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1927年BURNDY奔迪第一个提出并制造用于室外的DURIUM外六角硅青铜紧固件,做为业内标准直到今天。该系列产品包括硅青铜螺栓、螺母、平垫圈、弹簧垫圈和内齿锁紧垫圈,符合ASTM B99,它结合了高强度和高耐腐蚀性,栓头采用美国标准外六角尺寸,遵守美国粗螺纹标准CLASS#2,ASTM B99硅青铜材料。螺纹规格有1/4-20、5/16-18、3/8-16、7/16/14、1/2-13、5/8-11、3/4-10、1-8,各种长度供选择。可单独购买螺栓、螺母和各类垫圈,也可以套装购买。
BURNDY® introduced silicon-bronze bolts, nuts and other hardware items on outdoor connector applications in 1927. Today the DURIUM™ trademark is a standard for this use. DURIUM™ bolts combine high strength with corrosion resistance. Heads have American Standard dimension and the threads are per American National Coarse Series, Class #2 fit. The silicon bronze is per ASTM B99.
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