In die casting, mold quality directly impacts both productivity and product quality. The casting pin plays a critical role within the die-casting mold, which consists of fixed and movable parts. These molds must reliably withstand high pressures, thermal cycling, and repeated mechanical operation. Loosening or failure of the cast pin can result in quality defects, equipment damage, or costly downtime. To address these challenges, the HARDLOCK Set Screw was introduced to ensure secure fastening of casting pins without welding.

• Welded cast pins required significant time and labor to replace.
• Loosening of cast pins led to serious defects in finished parts and increased risk of workplace accidents.
• Frequent maintenance and downtime were impacting productivity and increasing costs.

• Implemented in place of traditional welded joints on cast pins.
• Designed to deliver superior anti-loosening performance in high-vibration, high-heat environments typical of die-casting operations.
• Enabled secure fastening without the need for welding.

• Faster Maintenance: Eliminated the need for welding, drastically reducing cast pin replacement time.
• Improved Safety and Quality: Loosening was prevented, reducing risk of quality defects or pin-related accidents.
• Increased Productivity: Enhanced uptime and production efficiency by simplifying maintenance tasks.
• Lower Costs: Reduced maintenance man-hours and eliminated welding-related expenses.

The HARDLOCK Set Screw has proven to be a high-performance, maintenance-saving fastening solution for die-casting molds. By improving the reliability of cast pin installation and reducing replacement time, manufacturers can ensure consistent product quality, improve workplace safety, and lower overall operational costs.

Industrial machinery operates under intense conditions—including high torque, vibration, heat, and shock—which can easily cause traditional fasteners to loosen or fail. HARDLOCK’s full line of fastening solutions provides unmatched stability and safety in these environments. Our technology is trusted across a wide range of equipment and applications, with tailored solutions for every fastening need:

• HARDLOCK Nut (HLN) for general anti-loosening performance in structural joints
• HARDLOCK Bearing Nut (HLB) for precise shaft locking under dynamic loads
• HARDLOCK Set Screw (HLS) for compact, reliable fixing where standard fasteners fail

Together, these products reduce maintenance cycles, extend equipment life, and ensure continuous, safe operation.

Key Machinery Applications for HARDLOCK Nut (HLN), HARDLOCK Bearing Nut (HLB), HARDLOCK Set Screw (HLS):

• Cement Mill (Liner Stopper)
• Pump Systems (Impeller Stopper)
• Concrete Mixers (Decelerator Shaft Locking)
• Tapping Machines (Ball Screw Locking)
• Power Cylinders (Drive Shaft Stopper)
• Injection Molding Machines
• Excavators (Drill Drive Shaft Stopper)
• Steelmaking Equipment
• Rock Drilling Machines (Straightening Roll Stopper)
• Hydraulic Breakers (Stopper Components)
• Conveyor Rollers
• Agitators (Impeller Stopper)
• Industrial Robots (Arm Assembly Locking)
• Large Hydraulic Presses (Cylinder Units)
• Die-Casting Machines (Core Pin Stopper)
• Compressors (Axis Stopper)

From factory floors to heavy-duty field equipment, HARDLOCK fastening systems—HLN, HLB, and HLS—offer a complete and proven solution for vibration-resistant, maintenance-free performance.