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  4. Self-Locking
  5. Poly-Lok?
  6. Lock Element Material：Polyester，Screws Material：Steel,Mild Carbon，F(xiàn)inish：Zinc，Head Style：Round，Screw Size：4-40，Drive Style：Cruciform，Lg：1/2"
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Brand detail

Long Lok's self-locking and self-sealing fastener processes have helped engineers solve threaded component fastening problems for more than 50 years. Long Lok, LLC was founded in 1957, in Los Angeles. Its initial mission was to exploit its newly-developed Long Lok? process, which used a thin nylon strip to make a male-threaded fastener self-locking. At that time, this technology's primary application was in the aerospace industry, where the risk of bolts shaking loose was unacceptably high. Long Lok has been known -- from the beginning -- as the company engineers count on to solve their vibration problems. In the ensuing years, Long Lok pioneered a variety of self-locking and self-sealing processes, resulting in the 9 varieties we offer today.

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合肥宇奧工業(yè)設(shè)備有限公司
電話：0551-65178232 手機：13965012628
安徽省合肥市蜀山區(qū)望江西路安高城市天地家園A3-812室
皖I(lǐng)CP備2021001294號-1