screws › socket head cap screws
NAS1351C4H8
Socket Head Cap Screw
Description
Fastener Length: 1/2", Hole Diameter: 3/64", Thread: 1/4-28, Head Width: 3/16", Thread Length: 1/2", NAS1351 series screw
Specifications
| Country of Origin | USA |
|---|---|
| Fastener Length | 0.500 |
| Hardness Rating | 80.0 rockwell b minimum |
| Head Diameter | 0.365 inches minimum and 0.375 inches maximum |
| Head Height | 0.244 inches minimum and 0.250 inches maximum |
| Head Style | Flat chamfer |
| Hole Configuration Style | Round |
| Hole Diameter | 0.047 |
| Hole Quantity | 6 |
| Hole Type | Drilled |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Material | Steel |
| Material Specification | 66 fed std single material response |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| Sold In | EA |
| Specification Data | 80205-nas1351 professional/industrial association standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.500 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Weight | 0.011 lb |
| Width Across Flats | 0.188 inches minimum and 0.190 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS1351C4H8 — functionally equivalent.
- MS24673-9 Listed alternate 28.00-28 · 1/2 in · Flat chamfer · CRES
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Catalog data updated 2026-07-05. Report a data error