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
≥ Ø10 to ≤ Ø30
Note: Some fettling may be required after galvanizing to enable parts to be free moving.
Figure 34 – Moving Parts – Swinging Gate