No.20, Xinbeiyuan Rd., Zhongli Dist., Taoyuan City 320, Taiwan


Captive Washer Screws
Combination screws (hexagon socket head screws)
B877 B777

Combination screws are all equipped with corresponding washers. The advantage is that it saves time, makes the production line easy to operate, and improves work efficiency. It can be used in bridge engineering, high-rise civil buildings, tower and mast structures, and hoisting machinery.


Product No.
Model number
Material + Surface Treatment
Thread Specifications
Screw length
Effective thread length
RU-285-7561 B877-0306 鋼+鍍層 M3X0.5 6 全牙
RU-285-7570 B877-0308 鋼+鍍層 M3X0.5 8 全牙
RU-285-7588 B877-0310 鋼+鍍層 M3X0.5 10 全牙
RU-285-7596 B877-0312 鋼+鍍層 M3X0.5 12 全牙
RU-285-7600 B877-0315 鋼+鍍層 M3X0.5 15 全牙
RU-285-7618 B877-0320 鋼+鍍層 M3X0.5 20 全牙
RU-285-7626 B877-0408 鋼+鍍層 M4X0.7 8 全牙
RU-285-7634 B877-0410 鋼+鍍層 M4X0.7 10 全牙
RU-285-7642 B877-0412 鋼+鍍層 M4X0.7 12 全牙
RU-285-7651 B877-0415 鋼+鍍層 M4X0.7 15 全牙
RU-285-7669 B877-0420 鋼+鍍層 M4X0.7 20 全牙
RU-285-7677 B877-0425 鋼+鍍層 M4X0.7 25 全牙
RU-285-7685 B877-0510 鋼+鍍層 M5X0.8 10 全牙
RU-285-7693 B877-0512 鋼+鍍層 M5X0.8 12 全牙
RU-285-7707 B877-0515 鋼+鍍層 M5X0.8 15 全牙
RU-285-7715 B877-0520 鋼+鍍層 M5X0.8 20 全牙
RU-285-7723 B877-0525 鋼+鍍層 M5X0.8 25 全牙
RU-285-7731 B877-0610 鋼+鍍層 M6X1 10 全牙
RU-285-7740 B877-0612 鋼+鍍層 M6X1 12 全牙
RU-285-7758 B877-0615 鋼+鍍層 M6X1 15 全牙
RU-285-7766 B877-0620 鋼+鍍層 M6X1 20 全牙
RU-285-7774 B877-0625 鋼+鍍層 M6X1 25 全牙
RU-285-7782 B877-0630 鋼+鍍層 M6X1 30 全牙
RU-285-7791 B777-0306 鋼+鍍層 M3X0.5 6 全牙
RU-285-7804 B777-0308 鋼+鍍層 M3X0.5 8 全牙
RU-285-7812 B777-0310 鋼+鍍層 M3X0.5 10 全牙
RU-285-7821 B777-0312 鋼+鍍層 M3X0.5 12 全牙
RU-285-7839 B777-0315 鋼+鍍層 M3X0.5 15 全牙
RU-285-7847 B777-0320 鋼+鍍層 M3X0.5 20 全牙
RU-285-7855 B777-0408 鋼+鍍層 M4X0.7 8 全牙
RU-285-7863 B777-0410 鋼+鍍層 M4X0.7 10 全牙
RU-285-7871 B777-0412 鋼+鍍層 M4X0.7 12 全牙
RU-285-7880 B777-0415 鋼+鍍層 M4X0.7 15 全牙
RU-285-7898 B777-0420 鋼+鍍層 M4X0.7 20 全牙
RU-285-7901 B777-0425 鋼+鍍層 M4X0.7 25 全牙
RU-285-7910 B777-0510 鋼+鍍層 M5X0.8 10 全牙
RU-285-7928 B777-0512 鋼+鍍層 M5X0.8 12 全牙
RU-285-7936 B777-0515 鋼+鍍層 M5X0.8 15 全牙
RU-285-7944 B777-0520 鋼+鍍層 M5X0.8 20 全牙
RU-285-7952 B777-0525 鋼+鍍層 M5X0.8 25 全牙
RU-285-7961 B777-0610 鋼+鍍層 M6X1 10 全牙
RU-285-7979 B777-0612 鋼+鍍層 M6X1 12 全牙
RU-285-7987 B777-0615 鋼+鍍層 M6X1 15 全牙
RU-285-7995 B777-0620 鋼+鍍層 M6X1 20 全牙
RU-285-8002 B777-0625 鋼+鍍層 M6X1 25 全牙
RU-285-8011 B777-0630 鋼+鍍層 M6X1 30 全牙

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