Comparison : Item # 1SPFBPM-1039SS, 4.6 Millimeter (mm) Dimension K Stainless Steel Metric Press Fit Ball Plunger
Item # 1SPFBPM-1040SS, 5.6 Millimeter (mm) Dimension K Stainless Steel Metric Press Fit Ball Plunger
Item # 1SPFBPM-1041SS, 6.5 Millimeter (mm) Dimension K Stainless Steel Metric Press Fit Ball Plunger
Item # 1SPFBPM-1042SS, 8.5 Millimeter (mm) Dimension K Stainless Steel Metric Press Fit Ball Plunger
Item # 1SPFBPM-1043SS, 12 Millimeter (mm) Dimension K Stainless Steel Metric Press Fit Ball Plunger