Yomats: Quality Screws and Bolts Online Store

Bolts and Screws

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❓ Frequently Asked Questions

Yes, high humidity and coastal moisture in cities like Jeddah and Dammam can accelerate corrosion. For long-lasting performance, choose hot-dip galvanized or stainless steel screws. At Matkel, we stock corrosion-resistant fasteners specifically tested for Saudi conditions, ensuring reliable durability without premature rusting.

Look for clear markings on the packaging indicating material grade, tensile strength, and SASO or ISO certification. Reliable suppliers clearly label load ratings and corrosion resistance. When you purchase from Matkel, every fastener is factory-tested and fully compliant with Saudi building requirements for structural safety.

Wood requires coarse-threaded screws that grip fibers effectively, while metal needs fine threads or self-drilling tips to cut cleanly without cracking. Always match the screw diameter and length to your material thickness, and select higher tensile grades for heavy-duty framing or structural metalwork projects.

The first number indicates tensile strength in MPa divided by 100, while the second shows yield ratio. Grade 8.8 suits medium construction loads, whereas 10.9 handles heavy stress and vibration without shearing. Selecting the correct grade prevents structural failure and ensures long-term stability across Saudi projects.

Keep fasteners in a cool, dry, and covered area away from direct sunlight and ground moisture. Store them on raised pallets or shelves, and reseal any opened packaging with moisture barriers. Proper storage preserves mechanical strength and coating integrity until you are ready to begin construction.

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