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Steel Hex Bolt, Grade 8, Zinc Yellow-Chromate Plated Finish, Flange Hex Head, External Hex Drive, Meets IFI 111/SAE J429, Flanged, Non-Serrated, 2-3/4" Length, Partially Threaded, 3/8"-16 UNC Threads, Imported (Pack of 10)

Product ID : 29886817

Galleon Product ID 29886817
Shipping Weight 1.1 lbs
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Model 37C275BFL8Y
Manufacturer Small Parts
Shipping Dimension 4.29 x 3.31 x 1.3 inches
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  • Grade 8 steel is often used in applications where strength is the primary concern
  • Zinc yellow-chromate plating offers good corrosion resistance
  • Flange hex head has a non-serrated flange for additional grip with the mating surface
  • Meets IFI 111 and SAE J429 specifications


The grade 8 steel hex bolt has a zinc yellow-chromate plated finish, has a non-serrated flange hex head with an external hex drive, and meets Industrial Fasteners Institute IFI 111 and Society of Automotive Engineers SAE J429 specifications. Grade 8 steel, composed of quenched and tempered medium carbon alloy steel, is stronger than grade 5 steel and is often used in applications where strength is the primary concern. The material is magnetic. The zinc yellow-chromate plating offers good corrosion resistance. The flange hex head has six flat sides that wrenches can grip to turn from the side, enabling use when there is no space above the head for a screwdriver. The non-serrated flange acts like a washer to increase the fastener's bearing surface and distribute the clamping force over a larger area, providing grip and reducing damage to mating surfaces. Cap screws and hex bolts are threaded fasteners with thick hex-shaped heads that can be used with threaded nuts or in areas with limited clearance above the tapped (threaded) hole. Cap screws have slightly different dimensions than hex bolts and have a washer face underneath their unflanged hex head to act as a large bearing surface against the mating material.