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304/316 Stainless Steel Carabiner Clips Spring Snap Hook with Screw Lock Heavy Duty Quick Link for Keychain Camping Marine & Rigging

Name: Stainless Steel Carabiner / Spring Snap Hook (Carabiner / Spring Snap Hook / Quick Link)
Material: AISI 304/316 stainless steel (corrosion resistant, rust resistant), Q235 carbon steel
Standards: GB/T 25854, EN 362, ASTM F1194
Grade: Stainless steel A2-70 (304) / A4-80 (316), Carbon steel 4.8 grade / 8.8 grade
Specifications:50mm-200mm (customizable)
Surface Treatment: Natural polishing (no additional coating, corrosion resistant), electro-galvanized / Hot-dip galvanizing (optional, enhanced rust resistance)
Design Features: Multiple structure options, one-button opening and closing design, lockable anti-loosening design, corrosion-resistant stainless steel, high load-bearing capacity
Applications: Outdoor recreation, marine engineering, industrial hoisting, construction engineering, general assembly
Delivery Time: 15-30 days after receiving advance payment
Origin: China
Brand: JGD
Minimum Order Quantity: 10,000 pieces, negotiable
Samples: Available
Packaging: Boxed/Bulk/Pallet or customized packaging
OEM: Available

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Key Features

Our stainless steel carabiners / spring snap hooks (also known as quick links, safety hooks, or snap connectors) are available in AISI 304/316 stainless steel (A2-70/A4-80) or carbon steel Q235 (Grade 4.8/8.8). One‑hand opening design: press the spring arm with one hand to open the gate, release it and the gate automatically closes – allowing quick connection of ropes, chains, or lifting points. Locking anti‑loosening structure (threaded sleeve or self‑locking gate) prevents accidental opening, complying with EN 362 and ASTM F1194 standards. Size range covers length 50mm‑200mm, with breaking strengths up to 25kN (approx. 2.5 tonnes). Installation requires no tools – suitable for outdoor climbing, marine mooring, industrial lifting, and construction temporary anchoring.

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Precision Manufacturing Process

We use a precision casting + cold forming composite process. For stainless steel, silica sol investment casting forms the body and spring arm in one step, achieving dimensional accuracy of CT6 grade with a smooth, porosity‑free surface. Carbon steel versions are hot forged followed by fine blanking. The spring arm undergoes vacuum heat treatment to obtain constant elasticity, with gate life cycle tested to ≥5,000 operations. Threaded parts of the locking mechanism are CNC machined or rolled. Surface finishing: stainless steel parts are electrolytically polished and passivated; carbon steel parts are electro‑galvanized (8‑12μm) or hot‑dip galvanized (≥50μm). Every batch passes magnetic particle inspection (for micro‑cracks) and breaking strength testing (≥4 times the safe working load). Gates are tested under transverse and longitudinal loads to ensure fall‑arrest reliability.

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Transparency & Customization

Each batch of carabiners comes with a full inspection report (material spectroscopy, hardness, breaking strength, gate spring test curve). The package QR code traces back to the casting heat number, heat treatment batch, and operator. Our website shows elastic fatigue test videos and typical failure cases (e.g., gate deformation, corrosion jamming).

Customization options: Accept non‑standard length, gate opening width, and gate color (anodized). End types available: pointed hook, round hook, triple ring. Locking styles can be customized: screw lock, lever lock, or auto double lock. Surface treatment offers a “marine package”: 316 stainless steel + partial PTFE coating to resist seawater adhesion.

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One-Click Opening & Closing · Locked Anti-slip

Made of 304/316 stainless steel, A4 grade corrosion resistant. The spring arm features one-touch opening and closing with a locking anti-loosening design, conforming to EN 362 standards. Suitable for outdoor rock climbing, ship mooring, industrial lifting, and construction anchoring. With a load capacity of up to 25kN, it offers quick and safe connection.

product details

JGD Service

Manufacturing Process

• Multi Station Cold Heading Technology

• Intelligent Heat Treatment System

• Micron-Level Thread Rolling Process

• Fully Automatic Optical Sorting

• Environmentally Friendly Surface Treatment Line

• Metallographic And Mechanical Joint Laboratory

Quality Control System

• Raw Material Source Locking

• Furnace Number Batch Full Traceability

• Third Party Material Certification

• Process Parameters Open And Transparent

• Salt Spray Test Real Time Monitoring

• International Standard Compliance Declaration

Flexible Customization Capability

• Customizable head/slot Shapes

• Extreme Application Of Special Materials

• Breakthroughs In Extra Large/Long Specifications

• Integrated Assembly Of Components

• Customizable Surface Treatment Colors

• Personalized Packaging And Labeling

Technical Service

• On-Site Failure Analysis

• Selection Calculation And BOM Optimization

• Installation Tool Selection Guidance

• Inventory Management (VMI) Trusteeship

• Free Sample Making And Testing

• International Standard Translation And Interpretation

Multi-Material & High Load Capacity for All Scenarios

Made of AISI 304/316 stainless steel or carbon steel, the 316 version resists salt spray corrosion, while carbon steel can be galvanized for enhanced rust protection. With sizes from 50mm to 200mm and a breaking strength up to 25kN, they deliver reliable load-bearing performance for marine, outdoor, and lifting applications.

Quick-Open & Locking Design for Safety & Efficiency

The one-touch spring gate allows easy opening with automatic rebound locking. Optional screw-locking or self-locking gates prevent accidental disengagement, meeting safety standards like EN 362. Tool-free single-hand operation balances convenience and anti-loosening security.

Versatile Multi-Structure Design for Diverse Connections

Multiple designs (basic, locking, eye-ended) fit ropes, chains, and anchor points. Polished stainless steel versions work in humid, salt spray environments without coating contamination, while carbon steel options offer excellent rust and wear resistance for outdoor, marine, and industrial lifting use.

Application Scenarios

High-Quality Stainless Steel Carabiner Display

Precision Fastening, Engineered for the Future – Chengdu Jingguda Trading Co., Ltd., Your Trusted High-Quality Fastener Expert

Chengdu Jingguda Trading Co., Ltd. is a professional fastener manufacturer integrating R&D, production, and sales. We specialize in high-precision, high-strength bolts, nuts, washers, and non-standard customized fasteners, covering international standards such as GB, DIN, ISO, ANSI, and ASME. Equipped with multi-station cold heading machines, high-speed thread rolling machines, fully automated heat treatment lines, and surface treatment equipment, we also operate an in-house laboratory featuring spectrometers, hardness testers, tensile testing machines, and salt spray testers to ensure strict quality control from raw materials to finished products. Our products are widely used in industrial machinery, renewable energy, automotive manufacturing, rail transportation, and more, known for their precision, corrosion resistance, and durability. Committed to “Fast Delivery, Professional Support,” we provide one-on-one customized solutions and efficient logistics, striving to be your ideal partner for reliable connections.

Industrial Capabilities

• Factory Area: 8,000 square meters

• Certifications: ISO, IATF, CE, RoHS, JIS, ASTM

• Manufacturing : 70+ internationally advanced production lines

• Testing: 30+ sets of precision quality testing equipment

• Annual Output: Up to 50,000,000 tons

From Raw Materials to Completed Goods

Closed-loop manufacturing from raw material to final product is made possible by our factory's fully automated production lines for cold heading, precision thread rolling, controlled-atmosphere heat treatment, and eco-friendly surface finishing. Each fastener satisfies strict requirements for strength, accuracy, and surface quality because of inline optical sorting and a digital MES. You promise trustworthy, effective, and environmentally friendly fasteners of the highest caliber.

Lab for Innovation:

Do you have a project underway? Now let's get going. We are always looking for new ideas, and expertise and teamwork are what propel our progress. Are you working on a project? Now let's get going.

The Complete Joint R&D Process: "Pain Point Diagnosis" to "Customized Implementation"

We offer more than just ordinary parts. Our multicultural engineering team actively works together from the start of your project. To ensure that creative concepts are swiftly translated into workable solutions that lower total lifecycle costs, we carefully examine the application context and tailor solutions in the lab, seamlessly fusing technology and application.

Integrated Verification System: Ensuring Innovation with "Test Data"

The creative process doesn't finish at the drawing board. Through our in-house technical center, we provide one-stop verification for anything from corrosion testing to prototype creation. Through extensive simulated working condition tests, we use empirical data to confirm the performance stability of tailored solutions. This significantly reduces project risks while also attaining truly reliable cost reduction and efficiency improvement.

Rapid Service Response

Intelligently arrange production using digital quality control and agile supply chains to reduce bulk order delivery time by 30% following confirmation; use self-developed molds and flexible manufacturing lines to complete sample and delivery within 7 days. You could benefit from market opportunities for both standard bolts and custom-shaped parts with our "Demand-Solution-Sampling-Production" closed-loop technology.