M1278-3005-S,METRIC HEX STANDOFFPLAIN STEEL4.
M1278-3005-SS,METRIC HEX STANDOFFPLAIN STAINLE
M1278-3005-SS-20,METRIC HEX STANDOFFPASSIVATE4.5M
M1279-2545-AL,METRIC HEX STANDOFFPLAIN ALUMINU
M1279-2545-B,METRIC HEX STANDOFFPLAIN BRASS4.
M1279-2545-N,METRIC HEX STANDOFFNO FINISH - N
M1279-2545-S,METRIC HEX STANDOFFPLAIN STEEL4.
M1279-2545-SS,4.5MM HEX X 46MM X M2.5 THD