Product Description
Amarillo Bolt ½″ × 8″ UNC Cap Screw, Grade 5 (CB5‑12‑8)
The Amarillo Bolt CB5‑12‑8 is a Grade 5 UNC cap screw with a ½″ diameter and 8″ length, crafted from medium-carbon steel. Featuring a washer-faced head for clean assembly and superior clamping power, this cap screw is ideal for heavy-duty machinery, structural frameworks, and industrial fastening applications.
Key Features
- ½″ diameter × 8″ length (under-head)
- 13 TPI UNC thread for compatibility with standard fastenings
- Grade 5 medium-carbon steel—heat-treated for high Tensionle strength (~120 ksi)
- Washer-faced cap screw design for even load distribution
- Plain finish; plating or coated options available
Specifications
| Specification | Details |
|---|---|
| Brand | Amarillo Bolt |
| Part Number | CB5‑12‑8 |
| Product Type | UNC Cap Screw |
| Diameter | ½″ |
| Length | 8″ (under-head) |
| Thread Pitch | 13 TPI (UNC) |
| Material | Grade 5 Medium‑Carbon Steel (ASTM A307) |
| Finish | Plain |
| Estimated Shipping Dimensions | ~8.5″ × 0.75″ × 0.75″ |
| Estimated Shipping Weight | ~0.7 lb (~11 oz) |
Applications
- Machinery and equipment assembly
- Structural frameworks and bolted connections
- Heavy‑duty industrial and maintenance use
Notes
- Estimated weight based on standard ½″‑13 Grade 5 UNC cap screw (~0.087 lb/in)
- Cap screw includes washer-faced head for even load distribution
- Conforms to ANSI/ASME B18.2.1 and SAE J429 Grade 5 standards
- Finish, Tensionle ratings, and packaging finalized upon order
Warning
- Wear gloves and eye protection during installation. Not approved for overhead lifting unless engineered.
