Hex Socket Head Cap Screws, High Head Bolts, Inner Hexagon, Shoulder Shaft & Limit M5-M20, Grade 12.9

These high-strength fasteners are designed for demanding applications, featuring a hex socket head and a high head profile. Engineered with an inner hexagon for efficient torque application, they come with a versatile shoulder shaft and are available in varying sizes from M5 to M20. Made from Grade 12.9 material, they offer exceptional durability and resistance to wear and tear, making them ideal for heavy-duty and precise assemblies. Head shape: Cylindrical head Nominal length: 16, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 110, 120, 130, 140, 150 Surface treatment: Oxidation black Material Grade: 12.9 Nail Type: Screws Manufacture country: China Instructions included: No