M1373-3506-AL,METRIC HEX STANDOFFPLAIN ALUMINU
M1373-3506-B,METRIC HEX STANDOFFPLAIN BRASS8M
M1373-3506-N,METRIC HEX STANDOFFNO FINISH - N
M1373-3506-S,METRIC HEX STANDOFFPLAIN STEEL8M
M1373-3506-SS,METRIC HEX STANDOFFPLAIN STAINLE
M1373-4007-AL,METRIC HEX STANDOFFPLAIN ALUMINU
M1373-4007-B,METRIC HEX STANDOFFPLAIN BRASS8M
M1373-4007-N,METRIC HEX STANDOFFNO FINISH - N