Flat Head Hexagonal Rivet Nut

The Flat Head Hexagonal Rivet Nut supplied by Wanluo Factory is a new type of embedded threaded fastener that has been iteratively upgraded for high-torque and high-vibration industrial assembly scenarios. It is a structurally optimized version of the traditional anti-slip rivet nut. It discards the passive anti-loosening logic of the conventional embossed style that relies on the friction of the pattern to prevent loosening. Instead, this product adopts an overall hexagonal outer contour structure and achieves a rigid anti-torsion effect through a physical locking mechanism, specifically addressing the pain points of nut slipping, idling, and connection failure under high-intensity locking and long-term vibration conditions of equipment.

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Product Description

The China Flat Head Hexagonal Rivet Nut produced by Wanluo manufacturer can quickly form standard internal threads on thin plates, hollow tubes, and non-weldable workpieces. With its flat head positioning design, it ensures a flat and smooth surface after installation, balancing both aesthetic appearance and structural reliability. It is a highly stable threaded reinforcement solution for industrial heavy-duty and high-vibration equipment assembly.

Why choose this product?

1. The hexagonal rigid positioning ensures complete elimination of high-torque idling.

2. It has higher shear and torsion resistance, making it more stable in heavy-load conditions.

3. The seamless countersunk installation is suitable for flat assembly requirements.

4. The high-precision rolled threads can withstand frequent disassembly.

5. The material is suitable for a wide range of working conditions, with excellent fatigue resistance and corrosion resistance.

Produce Technology

The flat head hexagonal rivet nut adopts integral precision cold forging, one-piece hex forming and high-precision thread rolling technology, composed of flat countersunk head, standard hexagonal positioning body and dense internal thread section. The standardized hexagonal outer diameter matches industrial standard hexagonal reserved holes perfectly, realizing precise physical clamping and positioning without deviation. Compared with knurled anti-slip structure, the hexagonal limit structure has stronger shear resistance and torsion resistance, never slipping or rotating during high-strength bolt locking and long-term equipment operation. The flat sinking head is smoothly polished without burrs, ensuring a flat and tidy workpiece surface after installation without assembly interference. The precision rolled internal thread has uniform tooth pitch, high matching precision and strong bearing capacity, supporting frequent disassembly and locking. Manufactured from high-quality aluminum alloy, galvanized carbon steel and stainless steel materials, the product undergoes integral hardening and anti-corrosion treatment, with stable structural toughness and excellent fatigue resistance, adapting to long-term high-load and high-vibration working environments.

Product Parameter

Parameter Item	Detailed Specification
Product Name	Flat Head Hexagonal Rivet Nut, Hex Body Rivnut, Countersunk Hex Threaded Insert Nut
Executive Standard	DIN Standard, ISO Standard, GB Standard, Custom Non-standard Sizes
Available Material	Aluminum Alloy, 304/316 Stainless Steel, Galvanized Carbon Steel
Size Range	M3-M12 full standard thread sizes, customized body length and hex specification
Structure Type	Flat countersunk flush head, hexagonal physical anti-rotation body, precision internal thread structure
Processing Technology	Precision cold forging, integral hex forming, thread rolling, surface deburring & anti-oxidation treatment
Applicable Workpiece	Thin metal plates, aluminum profiles, hollow pipe fittings, equipment shells, hexagonal pre-hole structures
Surface Treatment	Anodizing, color zinc plating, hot-dip galvanizing, passivation anti-corrosion treatment
Mechanical Properties	100% physical anti-rotation, ultra-high torque resistance, strong pull-out resistance, stable repeated threading
Packaging Method	Moisture-proof inner bag + export carton, pallet packing for bulk engineering orders
Supply Service	Spot bulk supply, non-standard customization, one-stop fastener supporting procurement

Flat Head Hexagonal Rivet Nut

Thread Size d		M4	M4	M5	M6	M8	M10	M10
d	BSW/UNC	#8-32 UNC	5/32-32 BSW	3/16-24 BSW	1/4-20 UNC	5/16-18 UNC	3/8-16 BSW	3/8-16 BSW
s	Nominal Size	5.9	5.9	6.9	8.9	10.9	12.9	11.9
	max	5.97	5.97	6.97	8.97	10.97	12.97	11.97
	min	5.7	5.7	6.7	8.7	10.7	12.7	11.7
d_k	Nominal Size	9	9	10	12.7	16	17	14.5
	max	9.3	9.3	10.3	13	16.3	17.3	14.8
	min	8.7	8.7	9.7	12.4	15.7	16.7	14.2
k	Nominal Size	1	1	1	1.5	1.5	1.7	1.7
	max	1.2	1.2	1.2	1.7	1.7	1.9	1.9
	min	0.8	0.8	0.8	1.3	1.3	1.5	1.5
L	Nominal Size	11	11	13	15	18	20	20
	max	11.3	11.3	13.3	15.3	18.3	20.3	20.3
	min	10.7	10.7	12.7	14.7	17.7	19.7	19.7
t		0.5~2	0.5~2	0.5~2.5	0.5~3	1~3	2~3.5	2~3.5

Application scenario

1. Vibration-type mechanical equipment assembly

Our Flat Head Hexagonal Rivet Nut is widely used for the connection of sheet metal and frames in automated equipment, transmission machinery, and vibration devices. It can stably lock the threaded points and prevent fasteners from loosening and falling off, ensuring the stability of equipment operation, especially for the continuous vibrations caused by the long-term operation of the equipment.

2. High-torque precision assembly scenarios

Suitable for the assembly of equipment components, tooling fixtures, and fixed brackets that require high-torque locking. Ordinary anti-slip nuts are prone to slipping and failure under the force of torque, while the hexagonal positioning structure can fully lock and position throughout the process, meeting the high-precision and high-strength locking assembly standards.

3. Light and thin hollow profiles fixation

It specifically solves the problem of direct tapping and welding of hollow pipes, thin-walled aluminum plates, and lightweight steel plates. Without damaging the base material structure, it can generate high-strength threaded holes, suitable for lightweight frames, chassis shells, and aluminum profiles assembly.

4. Outdoor engineering and equipment durability assembly

With excellent anti-corrosion and anti-fatigue properties, it can be used for the threaded reinforcement of outdoor construction machinery, electromechanical equipment, and outdoor facilities. It can withstand sun exposure, rain, temperature changes, and is not prone to rust and loosening during long-term outdoor use, reducing the frequency of equipment maintenance.

5. Batch standardized industrial production

Standard hexagonal specifications are compatible with industrial prefabricated holes, ensuring precise assembly alignment, high forming consistency. It is suitable for batch standardized operations on assembly lines, with low installation error rate and high finished product yield, making it suitable for large-scale hardware assembly.

Standard Product Production Flow

1. Raw Material Screening & Component Inspection → 2. Forming Processing (Forging/Stamping/CNC/Casting/Laser Cutting) → 3. Precision Finishing & Deburring → 4. Thread Processing & Dimensional Calibration → 5. Heat Treatment (Hardness & Toughness Reinforcement) → 6. Surface Anti-Corrosion Treatment → 7. Multi-Item Performance Testing → 8. Defect Screening & Reinspection → 9. Dustproof Export Packaging → 10. Warehouse Storage & Arranged Shipment

Hot Tags: Flat Head Hexagonal Rivet Nut Supplier, Hexagonal Rivet Nuts Wholesale, Custom Rivet Nut Manufacturer

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