Zinc-Plated Knurled High Nut, This Product Used in The Assembly of Circuit Boards, Control Panels, and Electrical Enclosures.

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: GB/T 806-1988
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, GB
• Grade: 8.8
• Transport Package: Bag
• Specification: M1.6-M10
• Trademark: LING KE
• Origin: Yong Nian
• HS Code: 731816
• Production Capacity: 200000/Year
• Package Size: 60.00cm * 50.00cm * 45.00cm
• Package Gross Weight: 50.000kg

Product Description

Electro-galvanized knurled high nuts are a specialized type of fastener that combines practical design with enhanced protective properties, making them indispensable in various industrial and commercial applications.

Structural Design

Material and Performance

Applications

These nuts feature a distinctive structure that sets them apart from standard fasteners. They have an extended length (hence "high"), which provides a deeper thread engagement, ensuring a more secure and stable connection, especially in thin or fragile materials. The outer surface of the nut's head is equipped with knurling—either straight or diamond-patterned ridges. This knurled design significantly increases friction, allowing for easy manual tightening and loosening without the need for tools, which is particularly useful in scenarios requiring frequent adjustments. The hexagonal or round head shape (depending on specific requirements) offers a balanced combination of grip and compatibility with standard installation processes.

Corrosion Resistance: The electro-galvanized layer, especially when combined with passivation, enables the nuts to withstand moisture, humidity, and mild chemical exposure, making them suitable for indoor and outdoor use where rust prevention is necessary.Mechanical Strength: The base material ensures sufficient tensile and shear strength to handle typical fastening loads. The extended length enhances the load-bearing capacity by distributing stress more evenly,Ease of Use: The knurled surface allows for quick, tool-free installation and removal, saving time in assembly and maintenance operations.

Electronics and Electrical Equipment: Used in the assembly of circuit boards, control panels, and electrical enclosures, where their corrosion resistance protects against moisture damage, and the knurled design facilitates easy manual adjustments.
Automotive and Machinery: Applied in interior components, dashboard assemblies, and small mechanical parts that require occasional disassembly. The electro-galvanized coating resists oil, grease, and minor environmental exposure under the hood or in vehicle interiors.
Furniture and Consumer Goods: Utilized in furniture manufacturing (e.g., chairs, tables, and cabinets) for connecting parts that may need tightening over time. They are also found in toys, appliances, and DIY kits, where user-friendly, tool-free operation is valued.

Packing & Delivery

 Plastic Bags

Carton Boxes

Knurled high nuts are first sorted by size and packed into low-density polyethylene (LDPE) bags. These bags, with a thickness of 0.03–0.05 mm, prevent friction between nuts that could damage the knurled patterns or scratch the surfaces. Each bag contains a fixed quantity based on the nut size: for M3–M6 nuts, common counts are 500 or 1000 pieces per bag; for larger sizes (M8–M10), quantities range from 200 to 500 pieces per bag. The bags are heat-sealed to block dust and moisture.

Bagged knurled high nuts are packed into sturdy corrugated cartons. These cartons, made of double-wall cardboard with a bursting strength of 250–350 psi, provide robust protection against impacts. Typical carton dimensions vary by nut size: a standard carton for M5 nuts might measure 30 cm × 20 cm × 15 cm, holding 20–30 sealed bags (10,000–30,000 pieces total). To prevent movement inside, the cartons are filled with foam inserts or crumpled paper to fill gaps and absorb shocks during transit.

Company Profile

Company Name

 Hebei LING KE Metal Products Manufacturing Co.has firmly established itself as a leading force in the fastener industry, with a rich history and a commitment to excellence that spans over 10 years. Since its inception, the company has been dedicated to providing high-quality fasteners and comprehensive fastening solutions to a diverse range of industries worldwide.In recent decades, Hebei LING KE Metal Products Manufacturing Co. has expanded its footprint globally, establishing strategic partnerships and distribution centers in key regions around the world. This has allowed the company to better serve its international customer base and meet the growing demand for its products in emerging markets.