quality Stainless Steel Inverted Edge Square Lock Nut Docking Clamp Plate Screw Cap Class 4.8 6.8 factory

Stainless Steel Inverted Edge Square Lock Nut Docking Clamp Plate Screw Cap Class 4.8 6.8

Name: Stainless Steel Inverted Edge Square Lock Nut Docking Clamp Plate Screw Cap Class 4.8 6.8
Brand: Jiaxing Xinchuang Hardware Co., Ltd.
SKU: M3-M20
Price: 0.12 USD
Availability: InStock

country of origin

Zhejing,China

Brand Name

PRODUCT MODEL

M3-M20

MOQ

500KG

unit price

$0.12-1/pcs

payment method

L/C,D/A,D/P,T/T

Supply Capacity

Monthly Capacity: 500 tons

Product Details

Highlight:

Inverted Edge Square Lock Nut

Stainless Steel Square Lock Nut

Class 4.8 Square Lock Nut

Material: Stainless Steel 304/316

Thread Size: M4/M5/M6/M8/M10/M12

Head Style: Inverted Edge Square Head

Locking Structure: Square Anti-loose Lock Mechanism

Thread Type: Coarse Thread / Fine Thread Optional

Application: Machinery, Cabinet, Construction Fastening

Product Description

Detailed Specifications & Features

Stainless Steel Inverted Edge Square Lock Nut Docking Clamp Plate Screw Cap Natural Color Class 4.8 6.8

Stainless Steel Inverted Edge Square Lock Nut Docking Clamp Plate Screw Cap Natural Color Class 4.8 6.8

Measurement System	Metric, Imperial (Inch), Other
Grade	Class 4/6/8/10/12
Nut Shape	Round
Thread Coverage	Fully Threaded
Thread Direction	Right Hand
Finish	Plain, Zinc Plated, Black Oxide, Galvanized, Zinc-Flake Coated, Chrome Plated, Yellow Zinc
Application	Heavy Industry, Mining, Water Treatment, Healthcare, Retail Industry, Food & Beverage
Locking Mechanism	Self-Locking
Hole Diameter	3mm-20mm
Body Type	Round
Intended Use	Nut for Pipe Nipple (Gas Installation)
Place of Origin	Zhejiang, China
Model Number	Flat Head Inverted Edge Square Lock Nut
Nut Type	Flat Head Inverted Edge Square Lock Nut
Standard	Flat Head Inverted Edge Square Lock Nut
Size	M3-M20
Finish Options	Black/Zinc Plated/Hot Dip Galvanized
Material	Low Carbon Steel/Medium Carbon Steel/Alloy Steel/Stainless Steel
Delivery Time	Normally in 30-40 days
Type	Precision Nonstandard Parts (OEM Service)
Quality	100% Professional Test
Product Name	Flat Head Inverted Edge Square Lock Nut

Product Highlights

Premium Material

Crafted from high-quality 304 stainless steel, this wholesale product boasts superior corrosion resistance and durability, ensuring long-lasting performance in various heavy industrial applications.

Secure Locking Mechanism

The product features a flange-locking mechanism, providing stable and reliable fastening, making it ideal for demanding environments where efficiency and safety are crucial.

Versatile Design

The versatile design allows for easy compatibility with a wide range of socket sizes and applications, catering to various industrial needs. The inverted edge hexagonal design offers improved grip and faster installation.

Robust Construction

With a solid screw length of 90mm and a total length of 90mm, the robust construction guarantees exceptional strength and resistance under heavy loads, making it suitable for heavy-duty tasks across different industries.

Professional Appearance

The sleek, black color and square nut shape contribute to a professional and polished appearance, enhancing the overall aesthetic appeal of the product while maintaining its durability and functionality.

Technical Information

What is a Head Inverted Edge Square Lock Nut?

Head Inverted Edge Square Lock Nut is a high-precision anti-loosening industrial fastener optimized for vibration-intensive equipment assembly. Different from ordinary hexagonal nuts and standard square nuts, it adopts a unique inverted edge square head design and built-in anti-loose thread structure. The inverted edge structure can closely fit the mounting surface, avoid offset shaking, and provide stronger clamping stability. It is a professional locking nut specially developed for mechanical vibration, load-bearing fastening and fixed anti-loosening scenarios.

What are the core advantages compared with ordinary standard nuts?

This square lock nut has three verified industrial advantages that ordinary nuts cannot match:

Excellent Vibration Resistance & Anti-loosening Performance: The inverted edge fits tightly with the installation base surface, eliminating assembly gaps. Combined with precision thread matching, it effectively prevents nut loosening and falling off caused by long-term mechanical vibration and equipment operation impact.
Higher Positioning Stability: The square head structure provides directional limit positioning, which can prevent the nut from rotating and slipping during equipment operation. It maintains fixed fastening position for a long time and improves the overall assembly accuracy of mechanical parts.
Flat & Tight Mounting: The inverted edge design makes the nut attach more closely to the workpiece surface, no protruding gaps, uniform bearing force, and avoids local pressure deformation of metal parts.

Do you support personalized customization and private labeling?

Yes. We provide full OEM and ODM customized services. Support non-standard size customization, fine thread special customization, special surface anti-rust treatment, laser head logo marking, private label sticker, QR code packaging and multilingual instruction configuration. Both small-batch trial orders and large-scale bulk wholesale are acceptable with stable production capacity and fast delivery cycle.

About this supplier

Jiaxing Xinchuang Hardware Co., Ltd.

Your Trusted Global Partner for Premier OEM Fasteners and Custom Industrial Solutions

Established in 2025, Xinchuang has evolved into a leading global manufacturer dedicated to providing high-quality fasteners and industrial components at competitive prices. With over a decade of industry experience and a state-of-the-art production facility, we specialize in delivering both standard and non-standard solutions tailored to the rigorous demands of clients worldwide.

Our Expertise and Capabilities

We are a vertically integrated manufacturer covering production, plating/finishing, and global export. Our extensive product capabilities meet both imperial and metric standards across a wide range of sizes (M1 to M100) and grades (4.8, 6.8, 8.8, 10.9, 12.9).

Our core manufacturing competencies include:

Standard Fasteners: Screws, Nuts, Washers, Anchors, Pins, Keys, Threaded Rods, and Socket Screws
Materials & Finishes: High-grade Stainless Steel, Carbon Steel, with durable Zinc, Plain, and Galvanized finishing options

Customization and R&D Strengths (Made-to-Order)

What differentiates Xinchuang is our robust OEM/ODM capability. We operate primarily on a made-to-order basis, ensuring every batch is freshly manufactured to your exact specifications. Backed by a dedicated in-house R&D department and design team, we excel at engineering specially designed fasteners for unique project needs. If the specific product you require isn't standard, our experienced sales engineers will work with you to manufacture it.

Reliable Production and Service

We understand that project success relies on component caliber and timely delivery. Through efficient production management, we ensure reliable delivery times for production orders (typically 30-40 days). We are committed to providing extensive cost savings and supply chain security for our customers through consistent quality and dependable lead times.

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