
Torx Drive Self-Threading Fasteners
Are you struggling with screws stripping in plastic or thin sheet metal? Standard self-tapping screws often require too much force to drive and are prone to tool slippage. Our Torx Drive Self-Threading Fasteners solve this by combining the high-torque efficiency of a six-lobe drive with a trilobular (Tri-round) thread design.

Are you struggling with screws stripping in plastic or thin sheet metal? Standard self-tapping screws often require too much force to drive and are prone to tool slippage. Our Torx Drive Self-Threading Fasteners solve this by combining the high-torque efficiency of a six-lobe drive with a trilobular (Tri-round) thread design. The triangular thread profile displaces material rather than cutting it, which reduces driving torque by up to 30% and significantly increases resistance to vibrational loosening. For an M5 screw driven into a 2mm steel plate, the driving torque is only 1.5-2.5N·m, yet the stripping torque remains exceptionally high.
As a 20-year veteran manufacturer in Shanghai, we produce these Torch Slot Self-Tapping Screws with case-hardened carbon steel (HV 450-550 surface hardness) to ensure they can "form" their own threads even in tough substrates. The Torch Slot (Torx) drive allows for automated assembly at high speeds with 80% less risk of tool "cam-out" compared to Phillips heads. This leads to fewer damaged parts and a much faster production cycle. Whether you are assembling automotive interior panels or electronic enclosures, our fasteners provide a reliable, chip-free connection that can be removed and reinstalled multiple times without losing grip.
Specifications
Sizes:
M3 to M8.
Drive:
Torx (ISO 10664).
Thread Type:
Trilobular (Tri-round) forming threads.
Material:
SWRCH22A / 10B21 Carbon Steel, SUS304.
Surface Hardness:
HV 450--550.
Standards:
DIN 7500, ISO 10664.
Application Areas
Ideal for plastic housings, thin sheet metal assembly, automotive electronics, and any application where low driving torque and vibration resistance are required.
Customization & Factory Strength
Our IATF 16949 certified factory offers specialized coatings like Zinc-Nickel for superior corrosion resistance (720h salt spray). We support OEM production based on your specific substrate hardness and thickness.
Packaging & Shipping
Carton packing with internal plastic liners. 2-3 week lead time for standard items. We accept USD and ship globally from Shanghai port.
FAQ
Q: Can these be used in plastics?
A: Yes, the trilobular design is excellent for thermoplastics as it allows the plastic to cold-flow into the thread roots for a very secure lock.
Q: Do these screws create metal chips?
A: No, the self-threading design "forms" the thread by displacement, making it ideal for clean-room or electronic environments where chips could cause shorts.
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