Standard: JB /T 8005.1 - 1999
Available sizes: M10 to M8 (5 sizes)
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M10 | Tr20*4左 | 38 | 32/40 | 30 | 30.041 | 36 | 30.028 | 25/32 |
| M12 | Tr30*6左 | 50 | 50/60 | 42 | 42.05 | 48 | 42.034 | 40/50 |
| M16 | Tr36*6左 | 60 | 60/72 | 50 | 50.05 | 56 | 50.034 | 50/60 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
| M6 | — | 20 | 12/16 | 14 | 14.034 | 18 | 14.023 | 10/12 |
| M8 | — | 26 | 20/25 | 20 | 20.041 | 24 | 20.028 | 16/20 |
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