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Vichok Hardware

12.9 Grade Limit Bolt M3 M6-M16 Cylindrical Head Hex Knurled Plug Screw Equal Height Shoulder

12.9 Grade Limit Bolt M3 M6-M16 Cylindrical Head Hex Knurled Plug Screw Equal Height Shoulder

Regular price $2.16 USD
Regular price $2.16 USD Sale price $2.16 USD
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12.9 grade cylindrical head hex knurled plug screws with equal height shoulder are high-strength industrial limit fasteners, engineered for precision positioning, spacing, and limiting applications. Covering metric sizes M3 and M6-M16, these screws integrate a cylindrical head, hex drive, knurled surface, and equal height shoulder, making them ideal for machinery assembly, mold fixtures, equipment positioning, and heavy-load industrial setups requiring stable, precise fastening.
 
Crafted from heat-treated high-grade alloy steel, the 12.9 grade rating delivers exceptional tensile strength, wear resistance, and load-bearing capacity, exceeding standard fasteners in demanding environments. The cylindrical head ensures a low-profile, uniform finish, while the internal hex drive enables secure torque control and slip-proof installation. The knurled surface enhances grip for manual adjustment, and the equal height shoulder guarantees consistent positioning accuracy, preventing lateral movement and ensuring long-term structural stability.
 

Core Features & Advantages

 
  • 12.9 grade heat-treated alloy steel for superior high-strength and heavy-load performance
  • Equal height shoulder design ensures precise positioning and stable spacing
  • Hex drive + knurled surface for secure installation and convenient manual adjustment
  • Cylindrical head for low-profile, uniform fit in machinery and fixtures
  • M3, M6-M16 size range fits diverse industrial positioning and limiting applications
 

Key Specifications

 
  • Material: Heat-Treated High-Grade Alloy Steel
  • Strength Grade: 12.9 Grade (Industrial High-Strength)
  • Head Type: Cylindrical Head
  • Drive Type: Internal Hex Drive
  • Design: Hex Knurled Plug Screw with Equal Height Shoulder
  • Size Range: M3, M6-M16 (Metric)
  • Applications: Machinery Assembly, Mold Fixtures, Equipment Positioning, Heavy-Load Setups
  • Performance: High Tensile Strength, Wear-Resistant, Precision-Positioning, Anti-Movement
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