Service HotlineThe structure of Guangdong Yueluo Hardware Industry Co., Ltd. is as follows. Figure 1 is a schematic diagram of the structure of the existing pin shaft stop mode of a general excavator. Figure 2 is a schematic structural diagram of the pin shaft stop used by Guangdong Yueluo Hardware Industry Co., Ltd. for applying the bolt of Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 3 is the left side view according to Fig. 2 of the bolt used for pin stop by Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 4 is the front view of Guangdong Yueluo Hardware Industrial Co., Ltd., which is used for the pin shaft stopper to insert the pin into the pin and form the pin of the pin structure. Fig. 5 is the left side view of Guangdong Yueluo Hardware Industry Co., Ltd., which is used for the pin shaft stopper to insert the pin into the pin and form the pin of the pin structure. Fig. 6 is a front view of the bayonet of the latch used for pin stop by Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 7 is a top view of a bayonet of a latch used for pin stop by Guangdong Yueluo Hardware Industry Co., Ltd. Fig. 8 is the front view of the circlip of the latch used by Guangdong Yueluo Hardware Industry Co., Ltd. for pin stop. [0017] FIG. 9 is a top view of the circlip of the bolt that Guangdong Yueluo Hardware Industrial Co., Ltd. is used for pin-stopping. In Figures 1 to 9, the latch (1), the retaining sleeve (2), the pin shaft (3), the bayonet (4), the circlip (5), the misaligned through hole (6), and the misaligned end head (7).
hand screw is a screw with a plastic head, and the user fixes the hand screw by turning the plastic head by hand. At present, a hand-tight screw is disclosed in the market publication number CN202203253U, which includes a plastic head and a screw rod, the plastic head and the screw rod are connected together, and the height of the plastic head is higher than that of an ordinary screw, and the height is 7cm. The screw of the hand screw is fixed in the plastic head by glue. After a period of use, the aging of the glue leads to the loosening of the screw and the plastic head. When the plastic head is stressed, the screw rod comes out of the plastic head, which affects the normal use of the hand screw.
The force condition of the screw is broadcasted: 1) Self-weight G; 2) Torque M required to overcome material resistance; 3) Axial force P generated by material pressure. Screw screw screw is generally scrapped due to long-term wear, the gap between the screw and the barrel is too large and cannot be extruded normally, but there are also examples of damage due to improper design or improper operation. Therefore, the screw should also meet certain strength requirements. 4) The dangerous section of the screw is generally at the smallest thread root diameter in the feeding section. According to material mechanics, for plastic materials, the composite stress is calculated by the third strength theory, and its strength conditions are:
Countersunk head, half countersunk head, 1200 countersunk head, half countersunk head rivets are mainly used for riveting occasions where the surface needs to be smooth and the load is not large. Flat head rivets are used for riveting occasions subject to general loads. Flat head and flat head rivets are mainly used for riveting of metal sheets or non-metallic materials such as leather, canvas and wood. Large flat head rivets are mainly used for riveting of non-metallic materials. Semi-hollow rivets are mainly used for riveting occasions with little load. Headless rivets are mainly used for riveting of non-metallic materials. Hollow rivets are light in weight and weak in head, and are used for riveting of non-metallic materials with little load. Tubular rivets are used for unloaded riveting of non-metallic materials. Nameplate rivets are mainly used for riveting nameplates on machines and equipment.
Classification broadcast product series Product detailed classification Hexagon bolts (1) Hexagon bolts (1) Hexagon full teeth: GB5783/DIN933 (2) Hexagon half teeth; GB5782/DIN931 (3) Class B flange hexagon bolts: GB5787 (4) Joint bolts: GB798/DIN444 (5) Welding bolts for manual welding: GB902 square neck bolts (1) Half round head square neck bolts: GB14/DIN603 (2) Small half round head square neck bolts: GB12 (3) Half round head low square neck bolts: GB801 Remarks: Square neck bolts and carriage bolts Hexagon socket head cap screws (1) Hexagon socket head cap screws: GB70/DIN912 (2) Hexagon socket flat end set screws: BG70/DIN913 (3) Hexagon socket head set screws: GB78/DIN914 ( 4) Countersunk head socket head socket head set screw: GB79/DIN915 (5) Hexagon socket socket head set screw: GB80/DIN916 (6) Hexagon socket head countersunk head screw: DIN7991 (7) Hexagon socket head thin head screw: DIN7984 ( 8) Plug screw: ISO7379 machine screw (1) Slotted cylinder head screw: GB65/DIN84 (2) Slotted pan head screw: GB67/DIN85 (3) Slotted countersunk head screw: GB68/DIN963 (4) Slotted Large flat head screw (5) Cross recessed small pan head screw: GB823 (6) Cross recessed large flat head screw (7) Cross recessed pan head screw: GB818/DIN7985 (8) Cross recessed countersunk head screw: GB819/DIN965 (9 ) Cross recessed countersunk head screw: GB820/DIN966 thread and stud (2) Stud bolt-bm=1d: GB897/DIN938 (3) Stud bolt-bm=1.25d: GB898/DIN939 (4) Stud head Bolt-bm=1.5d: GB899 (5) Stud bolt-bm=2d: GB900 (1) Tooth bar: GB15389/DIN976 (6) Equal length stud: GB901/DIN976
We have many years of experience in the production and sales of screws, nuts, flat washers, etc. The main products are: grade 8 hexagonal lock nuts, self-tightening nuts, ingot crotchet screws, oxidized multi-color and other products, we can provide you with products suitable for you fastener solutions.
