bolts › internal wrenching bolts
MS20005-20
Bolt
Description
Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Fastener Length | 1.797 inches minimum and 1.827 inches maximum |
| Features | Internal Wrenching |
| Grip | 1.250 in |
| Grip Tolerance | ±0.010 in |
| Hardness Rating | 34.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Diameter | 0.521 inches minimum and 0.531 inches maximum |
| Head Height | 0.312 |
| Head Style | Bevel-conical |
| Head Type | Key Locking |
| Industry Standards/Certification | MS20005 |
| Internal Drive Style | Hexagon |
| Length | 1 13/16 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-362-0710 |
| NSN | 5306-01-362-0710 |
| Suggested Nuts for the Bolts | 42FLW |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,cl 2,ty 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.521 inches minimum and 0.531 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4, 5/16-24 |
| Total Length | 1.812 in |
| Weight | 0.05 lb |
| Width Across Flats | 0.219 inches minimum and 0.221 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS20005-20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error