ASME/ANSI B18.21.3-1-2008
Double coil helical spring lock washers for wood structures-Table 1
ASME/ANSI B18.21.3-2-2008
Double coil helical spring lock washers for wood structures-Table 2
ASME/ANSI B18.21.1-1-1999
Regular helical spring lock washers-Table1
ASME/ANSI B18.21.1-2-1999
Heavy helical spring lock washers-Table2
ASME/ANSI B18.21.1-3-1999
Extra-duty helical spring lock washers-Table3
ASME/ANSI B18.21.1-4-1999
High-collar helical spring lock washers-Table4
ASME/ANSI B18.21.3-1-2013
Double coil helical spring lock washers for wood structures-Table 1
ASME/ANSI B18.21.3-2-2013
Double coil helical spring lock washers for wood structures-Table 2
ASME/ANSI B18.21.3-1-2017
Double coil helical spring lock washers for wood structures-Table 1
ASME/ANSI B18.21.3-2-2017
Double coil helical spring lock washers for wood structures-Table 2
ASME/ANSI B18.21.1-1-2005
Regular helical spring lock washers-Table1
ASME/ANSI B18.21.1-2-2005
Heavy helical spring lock washers-Table2
ASME/ANSI B18.21.1-3-2005
Extra-duty helical spring lock washers-Table3
ASME/ANSI B18.21.1-4-2005
High-collar helical spring lock washers-Table4
ASME/ANSI B18.21.1-2-1983
Regular helical spring lock washers-Table2
ASME/ANSI B18.21.1-3-1983
Heavy helical spring lock washers-Table3
ASME/ANSI B18.21.1-4-1983
Extra-duty helical spring lock washers-Table4
ASME/ANSI B18.21.1-5-1983
High-collar helical spring lock washers-Table5
ASME/ANSI B18.21.1-2-1972
Regular helical spring lock washers-Table2
ASME/ANSI B18.21.1-3-1972
Heavy helical spring lock washers-Table3