screws › socket head cap screws
MS16997-11
1/2 Inch Length MS16997 Undrilled Socket Head Screw
Description
MS 16997-11 Hexagon Socket Cap Screw
Specifications
| Alternate Part Number | NAS1352-04-8P |
|---|---|
| Country of Origin | USA |
| Drilling | Undrilled Head |
| Drive Style | Hexagon |
| Fastener Length | Between 0.469 inches and 0.500 inches |
| Finish | Cadmium ll |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.176 inches and 0.183 inches |
| Head Height | Between 0.108 inches and 0.112 inches |
| Head Style | Flat chamfer |
| Head Type | Socket |
| Industry Standards/Certification | MS16997 |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 130000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| Size | 4-40 |
| Sold In | Per Package |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 3 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.419 inches and 0.500 inches |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 0.1120-40 |
| Thread Type | N.C. - Coarse |
| Weight | .005 lb |
| Width Across Flats | Between 0.093 inches and 0.095 inches |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS16997-11 — functionally equivalent.
- NAS1352-04-8P Listed alternate 40.00-40 · 1/2 in · Flat chamfer · Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS16995-11 MS 40.00-40 · 1/2 in · Flat chamfer · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error