screws › socket head cap screws
MS16997-20L
Military Standard Socket Head Cap Screw
Description
Fastener Length: 1/2", Thread: 6-32, Head Width: 7/64", Thread Length: 1/2"
Specifications
| Fastener Length | Between 0.469 inches and 0.500 inches |
|---|---|
| Hardness Rating | 38.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.218 inches and 0.226 inches |
| Head Height | Between 0.134 inches and 0.138 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Locking Feature | Patch threads or strip threads |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 1550000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| Surface Finish | 32.0 microinches threads, 63.0 microinches grip, 63.0 microinches surface of head |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 class 3 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.407 inches and 0.500 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 6 |
| Width Across Flats | Between 0.1094 inches and 0.1111 inches |
Cross-reference
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- NAS1352-06LB8P NAS #6-32 · 1/2 in · Flat chamfer · Steel
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Catalog data updated 2026-07-05. Report a data error