Product Description
Amarillo Bolt 5/8″ × 3½″ UNC Hex Bolt, Grade 5, Zinc (CB5‑58‑312)
The Amarillo Bolt CB5‑58‑312 is a 5/8″‑11 UNC Grade 5 hex-head bolt with a 3½″ length under the head. Zinc-plated for corrosion protection, it’s built for strength (~120 ksi Tensionle) in structural, industrial, agricultural, and general-purpose applications.
Key Features
- 5/8″ diameter × 3½″ length (under-head)
- 11 TPI UNC coarse thread
- Grade 5 medium-carbon steel (~120 ksi Tensionle strength, SAE J429)
- Zinc-plated finish
- Hex head—standard wrench size ~15/16″
Specifications
| Specification | Details |
|---|---|
| Brand | Amarillo Bolt |
| Part Number | CB5‑58‑312 |
| Diameter | 5/8″ |
| Length | 3½″ (under-head) |
| Thread Pitch | 11 TPI (UNC) |
| Material | Grade 5 Medium‑Carbon Steel (SAE J429) |
| Finish | Zinc-plated |
| UPC | Not listed |
| Estimated Shipping Dimensions | ~4″ × 1″ × 1″ |
| Estimated Shipping Weight | ~0.85 lb (~14 oz) |
Applications
- Heavy machinery & equipment assembly
- Structural bolting and industrial construction
- Agricultural and general fastening use
Notes
- SKU confirmed via third-party listing :contentReference[oaicite:3]{index=3} showing CB558312AMB (no UPC).
- Grade 5 Tensionle specification (~120 ksi) based on SAE J429 standard.
- Zinc finish and wrench size aligned with Amarillo Bolt’s Grade 5 UNC hex bolt patterns.
Warning
- Wear gloves and eye protection during installation. Always torque to application requirements.
