screws › machine screws
3M925C4-9A
Screw
Description
Fastener Length: 1-1/32", Thread: 1/4-28, Thread Length: 31/64"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 1.016 inches minimum and 1.046 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.552 inches minimum and 0.572 inches maximum |
| Head Diameter | 0.5018 inches minimum and 0.5066 inches maximum |
| Head Height | 0.0713 inches minimum and 0.0733 inches maximum |
| Head Style | Flat countersunk undercut |
| Internal Drive Style | High-torque |
| Length | 1 1/32 |
| Material | Steel |
| Material Specification | Ams 5629 assn std single material response |
| Part Name Assigned By Controlling Agency | Screw,close tolerance-assembly, 100 degree c'sunk sealing head, hi-torque, crew (125 ksi fsu), ivd aluminum coated |
| Special Features | Furnished with oneo ring |
| Surface Finish | 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Aluminum and chromate |
| Surface Treatment Specification | Mil-c-83488 ty 2 cl 3 mil spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.444 inches minimum and 0.494 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| 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
No interchangeable or dimensionally similar parts are on record for 3M925C4-9A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error