2181-440-AL,HEX STANDOFFPLAIN ALUMINUM5/16 H
2181-440-AL-7,HEX STANDOFFCLEAR IRIDITE5/16 HE
2181-440-B,HEX STANDOFFPLAIN BRASS5/16 HEX
2181-440-B-5,HEX STANDOFFNICKEL 5/16 HEX X 1-
2181-440-N,HEX STANDOFFNO FINISH - NYLON5/1
2181-440-S,HEX STANDOFFPLAIN STEEL5/16 HEX
2181-440-SS,HEX STANDOFFPLAIN STAINLESS STEE
2181-440-SS-20,HEX STANDOFFPASSIVATE5/16 HEX X