LED Yellow 16mm Illuminated Metal Push Button Switch 1491 These are M3 crosshead cap

These are M3 crosshead cap screw

The Bone Conductor Transducer with Wires 8 Ohm 1 Watt is an audio module designed for sensing

Then squeeze down with parallel-jaw or slip joint pliers - don't use needle-noses

USB host 480 Mbit/sec I/O Pins 64 digital I/O

Family anti-theft alarms

LED Yellow 16mm Illuminated Metal Push Button Switch 1491 These are M3 crosshead capThese chrome plated metal buttons are rugged and look real good while doing it! Simply drill a 16mm hole into any material up to 1 2" thick and you can fit these in place, there's even a rubber gasket to keep water out of the enclosure. On the front of the button is a flat metal actuator, surrounded by a YELLOW plastic LED ring. On the back, there are 3 contacts for the button (common, normally open and normally closed) and 2 for the YELLOW LED ring