304 stainless steel round head straight grain sign knurled solid rivet, self-piercing rivet, driving rivet wholesale M3/M3.5/M4/M5

The core advantages of 304 stainless steel straight-grain rivets are "fastening and anti-loosening, corrosion resistance and durability, convenient installation, and wide adaptability."

• The straight-grain shaft design ensures anti-loosening, anti-slip, and tight engagement The rivet shank features uniform straight-grain knurling, which significantly increases friction when engaging with the hole wall of the riveted base material (such as steel sheet, aluminum alloy, plastic board). After fastening, it exhibits strong resistance to vibration and impact, making it less prone to loosening and falling off. Compared to smooth shank rivets, the anti-loose effect of the straight-grain structure is improved by over 50%, making it particularly suitable for scenarios with vibrating conditions, such as motor housings, chassis cabinets, and vehicle accessories.
• Made of 304 stainless steel, this material is corrosion-resistant and rust-proof in all scenarios, featuring an alloy ratio of 18% chromium and 8% nickel. A dense oxide film forms on its surface, which can withstand the erosion of moisture, salt spray (non-coastal high concentration), mild acids and alkalis, and daily cleaning agents. It is resistant to rust and corrosion in outdoor, bathroom, kitchen, and other scenarios after long-term use, with a service life 4-6 times that of carbon steel galvanized rivets. Moreover, the material is non-magnetic, environmentally friendly, and non-toxic, making it suitable for assembly scenarios requiring safety, such as food machinery and children's products.
• Easy and efficient to install, no need for complex tool adaptation, manual rivet gun or pneumatic rivet gun, simple operation process: drilling → inserting rivet → riveting and forming, no welding or additional nut coordination required, single person can complete the assembly; straight grain shaft positioning is precise, not prone to deviation when inserting into the base material hole, high efficiency in batch assembly, suitable for factory assembly lines, on-site construction, or DIY repair scenarios.

Shenzhen Huayuanxing Precision Hardware Co., Ltd. is a manufacturer specializing in the development, production, and sales of screw fasteners, with 20 years of industry experience. Huayuanxing screws are characterized by precision, miniaturization, and firmness. The company's existing factory covers an area of over 8,000 square meters, with a finished product warehouse of over 4,000 square meters and a stock inventory of over 3,000 tons. It has successively introduced more than 250 precision production equipment, including cold heading machines, thread rolling machines, and thread milling machines, capable of producing small screws with an outer diameter of 1mm and a length of 3mm, with an average daily production capacity of up to 20 million pieces. Huayuanxing has complete inspection equipment, including salt spray testing machines and 2D imaging detectors. It currently employs more than 50 people, including 8 engineering and technical personnel with 20 years of industry experience