This is a non-standard screw that integrates external hexagonal fastening and internal thread connection. It is made of high-quality stainless steel and has excellent rust and corrosion resistance.
Read MoreSend InquiryThis non-standard screw is designed with a high-strength hexagonal flange surface. The core feature is that the head is uniquely processed with a semicircular groove to facilitate the fitting and driving of specific tools.
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