Torx Countersunk Tri-Lobular Screw | Self-Tapping
Torx Countersunk Tri-Lobular Thread Screw
Engineered for high-torque anti-loosening and flush-mount applications. Torx drive enables 6-point engagement with 300% higher torque transfer vs Phillips, while tri-lobular thread creates permanent mechanical locking. Countersunk head provides aerodynamic surface compliance per ISO 10642. Ideal for aircraft skins, precision instruments, and medical devices.
Key Features
✅ Flush Aerodynamic Surface：90° head angle (ISO 10642)
✅ Zero Cam-Out Torque：≥12N·m at M6 size (ISO 10664)
✅ Vibration Immunity：＞85% residual clamp load (ISO 16130)
✅ Extreme Environment：Ti6Al4V (650℃)/A4-80 SS (2000h salt spray)
Technical Data
|
Parameter |
Specification |
|
Head Standard |
Countersunk (ISO 10642) |
|
Drive Type |
Torx TR (ISO 10664) |
|
Thread Standard |
Tri-Lobular (ISO 15480) |
|
Diameter |
M3 - M10 |
|
Head Depth Tol. |
±0.05mm (Base ≥1.5mm) |
|
Standard |
GB 2672 |
Parameter
Key Applications:
Tri-Lobular Thread Screws leverage their tri-lobular thread cold-forming locking mechanism to address fastener loosening failures caused by high-frequency vibration/dynamic loads. They are indispensable in the following fields:
|
Industry |
Typical Application |
Failure Consequence |
Solution |
|
Automotive |
Engine mounts, Transmission housings |
Bolt loosening may trigger accidents |
M8-M12 high-strength tri-lobular screws (Grade 10.9) |
|
Rail Transport |
Railway signaling equipment, Carriage connectors |
Vibration-induced control system failure |
A4 stainless steel tri-lobular screws + Anticorrosive coating |
|
Aerospace |
Avionics equipment brackets |
Extreme vibration causing device displacement |
Titanium alloy tri-lobular screws (40% weight reduction) |
|
Industrial Robots |
Joint bearing fixation units |
Micromovement from repetitive motion |
M4-M6 micro-sized tri-lobular screws |
SERIVCE
Reliable After-Sales Support
Swift resolution for all technical issues & product inquiries.
20+ Years of Global Export Expertise
Proven experience in international logistics & compliance.
Detailed Product Specifications On Request
Customizable spec sheets for informed purchasing decisions.
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Submit inquiries for prompt pricing & solution proposals.
Certified Export Documentation & Timely Shipment
Hassle-free logistics with professionally prepared export papers.
Custom Packaging with Pre-Shipment Visual Verification
Branded/secure packaging with photo confirmation before dispatch.
Premium Quality at Competitive Pricing
Industry-leading products optimized for value & performance.
CONTACT US
HANDAN BOEN FASTENERS MANUFACTURING CO.,LTD
Email:shaun@boenfasteners.com
Wechat/WhatsApp/Skype/zalo:+86 13293070568 / +86 15630072814
