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The Fix
Practical guides and a fastener challenge for choosing stainless screws, bolts, nuts and washers with confidence.
Featured guide
How to Stop Stainless Steel Bolts Seizing: Thread Galling Guide
Prevent stainless steel thread galling with clean parts, low speed, correct lubrication and matched torque. Includes warning signs and removal advice.
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a2a4aluminium
Stainless Steel Screws in Aluminium: Galvanic Corrosion Guide
Use stainless screws in aluminium without avoidable galvanic corrosion. Learn when the pairing is safe, when to isolate it and which grade to choose. Open guide
a2-70a4-70a4-80
Stainless Steel Bolt Torque Chart: A2-70, A4-70 and A4-80 Explained
Dry tightening torque chart for A2-70, A4-70 and A4-80 metric stainless bolts from M3 to M20, with lubrication and preload guidance. Open guide
pilot-holesplasticself-tapping-screws
Self-Tapping Screw Pilot Hole Size Chart for Aluminium and Plastic
Choose a starting pilot hole for 3.5, 4.2 and 4.8 mm stainless self-tapping screws in aluminium and compatible plastics, with practical test guidance. Open guide
a2a4buying-guide
Best Screws for Treated Timber and Decking: Grade and Size Guide
Choose stainless screws for treated timber, decking and outdoor structures. A2 vs A4, screw sizes, pilot holes and corrosion mistakes explained. Open guide
beginnerfastenersglossary
Fastener Head and Drive Types: A Visual Glossary
Pan, countersunk, button, hex, socket, cup square - what each fastener head type looks like, what it's used for, and which drive bit fits. Open guide
bulkbuying-guidelaunch
DIY vs Trade Pack: When to Buy Bigger
How to decide between a DIY pack and a Trade pack of fasteners. Cost-per-unit, storage, common-stock items, and when bulk pays off. Open guide
316a4boats
Marine-Grade Fasteners: A Complete Buying Guide
Everything you need to know about A4 (316) marine-grade stainless fasteners. When to use, how to spec, common mistakes and where to buy. Open guide
dinfastenersiso