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 40721 Trailer Hitch Lock Pin, Fits 1-1/4" & 2" Square Receivers, 1/2" & 5/8" Pin Diameter Factory and Custom Xstrap 40721 Trailer Hitch Lock Pin, Fits 1-1/4" & 2" Square Receivers, 1/2" & 5/8" Pin Diameter 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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1. Product description:
40721 Hitch Lock Pin, Sleeved for 1/2 In. & 5/8 In. Receiver Holes, Pick Proof Square Key, Cushioned Grip, Rubber Dust Cap, for Class III and IV Trailer Receivers
2. About the item:
- Sleeved to fit both 1/2 In. and 5/8 In. receiver holes
- Pick proof square key design
- Cushioned grip
- Class Ill and IV
- Rubber cap keeps out dust
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