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ST3M735-4-15
Bolt
Description
Fastener Length: 1-3/8", Thread: 1/4-28, Thread Length: 21/64"
Specifications
| Distance From Head Largest Bearing Surface To Shank Hole Center | 1.256 inches minimum first hole and 1.286 inches maximum first hole |
|---|---|
| Fastener Length | 1.356 inches minimum and 1.376 inches maximum |
| Grip Diameter | 0.2483 inches minimum and 0.2492 inches maximum |
| Grip Length | 0.938 inches minimum and 0.954 inches maximum |
| Hardness Rating | 36.0 rockwell c minimum and 41.0 rockwell c maximum |
| Head Height | 0.126 inches minimum and 0.141 inches maximum |
| Head Style | Undercut hexagon |
| Length | 1 3/8 |
| Material | Steel |
| Shank Unthreaded Hole Diameter | 9.076 inches minimum first hole and 0.086 inches maximum first hole |
| Special Features | Retaining ring on shank |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq--p-416,type 2,class 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.282 inches minimum and 0.333 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.430 inches minimum and 0.439 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for ST3M735-4-15. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error