Moving parts

Where articles require free movement of parts, e.g. drop handles, hinges, shackles, shafts or spindles:

  • A radial clearance should be applied to the part to allow for the galvanized coating thickness. Recommended minimum radial clearances are shown in Table 5.
  • Parts need to be disassembled and galvanized separately.
Table 5: Recommended minimum radial clearance before galvanizing

Shaft or spindle size
(mm)

Minimum radial
clearance
(mm)

< Ø10

1.0

≥ Ø10 to ≤ Ø30

2.0

> Ø30

2.5

Note: Some fettling may be required after galvanizing to enable parts to be free moving.

Figure 34 – Moving Parts – Swinging Gate