screws › socket head cap screws
NAS1351-7-20P
Screw
Description
Fastener Length: 1-1/4", Thread: 7/16-20, Head Width: 3/8", Thread Length: 1-1/4"
Specifications
| Fastener Length | 1.190 inches minimum and 1.250 inches maximum |
|---|---|
| Head Diameter | 0.642 inches minimum and 0.656 inches maximum |
| Head Height | 0.430 inches minimum and 0.437 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1 1/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.438 |
| Thread Direction | Right-hand |
| Thread Length | 1.090 inches minimum and 1.250 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNF |
| Thread Size | 7/16 |
| Width Across Flats | 0.375 inches minimum and 0.379 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1351-7-16P
- NAS1351-7-20P
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS1351N7-20 NAS 7/16-20 · 0.073 in · Flat chamfer · Iron
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Catalog data updated 2026-07-05. Report a data error