Comparison : Item # 4-40 x 1/8 PASS Full-Dog, 4-40 Diameter and 1/8 Inch (in) Length Full Dog Point Alloy Steel Socket Head Set Screw
Item # 4-40 x 3/16 PASS Full-Dog, 4-40 Diameter and 3/16 Inch (in) Length Full Dog Point Alloy Steel Socket Head Set Screw
Item # 4-40 x 1/4 PASS Full-Dog, 4-40 Diameter and 1/4 Inch (in) Length Full Dog Point Alloy Steel Socket Head Set Screw
Item # 4-40 x 5/16 PASS Full-Dog, 4-40 Diameter and 5/16 Inch (in) Length Full Dog Point Alloy Steel Socket Head Set Screw
Item # 4-40 x 3/8 PASS Full-Dog, 4-40 Diameter and 3/8 Inch (in) Length Full Dog Point Alloy Steel Socket Head Set Screw