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MS16997-30L
Military Standard Machine Screw
Description
Fastener Length: 1/4", Thread: 8-32, Head Width: 9/64", Thread Length: 1/4
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 0.219 inches and 0.250 inches |
| Hardness Rating | 38.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.262 inches and 0.270 inches |
| Head Height | Between 0.159 inches and 0.164 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1/4 |
| Locking Feature | Patch threads or strip threads |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 155000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| 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 | 0.164 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.157 inches and 0.250 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 8 |
| Width Across Flats | Between 0.1406 inches and 0.1426 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS16997-30L. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error