screws › socket head cap screws
NAS1351-3-8P
MS16998-27 Socket Head Cap Screw
Description
Length: 1/2", thread: 10-32, socket head, cadmium plated alloy steel, NAS1351 series screw
Specifications
| Alternate Part Number | MS16998-27 |
|---|---|
| Country of Origin | USA |
| Drilling | Undrilled Head |
| Drive Style | Hexagon |
| Fastener Length | 0.500 |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.303 inches and 0.312 inches |
| Head Height | Between 0.185 inches and 0.190 inches |
| Head Style | Flat chamfer |
| Head Type | Socket |
| Industry Standards/Certification | NAS1351 |
| Internal Drive Style | Hexagon |
| Length | .50, 1/2 in |
| 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 |
| NIIN | 00-995-2639 |
| NSN | 5305-00-995-2639 |
| Sold In | Per Package |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 2 federal specification single treatment response type 2 ams-qq-p-416 |
| Thread | 10-32 |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Fraction | 10-32 |
| Thread Length | Between 0.454 inches and 0.500 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 0.1900-32, 10 |
| Type | Fine Thread |
| Weight | .005 lb |
| Width Across Flats | Between 0.156 inches and 0.159 inches |
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 NAS1351-3-8P — functionally equivalent.
- MS16998-27 Listed alternate #10-32 · 1/2 in · Flat chamfer · Steel
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error