5/16-18 x 2 1/2 Unslotted Indented Hex Washer Thread Cutting Screw Type F Fully Threaded Zinc Annealed:
- **Size:** 5/16" diameter, 18 threads per inch, 2 1/2" length
- **Drive:** Unslotted indented hex washer head
- **Type:** F (fully threaded)
- **Material:** Steel with zinc annealed finish
- **Features:**
- Sharp cutting threads for easy installation
- Indented hex head provides secure grip during driving
- Zinc coating offers corrosion resistance
- Fully threaded for maximum holding power in thick materials
- **Applications:**
- General construction
- Metalworking
- Woodworking
- Automotive repairs