screws › machine screws
S8806-440-5
Screw
Description
Fastener Length: 5/16", Thread: 4-40, Thread Length: 1/4"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.281 inches minimum and 0.312 inches maximum |
| Head Diameter | 0.191 inches minimum and 0.225 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type ii |
| Length | 5/16 |
| Material | Steel |
| Min. Tensile Strength (psi) | 60000 pounds per square inch |
| Nondefinitive Specification/Std Data | 3 type and 3c style |
| Screw Material | Steel comp 1010 |
| Screw Material Specification | 66 fed std single material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416,type 2,class 3 fed spec single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.182 inches minimum and 0.263 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| Thread Size | 4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- S8806-440-4
- S8806-440-5
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS24693-B3 MS #4-40 · 5/16 in · Flat countersunk
- MS24693-C3B MS #4-40 · 5/16 in · Flat countersunk · Steel
- MS24693S3 MS #4-40 · 5/16 in · Flat countersunk · Steel
- NAS1102E04-5 NAS #4-40 · 5/16 in · Flat countersunk · Iron
- NAS514P440-5B NAS #4-40 · 5/16 in · Flat countersunk · Steel
- NAS514P440-5P NAS #4-40 · 5/16 in · Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error