screws › socket head cap screws
MS16997-13
Hexagon Socket Cap Screw
Description
MS 16997-13 Hexagon Socket Cap Screw
Specifications
| Alternate Part Number | Possible NAS1352-04-12P |
|---|---|
| Country of Origin | USA |
| Drilling | Undrilled Head |
| Fastener Length | Between 0.734 inches and 0.766 inches |
| Finish | Cadmium ll |
| Hardness Rating | Between 36 rockwell c and 45 rockwell c |
| Head Angle | 100 ? |
| 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 |
| Length | 3/4 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 00-978-9345 |
| NSN | 5305-00-978-9345 |
| Screw Material | Steel |
| Screw Surface Treatment | Cadmium and chromate |
| Size | 4-40 |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.734 inches and 0.766 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 | 0.002 lb |
| Width Between 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 MS16997-13 — functionally equivalent.
- NAS1352-04-12P Listed alternate #4-40 · 3/4 in · Flat chamfer · Steel
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Catalog data updated 2026-07-05. Report a data error