Product Description
10-24 UNC A2 Stainless Steel Countersunk Socket Set Screws
These 10-24 UNC countersunk socket set screws combine an internal hexagon drive with a flat countersunk head, allowing the screw to sit flush with the surrounding surface when installed into a correctly prepared countersink.
Manufactured from A2 stainless steel, they provide good general-purpose corrosion resistance for engineering, fabrication, machinery, automotive and maintenance applications. The 10-24 UNC thread has 24 threads per inch and must not be confused with the finer 10-32 UNF thread.
Product specifications
- Thread size: 10-24 UNC
- Nominal size: No.10 imperial thread
- Thread pitch: 24 threads per inch
- Material: A2 stainless steel
- Head style: Flat countersunk socket head
- Countersink pattern: 82-degree inch-series pattern
- Drive type: Internal hexagon or Allen drive
- Available lengths: 3/8", 5/8", 3/4", 1", 1 1/4" and 1 1/2"
- Available pack sizes: 5, 10, 20, 50, 100, 250, 500 and 1,000
Related categories and technical information
- Browse UNC countersunk socket screws
- Browse all countersunk socket screws
- View the Metric, UNC, UNF and BSP thread data guide
- How to measure a bolt or screw
- A2 versus A4 stainless-steel guide
Specifications are provided as a guide. If a dimension, material property or formal standards compliance is critical to your application, please contact us for confirmation before ordering.

| A | B | C | D | E | F |
| 10-24 | 1 1/2" | * | * | * | 24 |
| 10-24 | 1 1/4" | * | * | * | 24 |
| 10-24 | 1" | * | * | * | 24 |
| 10-24 | 3/4" | * | * | * | 24 |
| 10-24 | 3/8" | * | * | * | 24 |
| 10-24 | 5/8" | * | * | * | 24 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.