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Power Tools Direct£10.79Visit shop Metalmate® Z0318m560080 High Tensile Set Screw Zp M10 X 80Mm (Box 50)
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B&Q£18.52Visit shop B&Q - Z0318M540090 High Tensile Set Screw Zp M8 X 90mm Box 100 Memhts890Z
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The Metalmate High Tensile Set Screws are professional-grade fasteners designed for engineers, contractors, and DIY enthusiasts who require maximum reliability in structural or mechanical assemblies. Featuring Grade 8.8 steel construction and a zinc-plated finish, these M8 x 90mm screws provide excellent tensile strength and resistance to environmental degradation, though they are specifically intended for high-load applications and may be overkill for lightweight household assembly tasks.
| Colour | Grey |
|---|---|
| Model Part Number | Z0318M540090 |
| Brand | Metalmate |
Grade 8.8 refers to the tensile strength classification, indicating the fastener is made from medium carbon steel that has been quenched and tempered to reach specific strength levels.
Yes, these are set screws that conform to the DIN 933 standard, which designates a fully threaded fastener.
They are zinc-plated, providing decent corrosion resistance, but they are best used in sheltered or dry outdoor conditions rather than direct exposure to salt or heavy rain.
These screws have a diameter of 8mm (M8) and a length of 90mm measured from under the head.
No, this product consists of the set screws only. Nuts and washers should be purchased separately based on your specific requirements.
Ensure the receiving hole is properly tapped and free of debris or paint buildup. Check for thread damage on the screw.
Verify the socket or wrench size is a perfect fit for the hex head. Avoid using worn-out tools.
While zinc-plated, exposure to harsh chemicals or standing water will eventually degrade the finish. Replace damaged screws and ensure they are not used in high-causticity environments.
To ensure maximum effectiveness, match these screws with compatible M8 nuts and washers. When installing, it is recommended to use a calibrated torque wrench if the application has specific tightening requirements to prevent over-stressing the material. While the zinc plating provides a layer of defense against moisture, these fasteners should be stored in a dry, cool location to maintain the integrity of the finish. If working in environments prone to extreme moisture, consider applying a light layer of machine oil or using additional protective coatings to prevent oxidation over time.
