The PTS Knowledge Hub — help to find what fits
Clear, practical advice on fasteners, materials and standards from the people who stock them — whether you’re buying one box or specifying for a production run.
Socket Screws: a beginner’s guide
What socket screws are, why they outperform traditional screws, and how to choose the right type and material for your project — with the standards and grades explained in plain English.
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BUMAX® — the world’s strongest stainless
How BUMAX matches carbon-steel strength in stainless, and where it makes the difference.
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Jubilee® clips — the original hose clip
British-made since 1921 — the worm-drive clip whose name became the word for the product.
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LanFranco locking nuts
All-metal vibration resistance — how it holds where nylon-insert nuts can’t.
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Precision Shims — exact spacing
Our own range of thin stainless shim washers for precise alignment and tolerance take-up.
Read the guide →A2 vs A4 Stainless Steel: Which Grade Do You Need?
When to specify 304 (A2) versus 316 (A4) — chloride resistance, PRE values and real-world applications.
Read the guide →Understanding Torque Values for Stainless Fasteners
How to avoid galling and joint failure — correct torque values for A2-70 stainless by size.
Read the guide →DIN vs ISO vs ASME: Understanding Fastener Standards
What DIN, ISO and ASME mean, how they relate, and why DIN numbers persist in common use.
Read the guide →Can’t find the answer you need?
Our technical team has decades of stainless fastener experience. Ask a question, or jump straight into the range and order what you need today.