Zhejiang Shangshi Precision Hardware Manufacturing Co., Ltd. (Shangers Precision) manufactures high-durability Exhibition Tension Locks (also known as 3-way/4-way beam locks, aluminum extrusion quick-locks, or exhibition cam fasteners) designed for modular aluminum display booths, advertising SEG fabric light boxes, and architectural exhibition frames.
Installed inside the hollow end cavity of aluminum extrusion beams, the tension lock utilizes an eccentric rotating cam mechanism. When turned using a standard 4 mm or 5 mm hex key, the hardened spring claws expand outward and hook firmly behind the internal lip of mating upright extrusions (such as standard Octanorm 8-way poles or square upright columns), generating clamping force without requiring welding or exposed screws.
Technical Specifications
| Parameter | Specification & Standards |
|---|---|
| Product Name | Modular Exhibition Tension Lock / Aluminum Beam Quick-Lock |
| Housing Material | Precision Stamped SPCC Cold-Rolled Carbon Steel |
| Claw (Hook) Material | Heat-Treated 65Mn Spring Steel / 45# Carbon Steel (HRC 38–44) |
| Cam Drive Spec | 4 mm / 5 mm Hex Key (Allen Wrench) Drive |
| Surface Finish | Trivalent Bright Zinc Plating (Cr3+, ≥96h Salt Spray Resistance) |
| Clamping Retention Force | 2.0 kN–3.5 kN (200 kg–350 kg axial tension) |
| Compatible Profile Standards | Standard 40 × 40 mm, 80 × 40 mm, 8-way Octanorm poles, and custom extrusions |
| Lock Types Available | Straight 90° lock, 45° miter corner lock, Double-ended splice lock |
Key Product Advantages
Fast & Tool-Free Assembly: Tightens and releases in seconds using only a single hex wrench, helping reduce on-site booth setup and teardown labor.
Anti-Rounding Hex Socket: The eccentric cam drive is designed for manual tightening and release. Drive design and durability depend on the selected model.
Reusable Display Hardware: Supports disassembly and reassembly for compatible modular display systems. Cycle life should be confirmed against product testing.
Concealed Connection: Internal hook clamping can help keep connection hardware concealed when used with a compatible aluminum profile design.
Custom OEM/ODM Manufacturing for Aluminum Extruders
If you produce proprietary aluminum extrusion profiles with non-standard internal cavities or custom slot dimensions, Shangshi Precision can review custom manufacturing requirements based on drawings or reference samples.
- Custom lock casing widths and heights according to drawing requirements
- Special claw geometries and connection structures, subject to design feasibility
- Custom packaging, including bulk cartons, inner boxes, and private-label packaging where available
SHANGERS PRECISION
Request a Quote & Sample Evaluation
Please share your aluminum profile cross-section drawings or current sample dimensions with our team for a project review and quotation.
Email: shangerskevinli@gmail.com
WhatsApp / WeChat: +86-15157778270
Factory Address: No. 168 Wanneng Road, Wengyang Industrial Zone, Yueqing, Wenzhou, Zhejiang, China
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