Shoulder Washers are usually used in the electronics industry. The shoulder or collar is inserted into a larger hole in a printed circuit board or chassis and positively locates the washer and insulates the screw, rivet or wire from a chassis or assembly.
Shoulder Washers Diameters
Shoulder Washers are available on the FCH Network with Imperial/US diameters that range from #1 to 6 and with Metric diameters that range from M3 to M8. The length of Shoulder Washers is usually measured from the point to the underside of the head.
Shoulder Washers are available on the FCH Network in materials that range from Steel to Resin (Phenolic, etc.)