| NAVAL SEA SYSTEMS COMMAND | 53711 |
| MCMASTER-CARR SUPPLY COMPANY | 39428 |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.438 INCHES NOMINAL |
| FASTENER LENGTH | 0.438 INCHES NOMINAL |
| HEAD STYLE | KNURLED NO. 4 |
| HEAD DIAMETER | 0.516 INCHES NOMINAL |
| HEAD HEIGHT | 0.438 INCHES NOMINAL |
| POINT STYLE | FLAT |
| END ITEM IDENTIFICATION | STERN RAMP AS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | RETRACTABLE CAPTIVE SCREW |
| An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified). |
