New Products

Special-Shaped Screw

Stainless Steel Internal Plum Blossom-Shaped Countersunk Screw

Stainless steel torx countersunk head screws are high-end fasteners that combine appearance, anti-loosening and excellent performance. The head adopts a unique countersunk head design and an inner plum blossom (commonly TORX) notch combination, which not only provides strong fastening force, but also achieves a smooth installation surface and an efficient assembly experience.

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Hexagonal Internal And External Thread Screws

Hexagonal internal and external thread screws, also known as blind rivet nuts, are a unique single-sided riveted fastener. Its exterior is a hexagonal structure, which can effectively prevent slipping during installation; its interior is prefabricated with standard internal threads. Its core function is to provide a strong and removable threaded base for materials that are difficult to tap, such as thin plates and pipes.

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L-Shaped Bolt

L-shaped bolts, also known as anchor bolts or hook bolts, have a unique shape. One end is a standard threaded rod, and the other end is bent into a 90-degree right-angled L shape. This design allows it to be cleverly "hooked" or "anchored" into the base material.

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Special-Shaped Screws

The counterhead hexagon grooved fixing screws are made of high-strength carbon steel, combined with counterhead design (90° cone angle) and hexagon drive structure to provide a flat mounting surface and high torque load-bearing capacity.

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Custom-Made Special-Shaped Screws

The 304 stainless steel small square screw is made of high-quality A2-70 stainless steel, with excellent corrosion resistance and oxidation resistance, and is suitable for moisture, acid and alkaline environments.

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Stainless Steel Special-Shaped Screws

The product is made of high-strength carbon steel (8.8 grade), which has undergone heat treatment and black oxide treatment. It features excellent tensile strength (≥800MPa) and rust prevention properties. The screw head is designed with a slot and embossed structure, allowing for both tightening with a wrench and quick manual disassembly.

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Latest News

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In modern mechanical manufacturing, cold heading parts have become essential components in automobiles, home appliances, construction hardware, electronic connectors and aerospace equipment.
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Riyi Standard Parts is a reliable professional manufacturer focusing on the production and supply of various stainless steel fasteners.