Hebei Shijing Changtian Metal structure products Co., LTD

Carbon Steel Knurled Screw,Grade 12.9 High Quality,High-Strength Steel Knurled Hexagonal Bolt

86-15075018316

Home > Products > Bolt > Knurled Hexagon Socket Bolt > M3 to M30 Hexagon Socket Head Knurled Screw

M3 to M30 Hexagon Socket Head Knurled Screw

Basic Info

BrandShiJingChangTian

FinishBlack Oxide

MaterialSteel

Head TypeCylindrical head

Model NumberM3 ~ M30

Additional Info

PackagingWe will pack and ship according to customer's requirements

TransportationOcean

Place of OriginHandan, Hebei, China

Supply AbilityOur company has its own factory and can complete it efficiently and quickly

PortShanghai,Lianyungang

Product Description

M3 to M30 Hexagon Socket Head Knurled Screw – Premium Fastening Solution for Industrial and DIY Applications This high-performance knurled hex socket head screw is engineered for strength, precision, and adaptability across a wide range of mechanical assemblies. Designed in compliance with international standards such as DIN 912 and ISO 4762, each unit is crafted from hardened carbon steel to ensure long-term reliability under demanding conditions. Whether you're working on heavy machinery, construction projects, or intricate engineering builds, this fastener delivers consistent performance and superior load-bearing capacity. Key Features: - High-strength carbon steel construction meets global quality benchmarks - Available in thread sizes from M3 to M30 for versatile application compatibility - Lengths ranging from 6mm to 400mm accommodate diverse design requirements - Precision knurled finish enhances grip during installation and reduces loosening - Full inspection at every production stage guarantees zero defects before shipping - Custom packaging options support organized storage and logistics efficiency Detailed Description: These hexagon socket cap screws feature a robust internal hex drive that allows for secure torque transmission without damaging the tool interface—a critical advantage over slotted or Phillips heads. The knurled shank provides increased friction and prevents rotation when installed in tight spaces or vibration-prone environments. With standardized metric threading (from M3 up to M30), they are ideal for use in automotive components, aerospace systems, industrial automation, furniture assembly, and electrical enclosures. Each screw undergoes rigorous quality checks including hardness testing, dimensional accuracy verification, and corrosion resistance evaluation—ensuring compliance with global manufacturing expectations. Use Cases: Ideal for applications requiring reliable fastening where space constraints or frequent disassembly are factors. Common uses include mounting brackets, machine frames, conveyor systems, agricultural equipment, and modular structures. Their compatibility with both standard and custom tools makes them suitable for both professional workshops and advanced home projects. Customer Testimonials: Users consistently praise the product's durability and ease of installation. One engineer noted, “These screws hold up better than cheaper alternatives in high-vibration settings.” Another user remarked, “The knurling makes it easy to tighten by hand without stripping the head.” Feedback highlights consistent performance across multiple industries—from woodworking to metal fabrication. Frequently Asked Questions: What materials are used in production? All units are made from high-grade carbon steel, heat-treated for optimal tensile strength and wear resistance. Can I request special packaging? Yes, we offer tailored packaging solutions based on client needs, including bulk bins, roll packs, or individual blister packs. Are these screws compatible with standard Allen keys? Absolutely—they follow the ISO 4762 standard, meaning any standard hex key (or wrench) will fit perfectly. Do they resist rust or corrosion? While not stainless, the surface treatment offers good protection against environmental degradation; additional coatings can be applied upon request. Why choose knurled over smooth shanks? The knurled texture increases grip and minimizes slippage during tightening, especially in confined areas or when using power tools.

Product Categories : Bolt > Knurled Hexagon Socket Bolt

Product Images

  • M3 to M30 Hexagon Socket Head Knurled Screw
  • M3 to M30 Hexagon Socket Head Knurled Screw
  • M3 to M30 Hexagon Socket Head Knurled Screw
  • M3 to M30 Hexagon Socket Head Knurled Screw
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