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Fastener Reference Guides

Free engineering reference tables and charts for fastener specifications, torque values, thread standards, and more.

TORQUE VALUES

Bolt Torque Specification Chart

Recommended tightening torque values for standard bolt sizes in Grade 4.6, 8.8, 10.9, and 12.9. Metric sizes from M6 to M30.

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THREAD DATA

Thread Pitch Reference Table

Comprehensive thread dimensions and pitch values covering BSW, Metric ISO, UNC, and UNF threading standards.

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MATERIALS

Fastener Material Comparison Guide

Compare mechanical properties, corrosion resistance, and best applications for Mild Steel, SS 304, SS 316, EN8, and High Tensile fasteners.

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WEIGHT DATA

Fastener Weight Reference Guide

Approximate weights per 100 pieces for hex bolts, nuts, and washers in common sizes. Useful for logistics and cost estimation.

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