screws › socket head cap screws
NAS1352C5-20
Socket Head Cap Screw
Description
Fastener Length: 1-1/4", Thread: 1/4-18, Head Width: 1/4", Thread Length: 1-1/8", NAS1352 series screw
Specifications
| Fastener Length | 1.210 inches minimum and 1.250 inches maximum |
|---|---|
| Hardness Rating | 80.0 rockwell b minimum |
| Head Diameter | 0.457 inches minimum and 0.469 inches maximum |
| Head Height | 0.306 inches minimum and 0.312 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1 1/4 |
| Material | CRES |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Specification Data | 80205-nas1352 professional/industrial association standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 1.125 inches minimum |
| Thread Qty | 18 |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series Designator | UNRC |
| Thread Size | 1/4 |
| Width Across Flats | 0.250 inches minimum and 0.253 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1352C5-12
- NAS1352C5-14
- NAS1352C5-16
- NAS1352C5-20
- NAS1352C5-28
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.
- NAS1352C5-28 NAS 1/4-18 · 0.073 in · Flat chamfer · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error