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Practical guides and a fastener challenge for choosing stainless screws, bolts, nuts and washers with confidence.

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Guides Find the right fastener advice. Grade choices, standards, head types, drive types and pack-size decisions in one place. Challenge Play the Fastener Finder Challenge. Test your eye for heads, drives, grades and stainless fastener details. Arcade Take on Fastener Frenzy. Pick stainless parts, complete job cards and dodge rusty rejects.
Simfix stainless steel hexagon head bolt manufactured to DIN, ISO and BS standards

Featured guide

DIN, ISO and BS Standards Explained for Fasteners

What DIN, ISO and BS standards mean for fasteners, and why they matter. Quick reference to the most common standards on the shelves.

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Grade choice Should I use A2 or A4? Specification What does DIN or ISO mean? Pack size When should I buy bigger? Visual match Which head or drive is this?

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