bolts › machine bolts
BB302-5-2
Blindbolt
Description
Fastener Length: 25/64", Thread: 4-40, Thread Length: 1/4"
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 0.378 inches minimum and 0.398 inches maximum |
| Head Diameter | 0.223 inches minimum and 0.227 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 25/64 |
| Material | Steel |
| Part Name Assigned By Controlling Agency | Navy special project |
| Screw Material | Steel comp 431 |
| Screw Material Specification | Qq-s-763 fed spec single material response |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.274 |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for BB302-5-2. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error