M5 part threaded machine screw with flat countersunk head and 3mm allen key fitting
- Manufacturer: Various
- Product ID: Various
The part threading is important as the smooth part of the screw acts as a bearing for a spring under tension. The part threading should extend for only 18mm to avoid it interfering with the spring.
Indicative Pricing With Allowance for P&P
We only use two of these at present in the AuthentiKit range of controls, so buy the smallest pack you can. The above ebay seller makes for an effective price of just under £1 each as long as you make use of 2 screws.
Phillips head is OK, but the head must be countersunk. See above for minimum part threading.