For locating within a slot or hole
PART # THREAD DIA. HT. A B R20-502-SLRP 1/4"-20 .50" 2.0" .160" .25" R20-752-SLRP 1/4"-20 .75" 2.0" .312" .375"
PART # THREAD DIA. HT. A B R8-1350-SLRP M8 13mm 50mm 4mm 6mm R8-1950-SLRP M8 19mm 50mm 8mm 10mm