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High-tensile Part

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.

  • High-tensile Product - F10T

    High-tensile Part - F10T

    Standard download

    SIZE RANGE

    DIA : M12 - M30 (1/2” - 1 1/4”)

    LENGTH : 30 - 300mm (1 1/4” - 12”)

    APPLICABLE REGULATIONS

    KS B 1010, JIS B 1186, ASTM A325/A490

  • High-tensile Product - S10T

    High-tensile Part - S10T

    Standard download

    SIZE RANGE

    DIA : M16 - M30 (5/8” - 1 1/4”)

    LENGTH : 30 - 300mm (1 1/4” - 12”)

    APPLICABLE REGULATIONS

    KS B 2819, JIS Ⅱ- 09, ASTMF 1852 / F2280 EN 14399 - 10

Heavy Equipment Division

Track bolts produced by DONGAH are used for assembling heavy equipment rails for construction machinery
and are actively engaged in developing new products that can adapt to various fields and customer needs.

Heavy equipment Part
  • Heavy equipment Part

    SIZE RANGE

    DIA : M12 - M30 (1/2” - 1 1/4”)

    LENGTH : 30 - 200mm (1 1/4” - 8”)

    APPLICABLE REGULATIONS

    Tensile sterength of over 170,000 PSI (14% higher than SAE grade 8)

    Hardness of Rockwell HRC 38-42 securing

Industrial sector

Bolt and nut produced by DONGAH are actively developing new products
that can adapt to various fields and customer needs.

  • We are actively engaged in developing new products that can adapt to customer needs.

    Industrial part - HEX CAP SCREW(BOLT)

    SIZE RANGE

    DIA : M6 - M80 (1/4” - 3)

    LENGTH : 30 - 300mm (1 1/4” - 12”)

    SAE J429 ASTM A193, A354 ANSI/ASME B 18.2.1

    KS B1002, JIS B1180, DIN 931, BS 3692A

  • Industrial part - HEX NUT

    Industrial part - HEX NUT

    SIZE RANGE

    DIA : DIA : M8 - M80 (1/4” - 3”)

    APPLICABLE REGULATIONS

    KS B 1012, JIS B 1181 ASTM A 194, A563

    SAE J995 DIN 934, 6915 BS 3692

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