01 March 2005
NAVAIR 01-1A-509-3
TM 1-1500-344-23-3
TO 1-1-689-3
Table 6-3. Hardware for Bolt and Nut Bonding or Grounding to Flat Surface
Structure
Screw or Bolt
Lockwasher
Washer A
Washer B
Washer C
& Nut
Aluminum Terminal and Jumper
Aluminum
Cadmium Plated
Cadmium
Cadmium Plated
None
Cadmium Plated
Steel
Plated Steel
Steel
Steel
or Aluminum
or Aluminum
Magnesium
Cadmium Plated
Cadmium
Magnesium Alloy
Magnesium *
Cadmium Plated
Steel
Plated Steel
Alloy
Steel
or Aluminum
Steel,
Cadmium Plated
Cadmium
Cadmium Plated
Cadmium Plated
Cadmium Plated
Cadmium
Steel
Plated Steel
Steel
Steel
Steel *
Plated
Steel,
Corrosion
Corrosion
Cadmium Plated
Cadmium Plated
Cadmium Plated
Corrosion
Resistant Steel
Resistant
Steel
Steel
Steel
Resistant
Steel
Tinned Copper Terminal and Jumper
Aluminum
Cadmium Plated
Cadmium
Cadmium Plated
Aluminum Alloy
Cadmium Plated
Steel
Plated Steel
Steel
Steel
Magnesium
Caution: Do not connect copper to magnesium.
Steel,
Cadmium Plated
Cadmium
Cadmium Plated
Cadmium Plated
Cadmium Plated
Cadmium
Steel
Plated Steel
Steel
Steel
Steel
Plated
Steel,
Cadmium Plated
Cadmium
Corrosion Resistant
Corrosion
Cadmium Plated
Steel or
Plated Steel
Steel
Resistant Steel
Steel or
Corrosion
Resistant
Corrosion
Corrosion Resistant
Resistant Steel
Steel
* When not available, use aluminum alloy
Figure 6-10. Bolt and Nut Bonding or
Grounding to Flat Surface
