- Brand: ZagoSystem of Measurement: Unified (inch)Mil-Spec: NoHead Type: PanO-Ring Material: Silicone RubberThread Size: 3-48Length: 7/16"Material: Stainless SteelFinish: PlainLocking Element: NoneDrive Type: SlottedThread Fit: Class 2AThread Type: UNCRoHS Compliant: Yes