screws › machine screws
HT1029A4-5
Screw
Description
Fastener Length: 13/16", Thread: 1/4-28, Thread Length: 1/2"
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 0.765 inches minimum and 0.812 inches maximum |
| Grip Diameter | 0.2490 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.302 inches minimum and 0.322 inches maximum |
| Hardness Rating | 24.0 rockwell c minimum and 44.0 rockwell c maximum |
| Head Diameter | 0.502 inches minimum and 0.507 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | High-torque |
| Length | 13/16 |
| Material | Iron |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.443 inches minimum and 0.510 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for HT1029A4-5. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error