معايير GB / DIN / ANSI للمرابط: دليل التصدير
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معايير GB / DIN / ANSI للمرابط: دليل التصدير

2026-01-27· ~9 min read

GB / DIN / ANSI Fastener Standards: Export Specifi. دليل شامل لـGB / DIN / ANSI Fastener Standards: Export Specifi - المواصفات والتطبيقات واختيار الموردين للتصدير B2B إلى الأسواق الأفريقية.

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Overview of Major Fastener Standards Systems

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GB Standard Stainless Steel Bolts: Specifications and Export

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DIN Standard Bolts: Global Reference Standard

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UNC Thread and Imperial Standard Fasteners

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Standard Comparison: DIN vs GB vs ANSI

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Standard SystemHex Bolt (Full Thread)Hex Bolt (Partial)Hex NutThread Type
DIN / ISODIN 933 / ISO 4017DIN 931 / ISO 4014DIN 934 / ISO 4032Metric (coarse/fine)
GB / ChinaGB/T 5783GB/T 5782GB/T 6170Metric (coarse/fine)
ANSI / ASMEASME B18.2.1ASME B18.2.1ASME B18.2.2UNC / UNF (inch)
JIS / JapanJIS B1180JIS B1180JIS B1051Metric (coarse/fine)

Frequently Asked Questions

See frequently asked questions below.

Are DIN and ISO hex bolts interchangeable?

Yes, DIN and ISO metric hex bolts are harmonized under the Vienna Agreement. Dimensions and tolerances are essentially identical. ISO 4017 replaces DIN 933, and ISO 4014 replaces DIN 931.

Can I use UNC bolts with metric nuts?

No. UNC and metric threads have different diameters and pitches. A 1/4"-20 UNC bolt is completely incompatible with an M6 nut despite similar nominal sizes.

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