Specifications
| Product Number | VMF-01030-C |
| Thread Size | 1/4"-20 |
| Length | 3" |
| Threading | Fully Threaded |
| Countersink Angle | 82° |
| Flat Head Profile | Standard |
| Head Diameter | 0.477" |
| Head Height | 0.153" |
| Drive Style | Square |
| Drive Size | No. 3 |
| Material | Zinc-Plated Steel |
| Hardness | Rockwell B70 |
| Tensile Strength | 60,000 psi |
| Screw Size Decimal Equivalent | 0.250" |
| Thread Type | UNC |
| Thread Spacing | Coarse |
| Thread Fit | Class 2A |
| Thread Direction | Right Hand |
| Head Type | Flat |
| System of Measurement | Inch |
| Specifications Met | ASME B18.6.3 |
| RoHS | RoHS 3 (2015/863/EU) compliant |
![Flat Head Machine Screw Full Thread Zinc 1/4-20 * 3" [Square Drive]](http://rjm-fasteners.com/cdn/shop/files/Image_Jul_2__2025__11_03_14_AM-removebg-preview.png?v=1751468871&width=1445)