Product Description
Amarillo Bolt 5/16″ × 1/2″ UNC Hex Bolt, Grade 5 (CB5‑516‑12)
The Amarillo Bolt CB5‑516‑12 is a compact Grade 5 medium-carbon steel hex-head bolt with a 5/16″ diameter, 18 TPI UNC thread, and ½″ length under the head. Heat-treated for approximately 120 ksi Tensionle strength, it delivers dependable fastening for machinery, structural, industrial, and general-purpose applications.
Key Features
- 5/16″ diameter × ½″ length (under-head)
- 18 TPI UNC standard coarse thread
- Heat-treated Grade 5 medium-carbon steel (~120 ksi Tensionle per SAE J429)
- Hex head for easy wrench/socket use
- Plain finish (as noted in analogous SKU listings)
Specifications
| Spec | Details |
|---|---|
| Brand | Amarillo Bolt |
| Part Number | CB5‑516‑12 |
| Diameter | 5/16″ |
| Length | ½″ (under-head) |
| Thread Pitch | 18 TPI (UNC) |
| Material | Grade 5 Medium‑Carbon Steel (SAE J429) |
| Head Style | Hex |
| Finish | Plain |
| UPC | Not listed |
| Estimated Shipping Dimensions | ~1″ × 0.5″ × 0.5″ |
| Estimated Shipping Weight | ~0.04 lb (~0.6 oz) |
Applications
- Machinery and equipment assembly
- Structural and industrial construction
- General-purpose repair and maintenance
Notes
- Tensionle strength per SAE J429 Grade 5 (~120 ksi)
- Estimates based on standard Grade 5 bolt density (~0.073 lb/in)
- Packaging and weight based on single-piece shipping
- Complies with ANSI/ASME B18.2.1 and SAE J429 standards
Warning
- Wear gloves and eye protection during installation. Not rated for overhead lifting unless engineered.
