带有六个外部螺栓的法兰
DIN6921具有黄色锌镀层，满牙和无锯齿的六角型头法兰螺栓，符合ISO4162和GB5787标准，主要是由高高的 - 8.8、10.9和12.9等级的高强度合金钢制成的。
Countersunk Hexagon插座头盖螺钉
黑色头部allen钥匙螺栓主要由高质量的材料制成，以确保耐用性和可靠的固定性能。碳钢是一种常用的基本材料，尤其是在4.8、8.8和10.9等级别中。
螺栓
Hebei Fujinrui Metal Products Co.，Ltd。成立于2004年，位于Hebei Province Handan City。该公司覆盖了10,000平方米的面积，并拥有200多名员工。这是一家企业，将紧固件产品生产和金属表面腐蚀保护与成熟的生产技术团队相结合。在紧固件行业拥有20多年的经验。
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