Here are all the screws you need for to replace your worn out H1-500cc handlebar switch gear screws.

You get grade A2 stainless philips:-

3 x Pan M5 x 20mm

3 x Pan M5 x 25mm

3 x Pan M5 x 30mm

If you need alternative sizes let me know.

Please remember to use some anti-seize lubricant, like copper grease, to make it easier to remove them in the future.