Irregular bolt - Guocheng

Flat end fastening、Inner Hexagon socket Set screws、Hex Set screws、headless bolt

Flat end fastening A set screw (headless screw) is a kind of screw specially used to fix the relative position of the machine, and the role is equivalent to the positioning pin. It is a full screw rod, which is connected to each other through two holes, and the two ends are tightened and fixed with a wire cap. When in use, screw the set screw into the screw hole of the part to be fixed, and press the end of the screw on the surface of the other part, even if the previous part is fixed on the latter part. Slotted and hexagon set screws are used on machine returns where the nail head is not allowed to be exposed, and square set screws are used on parts where the nail head is allowed to be exposed. Flat-end set bolts are a kind of mechanical accessories whose function is to fix and tighten so that the individual parts form a stable structure. Flat-end set bolts are commonly used in a variety of machinery and equipment to secure individual components to form a stable and reliable connection.

Hole retaining ring、C-type Circlip、Circlip Retaining Rings、Circlips For Hole

Retaining rings for holes Retaining rings for holes is installed in the round hole and is used for the axial movement of the fixed parts, and the outer diameter of this type of retaining ring is slightly larger than the diameter of the assembled round hole. During installation, it is necessary to use circlip pliers, insert the jaws into the clamp hole of the retaining ring, and clamp the retaining ring before it can be put into the inner groove of the pre-machined round hole.

Lock Pin、Split Cotter Pin、U-shaped Pin、Cotter Card Pin、Elastic Hairpin、Spring Pin、Locking Cotter Pin

Cotter Pins The cotter pin is a kind of mechanical part, in order to avoid damaging the hole wall, grease and lubricating oil can be added to the pin hole, and the production of this part requires the use of high-quality steel, rigid material with good elasticity. The cotter pins are commonly used for positioning and locking. After the nut is tightened, insert the cotter pin into the nut groove and the bolt tail hole, and pull the tail of the cotter pin open to prevent the relative rotation of the nut and the bolt. A cotter pin is a kind of metal hardware, commonly known as a spring pin. In mechanical systems, cotter pins can be used to connect two parts and prevent them from moving relative to each other. It can also be used to prevent other parts from falling off, such as using cotter pins on bicycle axles to secure wheels.

Steel ball set bolts、Steel ball tightening、hexagon socket ball point set screw

Steel ball set bolts The steel ball set bolt is a special bolt, which is characterized by having a steel ball locking mechanism. This type of bolt usually consists of a bolt head, a screw, and a steel ball, where the bolt head has a special shape that can be used with a nut. The working principle of the steel ball set bolt is that when the nut matches the special shape of the bolt head, the bolt head will push the steel ball along the screw until the steel ball reaches between the bolt head and the nut. At this point, the ball gets stuck between the bolt head and the nut, preventing the bolt from loosening. Ball set bolts are suitable for a wide range of situations where high tightening forces and loosening are required, e.g. in machinery, vehicles, construction, etc. It has the advantage of having a high tightening force and the effect of preventing loosening, and at the same time has a small volume and weight, which can save space and reduce weight.

Spring Pin、Slotted Spring steel roll Pins、Straight Pins、Cylindrical Cotter Dowel pin、hollow dowel

Spring Pin A spring pin (also called tension pin or roll pin) is a mechanical fastener that secures the position of two or more parts of a machine relative to each other. Spring pins have a body diameter which is larger than the diameter of the hole they are intended for, and a chamfer on either one or both ends to facilitate starting the pin into the hole. The spring action of the pin allows it to compress as it assumes the diameter of the hole. The force exerted by the pin against the hole wall retains it in the hole, therefore a spring pin is considered a self retaining fastener. Spring pins may be used to retain a shaft as a journal in a plain bearing, as a type of key to fasten one shaft to another, or to precisely fasten flat faces of mating parts together through symmetric hole locations.

Semicircle key、moon keys、Flat Keys、Half Moon Woodruff Keys、Semicircular Keys、Crescent flat keys

Semicircle key The key bar is a kind of long bar, there are different, a variety of cross-sectional sizes, the key is mainly used as a circumferential fixation between the shaft and the parts on the shaft to transmit torque, and some keys can also realize the axial fixation or axial movement of the parts on the shaft. Keys are divided into flat keys, Semicircle key, wedge keys, tangential keys, and spline keys, etc.

Concave end tightening、Set screw、socket Set screws、Socket Hexagon Set Screws、Hex Set Screw

Concave end tightening Hexagon concave end tightening, also called hexagon concave end machine, headless, hexagon groove, need to be installed with a corresponding size hexagon wrench or sleeve, headless design can make the connector more beautiful. Hexagon concave end tightening is generally used to fix the shaft end, and is mostly used with hexagon convex pins, which can provide stronger fastening effect and avoid loosening of connectors, and is suitable for parts with greater hardness or workpieces that need to be adjusted frequently, and is widely used in various mechanical equipment, automobiles, bicycles and other fields. The hexagon groove is designed to allow the tool to hold the screw more firmly, providing a better grip.

Type B cotter pin、R split pin、R Pins Cotter pins、R Clip Split Cotter Pin、Retaining Clip

Type B cotter pin Type B cotter pin is a mechanical part that is mainly used for locking and positioning. It is shaped like a round sheet with an opening that allows it to be conveniently loaded into the pin hole. Type B clinc pins are usually made of high-quality steel or stainless steel, which has high hardness and elasticity. In mechanical systems, B-type cotter pins can be used to connect two parts and prevent them from moving relative to each other. It can also be used to prevent other parts from falling off, such as using a B-type cotter pin on a bicycle axle to secure a wheel. When installing a B-type cotter pin, you need to clean the pin hole first to ensure that there are no impurities or rust. Then put the B-type cotter pin into the pin hole and gently tap it with a hammer to make it fit tightly with the pin hole. Finally, it can be tightened with a wrench or pliers to ensure that it is securely seated in the pin hole.