Technical fasteners · San Diego, California
Metric & inch fasteners for technical applications
Stainless steel screws, nuts, washers and PCB standoffs with practical dimensional information for confident selection.
PCB standoffs →
Metric & UnifiedClearly identified thread systems
DIN & ISO referencesStandards context where applicable
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Technical resourcesCharts and practical selection guides
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Identify the thread system, nominal diameter, pitch, material and applicable product standard before ordering or replacing a fastener.
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Latest fastener guides
How to Measure a Screw or Bolt: Diameter, Pitch and Length
Measure an unknown screw correctly: major diameter, metric pitch or inch TPI, length by head style, drive, material and a final fit check.Read guide →
Screw Thread Pitch Chart: Metric, UNC & UNF Sizes
Identify common Unified inch and ISO metric screw threads with UNC, UNF, TPI, and metric-pitch charts, plus practical measurement guidance.Read guide →Need help identifying a part?