screws › socket head cap screws
3176207-C-132
Cap Screw
Description
Fastener Length: 3-1/4", Thread: 1/4-18, Head Width: 1/4", Thread Length: 1-45/64"
Specifications
| Fastener Length | 3.250 |
|---|---|
| Hardness Rating | 38.0 rockwell c minimum and 45.0 rockwell c maximum |
| Head Diameter | 0.457 inches minimum and 0.469 inches maximum |
| Head Height | 0.306 inches minimum and 0.312 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 3 1/4 |
| Locking Feature | Patch threads |
| Material | Steel |
| Min. Tensile Strength (psi) | 170 pounds per square inch |
| Special Features | Critical item hydrogen embrittlement relief required |
| Surface Treatment | Zinc |
| Surface Treatment Specification | Qq-z-325,type 2,class 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 1.710 |
| Thread Qty | 18 |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series Designator | UNC |
| Thread Size | 1/4 |
| Width Across Flats | 0.250 |
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 3176207-C-132. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error