1639T-256-AL-6,ROUND STANDOFFGOLD IRIDITE3/16 R
1639T-256-AL-7,ROUND STANDOFFCLEAR IRIDITERD FE
1639T-256-B,ROUND STANDOFFPLAIN BRASS3/16 RD
1639T-256-N,ROUND STANDOFFNO FINISH - NYLON3
1639T-256-S,ROUND STANDOFFPLAIN STEEL3/16 RD
1639T-256-SS,ROUND STANDOFFPLAIN STAINLESS ST
1639T-440-AL,ROUND STANDOFFPLAIN ALUMINUM3/16
1639T-440-B,ROUND STANDOFFPLAIN BRASS3/16 RD