Flat Head Torx Flat Point Coarse Thread Self-Tapping Screws

Our screws are professional heavy-duty concealed self-tapping fasteners developed targeting the pain points of slow locking speed, insufficient holding power and easy loosening of fine-thread screws in thick substrate assembly scenarios. Different from conventional fine-pitch flat point screws with dense and shallow threads, this product adopts an upgraded exclusive coarse thread design with enlarged thread pitch and deepened tooth profile. The optimized coarse pitch structure greatly improves the single-turn locking stroke, enabling faster in-place fastening and higher construction efficiency in batch thick plate operation. More importantly, the deep large-pitch threads can penetrate deeper into thick wood fiber layers and composite material structures, forming a wide-range occlusive wrapping force, which completely overcomes the defect that fine threads are easy to slip and loosen due to shallow bite in thick substrates. The specially designed flat blunt point abandons the traditional sharp-point structure, eliminating instantaneous piercing impact force. It can effectively avoid bottom penetration, local cracking and internal fiber damage of thick wood boards during fastening, maximizing the structural integrity and load-bearing performance of the workpiece. The precision flat countersunk head undergoes smooth finishing treatment, which can be completely sunk into the workpiece surface after locking without any protrusion, realizing ultra-flat installation effect and high decorative appearance. The standard deepened torx drive groove has high tool matching accuracy and anti-slip performance, which can bear continuous high-torque locking without groove rounding or tool slipping, adapting to repeated disassembly and heavy-load locking requirements. Made of high-strength carbon steel with overall quenching and tempering treatment, the screw body has excellent toughness and tensile resistance, not easy to deform or slide teeth during long-term heavy-load use. Integrating fast coarse-thread locking, super strong substrate holding power, anti-crack flat point protection and flush concealed assembly, this product is a high-performance exclusive solution for thick wood structure engineering and high-grade decorative flat fastening scenarios.

Key Features

- Exclusive Coarse Pitch Thick Thread: Enlarged thread spacing and deepened tooth depth, faster locking stroke, stronger thick substrate wrapping and holding power, anti-slip and anti-loose.

- Anti-Damage Flat Blunt point: No sharp piercing tip, avoid thick workpiece bottom penetration and fiber cracking, fully protect substrate structural integrity.

- Flush Flat Countersunk Head: Precision sinking design, zero protrusion after installation, ultra-smooth workpiece surface, high aesthetic decorative effect.

- High-Torque Torx Drive: Deepened anti-slip groove, stable high-strength locking, no tool slipping or head wear, suitable for batch and repeated assembly.

- Thick Substrate Specialization: Optimized for thick wood and composite plates, solve the loose fastening problem of fine-thread screws on heavy-thickness workpieces.

- High-Strength Durable Structure: Overall heat treatment process, excellent tensile and shear resistance, long-term stable heavy-load fastening performance.

Applications

- Thick solid wood furniture structural fixed assembly

- Large plywood and multi-layer board concealed fastening

- High-grade decoration flat flush installation projects

- Wood engineering heavy-load stable connection scenarios

- Batch quick-locking thick plate assembly construction