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Carbon steel hex bolt kit with nut and washer Grade 8.8

As a highly reliable alternative to stainless steel, our hot-dip galvanized (HDG) fasteners offer exceptional corrosion protection for demanding environments. To accommodate your specific project needs, our comprehensive range is available in a wide variety of sizes and technical specifications. Each fastener kit includes hex bolt, flat washer, spring washer and nut.

  • Item No :

    SN-HB-CS-MXX
  • Order(MOQ) :

    None
  • Product Origin :

    China
  • Shipping Port :

    Xiamen
  • Lead Time :

    7 days
  • Material :

    Carbon Steel
  • Product Description

Features:

  • Excellent Corrosion Resistance: The hot-dip galvanized coating effectively prevents rust and corrosion in harsh environments, significantly extending the bolt's service life.
  • Smooth & Aesthetic Finish: The zinc layer is uniformly applied, providing a smooth surface and a clean, professional appearance.
  • Superior Coating Adhesion: The zinc layer bonds tightly to the bolt's surface, ensuring it remains securely attached without peeling or flaking.

Specifications:

  • Size: M8, M10, M12, M14, M16, etc.
  • ISO Grade: 8/5.6/6.8/8.8/10.9/12.9
  • Material: Carbon steel 
  • Surface Finish: Black (plain/black); Electro-zinc-plated, Hot dip galvanized, Dacromet plated.
  • Standard: ASTM F1554, JIS B1178, ASTM A563M, ASTM F436M

 

Common Uses & Applications:

  • Structural Steel Frameworks: Joining heavy I-beams, columns, and trusses in commercial buildings, industrial warehouses, and factories.
  • Bridges and Highway Infrastructure: Fastening guardrails, overhead sign gantries, sound barriers, and modular steel bridge sections.
  • Transmission & Telecom Towers: Assembling lattice towers for power grids and cellular communication, which are highly vulnerable to wind-induced shear stress.
  • For large-scale outdoor steel structures, Grade 8.8 galvanized bolts provide the perfect balance of high load capacity and outdoor durability.
  • Solar Ground Mount Arrays: Securing the heavy steel piles, purlins, and rafters of utility-scale ground-mounted solar fields.
  • Commercial Carports: Fastening the heavy-gauge steel columns and cantilever arms of large vehicle parking shelters.
  • Industrial Walkways & Mezzanines: Assembling outdoor steel staircases, staging platforms, and fire escapes.
  • The combination of high tensile strength and impact resistance makes Grade 8.8 essential for heavy equipment operating in rough environments.
  • Farming Equipment: Assembling chassis, towing hitches, and structural brackets on tractors, harvesters, and plows.
  • Silos & Storage Bins: Bolting together the corrugated galvanized steel panels of large grain silos and fluid storage tanks.
  • Mining & Earthmoving Equipment: Used in the non-engine structural frames of conveyors, crushers, and sorting screens.
  • Inside heavy industrial facilities, these bolts hold together the heavy machinery foundations and fluid transport networks.
  • Pipe Supports & Rack Systems: Securing massive overhead pipe racks and heavy-duty hangers in oil refineries, chemical plants, and power stations.
  • Heavy Equipment Anchoring: Bolting down vibrating machinery, pumps, and generators to concrete foundations (used alongside galvanized anchor channels).

 

 

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