No Pre-Drill Blind Rivet
Products Description
The core characteristic of the No Pre-Drill Blind Rivet is its "self-drilling and self-riveting" capability; its structure typically consists of three parts:
Drill Tip: Located at the front end of the mandrel, it resembles a twist drill bit and performs cutting and chip evacuation while penetrating the material. Its helix angle, point angle, and cutting edge sharpness determine penetration efficiency and the quality of the hole wall.
Rivet Body: Usually sleeve-shaped and made of materials such as aluminum alloy, stainless steel, or carbon steel. After drilling is complete, the mandrel is pulled and snapped off, causing the rivet body to undergo plastic deformation and form a bulbous shape that clamps two or more workpieces together.
Mandrel: A pull-rod extending through the interior of the rivet body, featuring a pre-engineered break point at its head. The riveting tool grips the mandrel and pulls outward, utilizing stress concentration at the break point to ensure a precise fracture.
The primary distinction from traditional blind rivets lies in the mandrel diameter, which is typically slightly larger than the inner diameter of the rivet body.
Material Advantages: A Precision Balance of Hardness and Toughness
| High-Hardness Mandrel | The mandrel is crafted from medium-carbon steel or alloy steel and undergoes a specialized heat treatment process. The drill tip at the front boasts a hardness exceeding HRC60, ensuring effortless penetration of stainless steel, aluminum alloy, and carbon steel sheets without chipping or premature wear. |
| Ductile Rivet Body | The Drill Tip Blind Rivet body is typically made from aluminum alloy (such as 5052 or 5056) or low-carbon steel. Aluminum alloys offer excellent ductility-resisting cracking during the deformation of the riveting process-and are lightweight, making them ideal for weight-sensitive designs. Steel bodies, conversely, provide superior shear strength, making them suitable for heavy-duty structural applications. |
| Anti-Corrosion Surface Treatment | For outdoor or highly corrosive environments, we offer Dacromet, zinc-nickel plating, or anodizing treatments. This dense protective layer not only provides a bright, silvery finish but also penetrates the metal lattice to prevent electrochemical corrosion in humid or salt-spray environments, thereby extending the service life of the assembly. |
Detailed Display
Drill Point Configuration
The drill point at the end of the mandrel features precision-engineered cutting geometry-a centered tip, symmetrical cutting edges, and smooth chip evacuation flutes. Microscopic inspection reveals a uniform, heat-treated finish on the surface, free from edge chipping, cracks, or burrs.
Rivet Body Surface Quality
Formed via cold heading, the Pilot Point Blind Rivet body boasts a smooth surface free of scratches or folds. The flange face is flat and rounded, ensuring uniform contact with the workpiece without damaging coated surfaces.
Break-neck Groove Precision
The breakneck groove on the mandrel is precisely positioned with consistent depth and a smooth, rounded profile (free of sharp corners), ensuring stable and repeatable break-load performance and a clean fracture without sharp fragments.
Locking Head Formation (Post-installation)
Upon installation, the blind-side end of the Sharp Point Blind Rivet body forms a full, symmetrical locking head free from cracking, misalignment, or looseness. The locking head sits flush against the rear of the workpiece, ensuring uniform load distribution.
Application Advantages
Industrial Manufacturing
Assembly of electrical cabinets, control boxes, outdoor air conditioning units, and equipment racks.
01
Construction and Curtain Walls
Joining and fastening of metal sheets, color-coated steel panels, and aluminum-plastic composite panels.
02
Automotive and Rail Transit
Fastening of thin-gauge body panels, interior components, and lightweight structures for the Pointed Blind Rivet.
03
Marine and Shipping Containers
Rapid assembly of cabin paneling and door/window frames.
04
New Energy Equipment
Metal structural connections for photovoltaic mounting systems, wind turbine cabinets, and energy storage systems.
05
contact us
Pre-Drill-Free Blind Rivet delivers high-efficiency, high-reliability fastening solutions for the automotive, new energy, electrical equipment, and engineering manufacturing sectors, leveraging a no-pre-drill design, a robust riveting structure, and industrial-grade manufacturing capabilities.
Whether you are developing a new project or optimizing an existing assembly process, we offer expert product selection support and customized engineering solutions tailored to your specific material combinations, fastening requirements, and production workflows-helping you achieve more efficient and stable product manufacturing.
Hot Tags: no pre-drill blind rivet, China no pre-drill blind rivet manufacturers, suppliers, factory, Ball End Grub Screw, Cross Recessed Screw, Dual End Screw, Self Cutting Metal Screws, Self Forming Screw, Slotted Cheese Head Screws
You Might Also Like
Send Inquiry