M28x100mm Grade 8.8 Galvanized Hex Bolt TZN Heavy Duty Fastener GBT1228-91

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BrandHUAIBEI ZHONGFEN MINE MACHINERY CO LTDSKUAIG20261016001324001
CategoryIndustrial HardwareStock1.2kIn Stock
Unitpiece
Quality AssuredFast Dispatch7-Day ReturnsExpert Support

Product Overview

This M28 x 100 mm hexagon head bolt is manufactured to GBT1228-91 and supplied with a galvanized TZN corrosion-resistant finish. Designed as an OEM mining machinery fastener, the Grade 8.8 steel bolt provides high tensile strength for structural assemblies, equipment frames, conveyor systems, crusher components, and other heavy-duty industrial connections.

Key Features

  • Grade 8.8 high-strength carbon steel for reliable clamped joints
  • M28 thread size with 100 mm bolt length for heavy structural applications
  • Galvanized TZN coating offers corrosion and weather resistance
  • Hexagonal head enables secure wrenching and high torque installation
  • Manufactured according to GBT1228-91 fastener standard
  • Suitable for mining, construction, material handling, and machinery maintenance

Specifications

AttributeDetails
Product TypeHexagon Head Bolt
Part NumberGBT1228-91
Manufacturer DrawingNXZS25-00104
Position25
Thread SizeM28
Length100 mm
Property ClassGrade 8.8
Surface TreatmentTZN Galvanized
MaterialHigh-Strength Carbon Steel
Drive TypeExternal Hex
Application StandardGBT1228-91
BrandHuaibei Zhongfen Mine Machinery

Applications

  • Mining machinery and mineral processing equipment
  • Crusher, screen, conveyor, and hoisting assemblies
  • Structural steel connections and equipment frames
  • Construction machinery and heavy equipment maintenance
  • Industrial plants requiring high-strength corrosion-resistant fasteners

Package Contents

1 x M28 x 100 mm Grade 8.8 Galvanized TZN Hex Bolt. Nut and washer are not included unless separately ordered.