Hebei Chuanyi Fastener Co., Ltd., was founded in 1990s which is one of the few old-brand family enterprises in the whole fastener circle. After years of striving for perfection, it has become a leading brand of large hardware and fastener manufacturing of integrating research and development, production and sales.
Company strength
It has more than 280 employees, including more than 20 senior engineers and technicians. Moreover, it has organized senior technicians to Japan, South Korea, India, Canada, Britain, Russia and other countries for sharing, exchange and learning. The company has more than 100 sets of advanced fastener production equipment of all kinds of international level, 6 CNC production lines, and has an integrated processing flow, including raw material processing, product processing, heat treatment, surface treatment and other equipment and facilities, and production testing equipment. The construction area covers 40,000 square meters.The annual output reaches more than 40,000 tons and the value is 20,000,000 US dollars.
Company honor
Our main products include: nut, expansion bolt, flat spring cushion, power fittings, drilling wire, seismic pipe rack and other products. We aim to survive by quality, to develop by quality, Hebei Chuanyi Fastener Co., Ltd. strictly controls every single production link, from raw material procurement to finished products out of storage, and also has established a perfect quality inspection room, equipped with a full set of quality testing equipment, according to ISO9001:2015 quality management system testing procedures, we constantly stringent quality testing all kinds of products , strictly control every single product.
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The reasons for loosening of fasteners during use vary due to their different connection methods .So in practical use, appropriate anti loosening methods should be selected based on the anti loosening method of the fastener. There are currently several commonly used anti loosening methods.
Ⅰ Mech...
Spring washers are elastic components formed by metal stamping or bending, with a gap in the middle that has a certain degree of elasticity, and can be relied on to prevent loosening after installation. And its working principle is achieved through the pressure plate on the spring washer and the ...
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