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Fastener Standards
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Specifications, dimensions, and weight charts for every fastener type. Stock and custom orders available with your choice of surface treatment.
Standards Database
Complete technical reference for bolts, nuts, screws, washers, pins, and more. Dimensional specs, weight charts, thread data, and cross-reference tables across ISO, DIN, GB, ANSI, BS, and JIS.
Browse specificationsSurface Treatment
In-house electroplating for fasteners of all types. Zinc plating, zinc-nickel alloy, black zinc-nickel, and hot-dip galvanizing. From standard hardware to high-strength automotive-grade fasteners.
View coating optionsSurface Treatment Options
Choose the right coating for your application
Zinc Plating
96–400h salt spray
Standard corrosion protection for general hardware. RoHS compliant.
Zinc-Nickel Plating
720–1500h salt spray
High-performance coating for automotive and harsh environments. Our specialty.
Black Zinc-Nickel
720–1500h salt spray
Black finish with premium corrosion resistance for decorative and functional use.
Hot-Dip Galvanizing
500–1000h salt spray
Thick zinc coating for structural bolts, outdoor infrastructure, and solar mounting.
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Standard Converter
Find equivalent standards across ISO, DIN, GB, ANSI, BS, and JIS. 4,000+ cross-references.
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Calculate fastener weight by type, size, and quantity for shipping estimates and material planning.
Open calculatorStandard Comparisons
Compare equivalent standards side by side. Is DIN 933 the same as ISO 4017? 880+ comparison pages.
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