8.8/12.9 High-Strength Screws, Alloy Steel

High-strength screws in 8.8 and 12.9 alloy steel are grouped here for quick selection across common industrial fastening needs.

This collection covers multiple screws and matching hardware in metric sizes and grades already shown on the page.

Use the product titles to compare head style, finish, thread options, and size range before opening each item.

If you need a specific fit, check whether the part is a socket type, external hex style, set screw, or threaded rod.

A screwdriver may suit some applications, while hex tools are required for many socket and cap screw designs in this range.

Choosing high-strength screws

Choose by grade first, then by diameter, length, and head form to match your assembly and load requirements.

Some buyers may also compare these parts with drywall screws, but this collection focuses on alloy steel fasteners.

For detailed dimensions, available variants, and finish options, open the relevant product page from the list below.

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