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Customized with cover cylindrical nut external knurled non-standard fasteners white zinc plated 3/8

We have more than ten years of experience in the production of screw industry, the main products are: internal gecko bolts, fine thread screws, thread sheaths, 6.8 screws, hex nuts, cross flat head screws and bolts, car repair gecko bolts, circular rings, Expansion shock-resistant back bolts, galvanized nylon lock nuts, nylon plug bolts, high-precision flat head rivet nuts, T-shaped hammer head bolts, ASMEB18.2.3 carbon steel galvanized bolts, screw link nuts and other fasteners, due to the product The materials and specifications are different, and the prices are also different. Please contact us if you need it.

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Product introduction

Screw Specifications

Screw head table

Specification Model Screw Specification Model Example: 4 X 10 PW AHC (+) ① ② ③ ④ ⑤ ⑥ ⑦ ① Screw Diameter ② Screw Length ③ Screw Head Type B: Spherical Cylindrical; C: Cylindrical; F (K): Countersunk ; H: Hexagon head; HW: Hexagon head with washer; O: Half countersunk head; P: Plain head; R: Half head; PW: Plain head with washer; T: Large flat head; V: Mushroom head;

Customized cylindrical nut with cover

The retaining ring is divided into two types: shaft use and hole use. Its structural characteristics: The shaft retaining ring is a kind of retaining ring installed on the shaft groove, which is used for positioning and fixing of shaft end parts, and can withstand severe vibration and shock loads, but It is necessary to take anti-loosening measures and installation positioning; the hole is installed in the circular hole with an elastic retaining ring, which is used for the axial movement of the fixed parts. The outer diameter of this retaining ring is slightly larger than the diameter of the assembly circular hole.

External knurling

Non-standard fasteners

However, due to a radial external tension, the external tension is caused by the tightening axial force generated by the tightening torque, and the phenomenon of open ring expansion occurs, and the spring washer often breaks due to hydrogen embrittlement. The nut exerts uneven pressure on the flat washer through the spring washer. And the friction coefficient between the spring washer and the nut and the flat washer is very small, and the phenomenon of vibration, rotation and relaxation occurs.

white zinc plated

Embodiments of Guangdong Yueluo Hardware Industry Co., Ltd. are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, and are intended to be used to explain Guangdong Yueluo Hardware Industry Co., Ltd., and should not be construed as a limitation to Guangdong Yueluo Hardware Industry Co., Ltd.


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