screws › socket head cap screws
NAS1352-4-20
Socket Head Cap Screw
Description
Fastener Length: 1-9/32", Thread: 1/4-20, Head Width: 3/16", Thread Length: 1 in
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 1.234 inches and 1.281 inches |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.365 inches and 0.375 inches |
| Head Height | Between 0.244 inches and 0.250 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Material | Steel |
| Material Specification | 66 federal standard single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 130000 pounds per square inch |
| Specification Data | 80205-nas1352 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 1.000 |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 1/4 |
| Width Across Flats | Between 0.187 inches and 0.190 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 NAS1352-4-20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error