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Asia-Pacific Fastener News Magazine is a professional magazine which focuses on promoting Taiwanese & Chinese fasteners to global markets in the hardware Industry.

This magazine is a monthly issue in English. It contains information of updated global fastener news and latest information on Taiwanese & Chinese fastener manufacturers......

SEMS Screws
SEMS Screws
  • Products Name: SEMS Screws
  • High Quality Product
    Competitive Price
    Punctual Delivery
    Best Service Support

Products Infomation

SEMS refer to a screw or bolt that has a captive washer. The washer is frequently loose on the plain shank of the fastener, with the shank diameter being equal to the effective diameter of the thread and the thread being rolled from this diameter.The major diameter of the screw being larger than the washer hole prevents it from coming off.
SEMS fasteners are used ina variety of industries and applications, from construction to electronics. They are particularly useful in assembly operations to save the delicate step of assembling the washer on the fastener and/or to prevent the washer from coming loose during assembly.
Most screw/bolt + washer combinations can be made into a SEMS confinguration, and JC Grand has many years of expertise with this product category.

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