Non-standard fasteners refer to fasteners that do not need to correspond to the standard, that is, fasteners without strict standard specifications, which can be freely controlled
- Product Description
Non-standard fasteners refer to fasteners that do not need to correspond to the standard, that is, fasteners that do not have strict standard specifications, and can be freely controlled and matched. Usually, the specific requirements are put forward by the customer, and then manufactured by the fastener manufacturer based on these data and information. Generally, the manufacturing cost of non-standard fasteners is higher than that of standard fasteners.Keywords：
- Captive screw
Fasteners generally include the following 12 categories: bolts, studs, screws, nuts, self-tapping screws, wood screws, washers, retaining rings, pins, rivets, assemblies and connecting pairs and welding nails. Function of each part of fastener: Bolt: fastener consisting of head and screw, generally used with nut; Studs: fasteners with threads at both ends; Screw: fastener composed of head and screw, which is divided into machine screw, set screw and special purpose screw; Nut: with internal threaded hole, used with bolts and studs; Self-tapping screw: similar to machine screw, but the thread on the screw is the special thread for self-tapping screw; Wood screw: the thread on the wood screw is a special thread, which can be directly screwed in the wood part; Washer: a kind of fastener in the shape of a closed circle, which is placed between the nut, bolt and screw and the support; Retaining ring: plays a role in preventing the movement of parts on the shaft or hole; Pin: mainly used for part positioning; Rivet: fastener consisting of head and nail rod. It is used to connect the two parts with holes and cannot be disassembled; Assembly and connecting pair: assembly refers to the fastener supplied by combination; The connecting pair is the fastener supplied by the combination of special bolts and nut washers; Welding nails: dissimilar fasteners, which are fixed and connected to one part by welding to connect with other parts.
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