement | Dimension |
|---|---|
| Head diameter | 4.7mm |
| Head height | 1.5mm |
| Nominal slot width | 0.6mm |
Dimensions are provided as a guide and are subject to manufacturing tolerances.
Available Size and Pack Quantities
| Thread Size | Overall Length | Pack Quantities |
|---|---|---|
| M2.5 x 0.45 | 4mm | 1, 5, 10, 20, 50, 100, 250, 500 or 1000 |
Fitting Advice
Use with a matching M2.5 x 0.45 nut or tapped hole. Check that the countersink suits the screw head and allow sufficient thread engagement for the assembly. Start the screw by hand, then tighten with a screwdriver blade that fits the slot securely. Avoid overtightening.
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