描述

本产品为10.9级高强度达克罗法兰螺栓，执行GB/T 5787等国家/行业标准，由聚云锐紧固件（20年专业紧固件生产厂家）自主研发生产，专为高负荷、高腐蚀工况设计，广泛应用于汽车制造、工程机械、轨道交通、电力设备、新能源等对连接强度与防腐性能有严苛要求的领域。
English：This product is a 10.9-grade high-strength dacromet flange bolt, complying with national and industry standards such as GB/T 5787. Independently developed and produced by Juyunrui Fasteners, a professional fastener manufacturer with 20 years of experience, it is designed for high-load, high-corrosion working conditions, and is widely used in automotive manufacturing, engineering machinery, rail transit, power equipment, new energy and other fields with strict requirements for connection strength and anti-corrosion performance
本产品采用10.9级高强度合金钢为基材，经调质热处理，抗拉强度≥1000MPa，屈服强度≥900MPa，远超普通8.8级螺栓，可承受极端冲击、振动与交变载荷，杜绝松脱、断裂风险。法兰面一体成型设计，增大支撑接触面积，分散压紧力，无需额外加装平垫，简化安装流程，提升连接稳定性，有效防止连接件变形。
English：Made of 10.9-grade high-strength alloy steel as the base material, after quenching and tempering heat treatment, the tensile strength is ≥1000MPa and the yield strength is ≥900MPa, far exceeding ordinary 8.8-grade bolts. It can withstand extreme impact, vibration and alternating loads, eliminating the risk of loosening and fracture. The integrated flange surface design increases the support contact area, disperses the pressing force, eliminates the need for additional flat washers, simplifies the installation process, improves connection stability, and effectively prevents deformation of connected parts.

达克罗工艺无铬钝化，符合欧盟RoHS、REACH环保标准，无重金属污染，满足出口外贸与国内环保项目要求。全批次出厂检测：包含硬度、拉力、盐雾、镀层厚度等多项检测，出具第三方检测报告，品质稳定可控，可追溯生产全流程。
English：The dacromet process uses chromium-free passivation, complying with EU RoHS and REACH environmental protection standards, with no heavy metal pollution, meeting the requirements of export foreign trade and domestic environmental protection projects. Full-batch factory inspection: including hardness, tensile force, salt spray, coating thickness and other multiple tests, issuing third-party inspection reports, with stable and controllable quality and traceable full production process.