High tension bolts produced by DONGAH Co., Ltd. are used for steel bridges and steel structures at construction sites,
and are actively engaged in developing new products that can adapt to various fields and customer needs.
DIA : M12 - M30 (1/2” - 1 1/4”)
LENGTH : 30 - 300mm (1 1/4” - 12”)
KS B 1010, JIS B 1186, ASTM A325/A490,EN 14399-3/4
DIA : M16 - M30 (5/8” - 1 1/4”)
LENGTH : 40 - 300mm (1 5/8" - 12")
KS B 2819, JSS Ⅱ- 09, ASTMF 1852/F2280, EN 14399 - 10
Track bolts produced by DONGAH are used for assembling heavy equipment track shoe for construction machinery
and are actively engaged in developing new products that can adapt to various fields and customer needs.
DIA : M12 - M30 (1/2” - 1 1/4”)
LENGTH : 30 - 200mm (1 1/4” - 8”)
Tensile sterength of over 170,000 PSI (14% higher than SAE grade 8)
Hardness of Rockwell HRC 38-42 securing
Bolt and nut produced by DONGAH are actively developing new products
that can adapt to various fields and customer needs.
DIA : M6 - M80 (1/4” - 3)
LENGTH : 30 - 300mm (1 1/4” - 12”)
SAE J429 ASTM A193,A354, KS B1002
JIS B1180, ANSI/ASME B 18.2.1, DIN 931/933, BS3692A
EN 15048 - 1/2
DIA : M8 - M80 (1/4” - 3”)
KS B 1012, JIS B1181,ASTM A 194,A563
SAE J995, DIN 934/6915, BS 3692
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