Enoki uses metric fasteners to assemble water level switch. And Enoki can supplies a few by SAL.
The strings in the brackets are abbreviation.
Polycarbonate(pc), Nylon(ny), Polyacetal(pom), Stainless(sus), Brass(bs), Steel(unmarked)
pan, bind(bi), socket(soc), hexagonal(hex), truss(tr), flat(fl), p3, p4
If you want to know metric plastic washer or spacer hole, refer metric
screw tolerance in Table5.
For example, searching prefix string of polycarbonate screw is sc-pc.
M3x6 searches among all of them including M3x6.
All the abbreviated prefix of part names are sc (screw), sp (spacer), ws (washer), wssp (spring washer), nut(nt) including press nut.
ws-cc, sp-as, sp-asb, sp-bsb are types of Hirosugi.
Mass unit is 0.1g, therefore the value 2 means 0.2g.