High-Strength Left-Hand Hex Bolts Grade 12.9 | Metric Thread Fasteners Pack of 10 | Heavy-Duty Mechanical Assembly

Product Description

Product Overview

These High-Strength Left-Hand Hex Bolts are designed for demanding mechanical and industrial applications where reverse threading is required. Made from premium Grade 12.9 steel, these bolts offer exceptional tensile strength, durability, and resistance to wear and deformation. The hex head design ensures easy installation with standard wrenches or socket tools, making them ideal for automotive, machinery, and industrial assembly. Each pack contains 10 bolts, perfect for repair, maintenance, or heavy-duty projects.

Key Features

• Premium Material: Manufactured from high-strength Grade 12.9 steel for superior load-bearing capacity and long service life.
• Left-Hand Thread: Ideal for applications requiring reverse threading to prevent loosening under rotational forces.
• Hex Head Design: Compatible with standard hand tools, wrenches, or socket sets for easy installation.
• Heavy-Duty Performance: Withstands high torque and mechanical stress, suitable for industrial, automotive, and machinery applications.
• Pack of 10: Convenient quantity for repair, maintenance, or assembly projects.

Specifications Table

Applications

1. Automotive: Securing rotating parts such as crankshafts, pulleys, and wheel hubs.
2. Industrial Machinery: Equipment requiring reverse-thread bolts to prevent loosening under vibration or rotation.
3. Heavy-Duty Projects: Construction machinery, agricultural tools, or manufacturing equipment.
4. Repair & Maintenance: Ensures secure fastening in high-stress and torque-intensive environments.

FAQ (Frequently Asked Questions)

Q1: What is the advantage of left-hand thread bolts?
A1: Left-hand threads tighten counterclockwise, preventing loosening in applications where rotational forces could unscrew standard right-hand bolts.

Q2: Can these bolts handle heavy loads?
A2: Yes, Grade 12.9 steel provides exceptional tensile strength, making them suitable for high-stress applications.

Q3: Are these compatible with standard nuts?
A3: Use matching left-hand threaded nuts of the same metric size to ensure proper fastening.

Q4: How should I properly install these hex bolts?
A4: Use a suitable wrench or torque wrench, turning counterclockwise to tighten. Follow recommended torque values to prevent over-tightening.