Since its establishment in 2002,
Zhangjiagang SMK MFG. Co., Ltd.
has specialized in cargo securing and control products, with over 20 years of experience in R&D and global export. The company operates three factories and a large-scale warehouse center, forming an efficient international supply network.
SMK is China XSTRAP 43420 Pintle Hook Factory and Custom XSTRAP 43420 Pintle Hook Suppliers. The product range includes tie-down straps, bungee cords, tow straps, lifting slings, hoists, and 4x4 accessories, widely used in transportation, logistics, outdoor, and industrial sectors. Its in-house brand XSTRAP enjoys strong recognition in global markets, alongside flexible OEM/ODM services for customized needs.
With over 8,000 sqm of production space, SMK is equipped with advanced automated lines and in-house testing labs, ensuring full-process quality control from raw material to finished goods. The company is ISO 9001 certified, SMETA audited, and has passed C-TPAT anti-terrorism inspections and multiple GS and patent certifications.
Looking ahead, SMK will continue to upgrade its cargo control systems, stay close to customer needs, and provide high-quality, efficient products and services worldwide.
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Product Description
This heavy duty pintle hook is a rugged towing coupling device for heavy load trailer connection.
- Material: Constructed from high strength forged steel. Black powder coated finish provides excellent resistance against rust, impact and abrasion for harsh working environments.
- Locking mechanism: Features spring loaded latch with safety chain and safety pin. The latch automatically closes after engaging the lunette ring; safety chain and pin prevent accidental opening and trailer decoupling during bumpy transportation.
- Mounting design: Bolt on installation design. Fixed onto mounting plate or trailer hitch with heavy duty bolts, stable connection and high structural strength.
- Working principle: Designed to pair with a lunette ring (drawbar ring). The hook jaw wraps around the lunette ring to realize articulated connection, allowing angular movement for rough road driving.
- High towing rating: Engineered for heavy weight towing capacity, built for commercial, industrial and off road heavy haul scenarios.
Product Application
- Heavy duty trailer towing: Used on pickup trucks, heavy duty vehicles and work trucks. Matches trailers fitted with lunette rings, such as farm trailers, equipment trailers, utility heavy haul trailers and military style trailers.
- Agricultural & construction field: Widely applied on farms, construction sites for transporting farming machinery, building materials and heavy duty cargo. Flexible articulation adapts to uneven dirt roads and rough terrain.
- Off road & rescue towing: Suitable for off road vehicles for recovery, rescue and heavy load off road hauling. Permits large horizontal and vertical pivoting angles when driving on uneven ground.
- Commercial fleet use: Ideal for commercial fleets that frequently pull heavy trailers.
Note: Must match the rated capacity of pintle hook, lunette ring and tow vehicle. Check bolts and safety latch before every trip.
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