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MS16997-2
1/4 Inch Length MS16997 Undrilled Socket Head Screw
Description
Fastener Length: 1/4", Thread: 2-56, Head Width: 5/64", Thread Length: 7/32"
Specifications
| Alternate Part Number | NAS1352-02-4P |
|---|---|
| Country of Origin | USA |
| Drilling | Undrilled Head |
| Drive Style | Hexagon |
| Fastener Length | 0.250 |
| Finish | Cadmium ll |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.134 inches and 0.140 inches |
| Head Height | Between 0.083 inches and 0.086 inches |
| Head Style | Flat chamfer |
| Head Type | Socket |
| Industry Standards/Certification | MS16997 |
| Internal Drive Style | Hexagon |
| Length | 1/4 |
| 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 |
| Size | 2-56 |
| Sold In | Per Package |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 3 federal specification all treatment responses type 2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.086 |
| Thread Direction | Right-hand |
| Thread Length | 0.230 |
| Thread Qty | 56 |
| Thread Qty Per Inch (tpi) | 56 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 0.0860-56, 2 |
| Thread Type | N.C. - Coarse |
| Weight | .005 lb |
| Width Across Flats | Between 0.078 inches and 0.079 inches |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS16997-2 — functionally equivalent.
- NAS1352-02-4P Listed alternate #2-56 · 1/8 in · Flat chamfer · Steel
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Catalog data updated 2026-07-05. Report a data error