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Hardware for Joining Like or UnlikeMetals
KEY:
Si-Br—Silicon Bronze GS—Galvanized Steel
SS—Stainless Steel
AL—Aluminum
(1) denotes preferred hardware usage.
NOTE:
Contact sealant should be used between Aluminum to
Aluminumand Aluminum to Copper connections.
Aluminum Connectors
Aluminum Connector (Clamping Hardware)
Aluminum To Aluminum Assemblies
(Tongue Mounting Hardware
As Assembled At Factory)
Aluminum To Copper Assemblies
(Tongue Mounting Hardware)
Bronze Connectors
Bronze Connector (Clamping Hardware)
Bronze To Copper Assemblies (Tongue Mounting Hardware)
RecommendedTorqueValues
for Bolted Connectors
T
ightening Force Applied to Hardware: Following are
ANDERSON’S recommended torque values applying to all
clamping hardware used in connectors and fittings.
NOTE:
Care should be taken to prevent sealant from being applied to
hardware since torque values will be affected if the hardware
becomes lubricated with sealant.
*Reduced torque limits apply when replacing aluminum clamping hard-
ware with steel in bolted aluminum connectors.
Bolt Dia.
RecommendedTorque
Non-Lubricated Steel
&SiliconBronzeHardware
lb. inches
RecommendedTorque
LubricatedHardware
&AluminumHardware
lb. inches*
5/16”
3/8”
1/2”
5/8”
3/4”
180
240
480
660
840
120
168
300
480
720
2024-T4, 2014-T4 or equal, with #205 Alumilite Finish
Aluminum-Bolt
7075-T6 Aluminum Lockwasher, Etch Finish
6061-T6 Plain Aluminum Nut, Wax Finish
2024-T4, 2014-T4 or equal, no-oxide coated Aluminum-
Bolt
7075-T6 Aluminum Flatwasher
7075-T6 Aluminum Lockwasher, Etch Finish
6061-T6 Plain Aluminum Nut, Wax Finish
Galvanized Steel Bolt
Galvanized Steel Flatwasher
Stainless Steel Belleville Washer
Galvanized Steel Nut
Aluminum
Copper
Silicon Bronze Bolt
Silicon Bronze Lockwasher
Silicon Bronze Nut
Silicon Bronze Bolt
Silicon Bronze Flatwasher
Silicon Bronze Lockwasher
Silicon Bronze Nut
Bronze
Copper
RecommendedTypes of Hardware and InstallationMounting