screws › machine screws
NAS1100E4-7
Screw
Description
Fastener Length: 7/16", Thread: 1/4-28, Thread Length: 7/16"
Specifications
| Fastener Length | 0.438 |
|---|---|
| Hardness Rating | 248.0 brinell standard minimum and 321.0 brinell standard maximum |
| Head Diameter | 0.473 inches minimum and 0.492 inches maximum |
| Head Height | 0.162 inches minimum and 0.175 inches maximum |
| Head Style | Pan Head |
| Internal Drive Style | Torque set |
| Length | 7/16 |
| Material | Iron |
| Min. Tensile Strength (psi) | 140000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams 5735 assn std single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Mil-s-5002 mil spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.367 inches minimum and 0.438 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
Other sizes
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Catalog data updated 2026-07-05. Report a data error