All Categories > Alloy Steel > Alloy Steel Round Bar > 4140 Alloy Steel Round Bar > Item # 16189 All CategoriesAll Categories Alloy SteelAlloy Steel Alloy Steel Round BarAlloy Steel Round Bar 4140 Alloy Steel Round Bar4140 Alloy Steel Round Bar Item # 16189 Item # 16189, 4140 Alloy Steel Round Bar 161894140 Alloy Steel Round Bar Request Information Email This Page Download PDF Download PDF Printable Page Close Window Unit of Measure Imperial Metric Both Specifications Size N/A 1 15/16 inches Size N/A 1.9375 inches49.2125 mm Material N/A Alloy Steel Shapeform N/A Round Bar