screws › socket head cap screws
NAS1352-5-20P
MS16997-81 Socket Head Cap Screw
Description
Length: 1.25", NAS1352 series screw
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 1.210 inches and 1.250 inches |
| Hardness Rating | 38.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.457 inches and 0.469 inches |
| Head Height | Between 0.306 inches and 0.312 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1.25 |
| Material | Steel |
| Min. Tensile Strength (psi) | 170000 pounds per square inch |
| Minimum Yield Strength | 150000 pounds per square inch |
| Specification Data | 80205-nas1352 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty2 cl2 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Fraction | 5/16-18 |
| Thread Length | 1.125 |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series | UNRC |
| Thread Series Designator | UNRC |
| Width Across Flats | Between 0.250 inches and 0.253 inches |
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 NAS1352-5-20P. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error