Metric fasteners

Introduction

Enoki uses metric fasteners to assemble water level switch. And Enoki can supplies a few by SAL.

The strings in the brackets are abbreviation.

Material

Polycarbonate(pc), Nylon(ny), Polyacetal(pom), Stainless(sus), Brass(bs), Steel(unmarked)

Head style

pan, bind(bi), socket(soc), hexagonal(hex), truss(tr), flat(fl), p3, p4[2]

Coating

Unichrome(un), Chromate(cr), White(wh)[3], Nickel(ni)

Search

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[5].

ws-cc, sp-as, sp-asb, sp-bsb are types of Hirosugi[4].

Mass unit is 0.1g, therefore the value 2 means 0.2g.

Input type or value, and click 'Search' button:

Table5 Metric male class2 screw tolerance
SizeMax
[mm]
Min
[mm]
Max
[mil]
Min
[mil]
M32.9802.874117.3113.1
M43.9783.838156.6151.1
Table6 Load-resistant temperature[1]
Material°C
pc137-142
pom110-120
nylon65-85

Ref

  1. plastic characteristics in JP
  2. Pan head screw with cross hole and built-in sems washer in JP
  3. RoHS compliant chromic oxide in JP
  4. Hirosugi net in JP
  5. insert nut in JP

Remark

JIS actual screw is short nearly less than 0.5
Plating Corrosion resistance in JP