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DIN557 Square Nut Metric Carbon Steel Zinc Plated
Gangtong Zheli supplies DIN557 square nuts for industrial fastening. DIN557 Square Nut Metric Carbon Steel Zinc Plated stops spinning during tightening. M4-M10 sizes & multiple coatings available. Strict batch inspection ensures accurate dimensions and smooth threads for machinery, jigs and metal structures.
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ASTM A307 Grade A Carbon Steel Hex Bolt for General Industry
ASTM A307 Grade A Carbon Steel Hex Bolt for General Industry from Gangtong Zheli. Our hex bolts offer stable tensile strength, with multiple surface finishes and UNC sizes. Full material certificates available, delivering reliable and cost-effective fastening for various general industrial projects.
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ASTM A563 Heavy Hex Nut Carbon Steel Heavy Hexagon Nut
ASTM A563 Heavy Hex Nut Carbon Steel Heavy Hexagon Nut supplied by Ningbo Gangtong Zheli Fasteners Co., Ltd. This structural heavy hex nut matches ASTM A325 bolts. Grade C & DH available, with plain, black oxide, yellow zinc plated and HDG finishes. Ideal for steel structure and engineering assembly.
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ASTM A325 Heavy Hex Structural Bolt Carbon Steel High Tensile Bolt
ASTM A325 Heavy Hex Structural Bolt Carbon Steel High Tensile Bolt supplied by Ningbo Gangtong Zheli Fasteners Co., Ltd. This high strength carbon steel structural bolt meets ASTM A325 standard, with min 120ksi tensile strength. Available in black oxide, hot dip galvanized and Dacromet finishes. Widely used for bridges, steel buildings and heavy load structural joints.
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DIN934 Hexagon Nut Carbon Steel Stainless Steel Hex Nut
DIN934 Hexagon Nut Carbon Steel Stainless Steel Hex Nut supplied by Gangtong Zheli, is standard hex fastener matching hex bolts for machinery & construction. Finishes: black oxide, white blue zinc, color zinc, hot dip galvanized. Sizes M3-M64, strict QC, fast delivery and custom bulk order service.
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DIN6319 Spherical Washer Convex And Concave Self Aligning Washer
DIN6319 Spherical Washer Convex And Concave Self Aligning Washer by Ningbo Gangtong Zheli Fasteners Co., Ltd. This C&D pair fixes angular misalignment to stop bolt bending under heavy loads. Options: C45 steel, A2/A4 stainless steel. Surface: white blue zinc plated min5micron, black oxide, bright stainless. Fit for molds, machinery and hydraulic assemblies.
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