Description: Dimensions: Thread Length .312 INCH | Product Feature Length .5 INCH | Thread Length 7.92 MM | Product Feature Length 12.7 MM | Mechanical Attachment: Thread Size 4-40 UNC | Packaging Features: Packaging Quantity 500 | Packaging Method Kit | Packaging Method Bag | Product Type Features: Connector Hardware Accessory Type Female Screwlock Assembly Kit | Hardware Accessory Function Latching, Locking & Retention |