Socket Button Head Screws - ISO 7380, Stainless Steel, Grade 18/8 - (A2) 304, M5 x 25 MM

Overview

ISO 7380 defines a hexagon socket button head screw with a low rounded head. The button head provides a neat appearance and a broad bearing surface, while the internal hex drive allows installation where external spanner clearance is not available.

This selected size is specified with diameter M5, length 25 mm, thread M5, pitch 0.8 mm.

Sold in multiples of '100 pieces. 1 Box = '100 pieces.

Material, Grade & Strength

A2 stainless steel, commonly associated with 304 stainless, provides good general corrosion resistance for outdoor, clean industrial and food-related environments. Stainless threads can gall, so suitable anti-seize may be required.

Finish & Corrosion Protection

Corrosion resistance is provided by the stainless material itself rather than a plated coating.

Typical Uses

ISO 7380 button head screws are used on visible assemblies, equipment covers, guards, frames, furniture, panels and light machinery where a low-profile rounded head is preferred.

Technical Tips

• Use the correct hex key or socket bit to avoid rounding the drive.
• Button heads are lower than socket cap screws, so check suitability for high-load joints.
• Use washers where surface protection or load spreading is needed.
• Select stainless or coated finishes for exposed environments.

Frequently Asked Questions

When should a button head be used? Use it where appearance, low profile and internal hex drive access are more important than the higher head strength of a socket cap screw.