bolts › machine bolts
NAS148-28
Bolt
Description
Fastener Length: 1-3/4", Thread: 1/2-20, Head Width: 1/2", Thread Length: 53/64"
Specifications
| Fastener Length | 1.735 inches minimum and 1.765 inches maximum |
|---|---|
| Head Diameter | 0.802 inches minimum and 0.813 inches maximum |
| Head Height | 0.460 |
| Head Style | Bevel-conical |
| Internal Drive Style | Hexagon |
| Length | 1 3/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas148 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,type 2 cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | 0.788 inches minimum and 0.838 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNJF |
| Thread Size | 1/2 |
| Width Across Flats | 0.500 inches minimum and 0.503 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS148-28. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error