Ji-Horng Plastic Co., Ltd. Heavy Duty Plastic Buckle
Heavy-duty plastic buckles differ from standard buckles in that they are typically thicker and engineered with reinforced structures, allowing them to withstand significantly greater tension and stress. These buckles are ideal for use in situations that demand high durability and secure fastening.
They are manufactured using high-strength polyacetal (POM) plastic, known for its excellent stiffness, hardness, and resistance to fatigue. The most commonly used size is 1 inch (25 mm), making them fully compatible with 1" (25 mm) webbing and straps.
Heavy-duty plastic buckles are widely used in various applications such as outdoor gear (backpacks, hiking equipment), tactical gear, pet harnesses, luggage straps, medical and mobility aids, and industrial safety products.
Ji-Horng offers a wide selection of heavy-duty side-release buckles in multiple sizes and styles. Please feel free to contact us if you are interested in any of our items!
Heavy Duty U.S Hook
Material：POM
Heavy duty plastic hook clip with stronger structure, which has better tensile strength to afford heavier goods or higher pulling force, the hook can swing back and forward smoothly, available in two sizes: 1.5" and 2".
Heavy Side Release Buckle
Material：POM
Plastic heavy duty side release buckle which has stronger tensile strength, including male part and female part, used as bag buckle, webbing adjuster, collar buckle, etc. This high-strength buckle has a thick and sturdy structural design that can maintain the buckle locked under high-intensity pulling force without loosening, 6 sizes available: 3/8", 5/8", 3/4", 1", 1-1/8", and 1-1/2".
Heavy Duty Side Release Buckle
Material：POM
Plastic heavy duty strong side release buckle, high strength guaranteed, including male part and female part, the tensile strength is over 300 lbs (around 140 kgs), tensile strength test report can be provided. This buckle accommodates 1-inch-wide webbing or strap with one side adjustable. Usages: life jacket buckle, cargo strap, pet collar buckle, backpack clasp, etc.
Heavy Curved Side Release Buckle
Material：POM
Plastic side release buckle with high tensile strength, can achieve 100~130 kgs breaking strength and afford repeated impact loads, for applications where high impact resistance is needed, such as pet collar of large dog, cargo strap, marine, safety equipment, etc.
Heavy Side Release Buckle
Material：POM
Plastic heavy duty strong side release buckle, including male part and female part.
This buckle accommodates 1-inch-wide and 3/4-inch-wide webbing or strap, non-adjustable, thus an additional webbing slide buckle is needed if you are going to adjust the length or tightness of the webbing.
Usages: life jacket buckle, pet collar buckle, backpack clasp, etc.
Heavy Side Release Buckle
Material：POM
Heavy-Duty Plastic Side Release Buckle. This robust side release buckle is composed of a male and female part designed for enhanced durability. Compared to standard plastic buckles, it delivers significantly greater strength, with a tensile capacity of up to 200 kg (approximately 450 lbs). Engineered for demanding applications, it offers superior performance and reliability where higher load-bearing capability is required. Ideal for outdoor gear and heavy-duty applications where safety and strength matter.
Heavy Tensionlock
Material：POM
Heavy duty plastic tension lock buckle, also known as ladder lock, strap slider, or tri-glide buckle, lightweight and durable, strong enough to afford extra strength, used for adjusting length or tightness of webbing or shoulder strap. Used as backpack strap adjuster, tactical chest bag, life jacket buckle, plastic component of outdoor equipment or camping gear, webbing adjuster of products which works with webbing, etc.