Comparison : Item # RS10-24C, #10-24 Unified National Coarse (UNC) x 9/16 Inch (in) Deep Thread Size (T), Stainless Steel Round Swivel Tapped Sleeve
Item # RS10-24P, #10-24 Unified National Coarse (UNC) x 9/16 Inch (in) Deep Thread Size (T), Zinc Plated Carbon Steel Round Swivel Tapped Sleeve
Item # RS10-32C, #10-32 Unified National Fine (UNF) x 9/16 Inch (in) Deep Thread Size (T), Stainless Steel Round Swivel Tapped Sleeve
Item # RS10-32P, #10-32 Unified National Fine (UNF) x 9/16 Inch (in) Deep Thread Size (T), Zinc Plated Carbon Steel Round Swivel Tapped Sleeve
Item # RS25-20C, 1/4-20 Unified National Coarse (UNC) x 3/4 Inch (in) Deep Thread Size (T), Stainless Steel Round Swivel Tapped Sleeve