# MarySino M8 x 30 mm Black Oxide Zinc Flanged Bolt (10-Pack), Class 10.9 Alloy Steel Bolt Set

**Brand:** [MarySino](https://shop.coreranger.com/brands/MarySino)
**SKU:** SF-MS-DP00431
**Price:** $9.99 · out of stock
**URL:** https://shop.coreranger.com/product/marysino-m8-x-30-mm-black-oxide-zinc-flanged-bolt-10-pack-class-10-9-alloy-steel-bolt-set-339829617

## Specifications

| Spec | Value |
|---|---|
| Size | M8 |
| Grade | 304 Stainless |
| Model # | SF-MS-DP00431 |
| Internet # | 339829617 |
| Returnable | 90-Day |
| Store SKU # | 1015057370 |
| Thread Style | Coarse Thread |
| Fastener Type | Flange Bolt |
| Fastener Length | 30 mm |
| Fastener Plating | Black Oxide Zinc |
| Package Quantity | 10 |
| Fastener Material | Steel |
| Measurement System | Metric |

## Description

These Class 10.9 flanged hex head bolts are made of premium alloy steel with a black zinc plated finish, providing superior strength, wear resistance, and corrosion protection. Designed for reliable fastening in high-stress environments, each bolt features an external flange for better load distribution and a serrated underside that prevents loosening under vibration.The hex drive design allows easy tightening with standard tools, ensuring a firm and secure connection in mechanical assemblies, automotive repairs, and construction applications. Available in multiple metric sizes - M6 x 25mm, M8 x 16mm, M8 x 20mm, M8 x 25mm, and M8 x 30mm - these bolts meet industrial standards for durability and precision fit. Each 10-piece set is packed in a sturdy reusable container for convenient storage and quick access, ideal for professionals and DIY users requiring dependable fastening performance in both indoor and outdoor environments.

• Class 10.9 alloy steel ensures high-stress durability.
• Serrated flange design prevents loosening from vibrations.
• Sturdy reusable case simplifies storage and organization.