Made in USA 4003M07F16 Captive Screws; System of Measurement: Inch; Drive Type: Slotted; Thread Size: #4-40; Material: Stainless Steel; Finish: Uncoated; Material Grade: 18-8; Head Diameter: 0.3125 in; 5/16 in; Head Height: 0.3130 in; Standards: QQ-S