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MS35307-311
1/4-20X1 3/8 MS35307 Military Hex Head Cap Screw Coarse Thred 300 Series Stainless Steel DFAR
Description
MS 35307-311 Hexagon Head Cap Screw
Specifications
| Diameter | 1/4 |
|---|---|
| Fastener Length | 1.312 inches minimum and 1.375 inches maximum |
| Finish | Passivate, Plain |
| Full Size | 1/4-20 x 1 3/8 |
| Hardness Rating | 80.0 rockwell b minimum |
| Head Height | 0.150 inches minimum and 0.163 inches maximum |
| Head Style | Hexagon Head |
| Head Type | Hex |
| Length | 1 3/8 |
| Material | CRES |
| MilspecPart | MS35307 |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Nondefinitive Specification/Std Data | 2 type and 10p style |
| Size | 1/4-20 |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.750 inches minimum and 0.938 inches maximum |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNC |
| Thread Type | N.C. - Coarse, UNC |
| Threads Per Inch | 20 |
| U.O.M. | Imperial |
| Width Between Flats | 0.428 inches minimum and 0.438 inches maximum |
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.
- MS35307-310 MS 0.073 in · Hexagon Head · CRES
- MS35307-313 MS 0.073 in · Hexagon Head · CRES
- MS90725-12 MS 0.073 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error