Customized black carbon steel with pad cross round head pan head with pad self-tapping screws black with pointed tail

We have more than ten years of experience in screw industry production. The main products are: 45# steel pin, hemispherical head bolt, set combination 304 stainless steel screw, stainless steel rivet screw, high-strength galvanized, hexagon socket thin rod bolt, stainless steel Thin tooth nut, countersunk head hexagon socket expansion bolt, pan head socket head screw nut, butt-locking screw, copper countersunk head rivet, Yuelu self-locking nut, percussion flat cap GB109 rivet countersunk head rivet, household box Nuts, bolts, galvanized screws, light spring washers and other fasteners are sold by ton. Due to the different materials and specifications of the products, the prices are also different. Please contact us if you need it.

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Product introduction

Screw Specifications

Screw head table

rivet is a nail-shaped object used to join two parts or components with a through hole and a cap on one end. In riveting, the riveted parts are connected by their own deformation or interference. There are many types of rivets, and they are informal. Commonly used are R-type rivets, fan rivets, blind rivets, blind rivets, tree rivets, semi-circular head, flat head, semi-hollow rivets, solid rivets, countersunk head rivets, blind rivets, hollow rivets, these usually use their own deformation Connect the riveted parts. Generally less than 8 mm with cold riveting, larger than this size with hot riveting. But there are exceptions. For example, the nameplate on some locks is riveted by the interference between the rivet and the lock body hole.

Custom Black Carbon Steel

The technical scheme of Guangdong Yueluo Hardware Industry Co., Ltd. is: an eccentric rivet, comprising: a head, a middle part connected with the head at one end, and a tail connected with the other end of the middle part, wherein the center line of the head is connected with the tail center lines are parallel.

Cushioned cross head

Pan head with cushion self-tapping

Nuts and bolts are one of the most widely used fasteners in modern mechanical structures. At present, the common metric bolts and nuts are generally trapezoidal in cross-section. The connection between the bolt and the nut is prone to loosening under severe vibration, or even falls off by itself, and the tightening force of the bolt and nut thread is mainly concentrated in the bolt thread and Between the teeth of the first few threads where the threads of the nut are in contact, resulting in loosening of the fastener and sliding pressure of the threads


At present, injection molding screws are widely used in various electronic and automotive components, including a body, the middle of which is provided with a through hole 3, the body head 1 has a hexagonal cross-section, and the tail 2 is provided with screw teeth. When in use, the middle through hole 3 of the main body will first put the wire harness, and then fix it by injection molding from the head I, and the threads of the tail 13 should be connected and installed with other components. Because the head I of the main body is hexagonal, the torque provided after injection molding is insufficient. Therefore, after the external thread is installed and connected with other components, the head is prone to slip, the installation is not reliable, and there is no push-pull force, resulting in product failure and increased safety hazards.

black with pointed tail

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