Diall M8 Hex Carbon Steel Bolt - M8 - Grade 5.8 - L30mm - Pack Of 100

These bolts are constructed from durable carbon steel.

'M8' refers to the metric thread size, indicating a nominal diameter of 8 millimeters.

Each bolt is 30 millimeters in length.

The zinc plating offers some corrosion resistance, making them suitable for general outdoor use. However, for prolonged exposure to harsh weather, additional protective measures might be advisable.

You will typically need a 13mm hex wrench or socket for M8 bolts.

These bolts are typically Grade 5.8, which is suitable for general engineering and construction applications.

Yes, these bolts are designed to be used with standard M8 nuts and M8 threaded inserts.

Check if the pilot hole is the correct size and free of debris. Ensure you are using an M8 nut or threaded insert. Verify the bolt's threads are not damaged.

Ensure you are using the correct size tool (typically 13mm for M8). The tool or bolt head may be worn; try a different tool or bolt if necessary.

The material may be too soft, or the hole may be too large. Try using a larger washer or a nut with a locking feature. Ensure the bolt length is adequate for the material thickness.

This indicates the zinc plating may be compromised. Clean the affected area gently and consider applying a rust inhibitor or paint for protection, especially if used outdoors.