screws › machine screws
ST3M506-5-10
Screw
Description
Fastener Length: 1-7/64", Thread: 1/4-24, Thread Length: 1/2"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 1.076 inches minimum and 1.123 inches maximum |
| Head Diameter | 0.461 inches minimum and 0.507 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | High-torque |
| Length | 1 7/64 |
| Material | Steel |
| Material Specification | Ams5629 assn std single material response |
| Shoulder Diameter | 0.342 inches minimum first shoulder and 0.343 inches maximum first shoulder |
| Shoulder Length | 0.615 inches minimum first shoulder and 0.635 inches maximum first shoulder |
| Shoulder Shape | Round first shoulder |
| Special Features | Internal hexagon socket 0.127 in. min and 0.130 in. max width across flats,0.160 in. deep in thread end |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.441 inches minimum and 0.508 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
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.
- ST3M506-5-12 Other 1/4-24 · 0.073 in · Flat countersunk · Steel
- ST3M506-5-13 Other 1/4-24 · 0.073 in · Flat countersunk · Steel
- ST3M506-5-9 Other 1/4-24 · 0.073 in · Flat countersunk · Steel
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error