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Grade 8 Hex Cap Screws

  • Thread: Coarse
  • Finish: Yellow Zinc
  • With a tensile strength of 150,000 pounds per square inch, grade 8 hex cap screws are stronger than grade 5. 
  • This grade is heated similar to grade 5, but they are fully heat treated versus case hardened. 
  • Their strength makes them good candidates for tractor fabrication, suspension applications and other high demand fastening applications.
  • If you are looking for a larger size,  thread type, or finish, please give us a call or send us an email. 

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  • 3/8"-16 x 1-1/2" Hex Head Cap Screw-Grade 8

    3/8"-16 x 1-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.47 - $253.60
    $0.47 - $253.60
    $0.47 - $253.60
    $0.47

    Crafted from Alloy Steel, this high-quality Grade 8 3/8"-16 x 1-1/2" Hex Head Cap Screw boasts impressive strength and durability. Its exceptional ...

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    $0.47 - $253.60
    $0.47 - $253.60
    $0.47 - $253.60
    $0.47
  • 3/8"-16 x 1" Hex Head Cap Screw-Grade 8

    3/8"-16 x 1" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.37 - $261.56
    $0.37 - $261.56
    $0.37 - $261.56
    $0.37

    Constructed from Alloy Steel, this 3/8"-16 X 1" Hex Head Cap Screw is a top-quality Grade 8 product renowned for its exceptional resilience and rob...

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    $0.37 - $261.56
    $0.37 - $261.56
    $0.37 - $261.56
    $0.37
  • 5/8"-11 x 2" Hex Head Cap Screw-Grade 8

    5/8"-11 x 2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $1.57 - $219.88
    $1.57 - $219.88
    $1.57 - $219.88
    $1.57

    Constructed from Alloy Steel, this 5/8"-11 x 2" Hex Head Cap Screw is a top-quality Grade 8 product renowned for its remarkable durability and stre...

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    $1.57 - $219.88
    $1.57 - $219.88
    $1.57 - $219.88
    $1.57
  • 5/8"-11 x 1-1/2" Hex Head Cap Screw-Grade 8

    5/8"-11 x 1-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $1.33 - $211.88
    $1.33 - $211.88
    $1.33 - $211.88
    $1.33

    This 5/8"-11 x 1-1/2" hex head cap screw is constructed from alloy steel and is a top-quality Grade 8 product renowned for its remarkable durabilit...

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    $1.33 - $211.88
    $1.33 - $211.88
    $1.33 - $211.88
    $1.33
  • 5/16"-18 x 1" Hex Head Cap Screw

    5/16"-18 x 1" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.27 - $294.52
    $0.27 - $294.52
    $0.27 - $294.52
    $0.27

    Constructed from Alloy Steel, this 5/16"-18 X 1" Hex Head Cap Screw is a top-quality Grade 8 product renowned for its exceptional resilience and ro...

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    $0.27 - $294.52
    $0.27 - $294.52
    $0.27 - $294.52
    $0.27
  • 3/8"-16 x 2" Hex Head Cap Screw-Grade 8

    3/8"-16 x 2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.62 - $273.00
    $0.62 - $273.00
    $0.62 - $273.00
    $0.62

    This 3/8"-16 x 2" Hex Head Cap Screw is expertly made from Alloy Steel and is considered a top-quality Grade 8 product due to its exceptional durab...

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    $0.62 - $273.00
    $0.62 - $273.00
    $0.62 - $273.00
    $0.62
  • 1/2"-13 x 2" Hex Head Cap Screw-Grade 8

    1/2"-13 x 2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.96 - $228.40
    $0.96 - $228.40
    $0.96 - $228.40
    $0.96
    In stock

    Constructed from Alloy Steel, this 1/2"-13 x 2" Hex Head Cap Screw-Grade 8 is highly durable and offers exceptional strength. It is moisture and co...

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    $0.96 - $228.40
    $0.96 - $228.40
    $0.96 - $228.40
    $0.96
  • 1/2"-13 x 1-1/2" Hex Head Cap Screw-Grade 8

    1/2"-13 x 1-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.75 - $181.40
    $0.75 - $181.40
    $0.75 - $181.40
    $0.75
    In stock

    Constructed from Alloy Steel, this 1/2"-13 x 1-1/2" Hex Head Cap Screw-Grade 8 is known for its exceptional durability and strength. Its corrosion ...

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    $0.75 - $181.40
    $0.75 - $181.40
    $0.75 - $181.40
    $0.75
  • 5/16"-18 x 1-1/2" Hex Head Cap Screw

    5/16"-18 x 1-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.31 - $245.60
    $0.31 - $245.60
    $0.31 - $245.60
    $0.31

    This 5/16"-18 x 1-1/2" Hex Head Cap Screw, made from Alloy Steel, is a premium Grade 8 product known for its impressive durability and strength. It...

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    $0.31 - $245.60
    $0.31 - $245.60
    $0.31 - $245.60
    $0.31

  • 7/16"-14 X 1-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.70 - $277.20
    $0.70 - $277.20
    $0.70 - $277.20
    $0.70

    This 7/16"-14 X 1-1/2" Hex Head Cap Screw is made from high-quality Alloy Steel, known for its outstanding strength and durability as a Grade 8 fas...

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    $0.70 - $277.20
    $0.70 - $277.20
    $0.70 - $277.20
    $0.70
  • 7/16"-14 X 1" Hex Head Cap Screw-Grade 8

    7/16"-14 X 1" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.54 - $280.88
    $0.54 - $280.88
    $0.54 - $280.88
    $0.54

    This 7/16"-14 X 1" Hex Head Cap Screw is fabricated from Alloy Steel, providing a superior Grade 8 quality known for its remarkable toughness and r...

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    $0.54 - $280.88
    $0.54 - $280.88
    $0.54 - $280.88
    $0.54
  • 5/16"-18 x 1/2" Hex Head Cap Screw

    5/16"-18 x 1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.19 - $299.12
    $0.19 - $299.12
    $0.19 - $299.12
    $0.19

    Designed with Alloy Steel, this Grade 8 product is a 5/16"-18 x 1/2" Hex Head Cap Screw widely recognized for its strength and durability. Its abil...

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    $0.19 - $299.12
    $0.19 - $299.12
    $0.19 - $299.12
    $0.19
  • 1/4"-20 x 3/4" Hex Head Cap Screw

    1/4"-20 x 3/4" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.13 - $442.28
    $0.13 - $442.28
    $0.13 - $442.28
    $0.13

    Crafted from Alloy Steel, this Grade 8 1/4"-20 x 3/4" Hex Head Cap Screw boasts impressive durability and strength. Its resistance to corrosion and...

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    $0.13 - $442.28
    $0.13 - $442.28
    $0.13 - $442.28
    $0.13
  • 1/4"-20 x 3" Hex Head Cap Screw

    1/4"-20 x 3" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.39 - $362.84
    $0.39 - $362.84
    $0.39 - $362.84
    $0.39
    In stock

    Crafted from Alloy Steel, this 1/4"-20 x 3" Hex Head Cap Screw has a Grade 8 quality that boasts exceptional durability and strength. Its resistanc...

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    $0.39 - $362.84
    $0.39 - $362.84
    $0.39 - $362.84
    $0.39
  • 1/2"-13 x 4" Hex Head Cap Screw-Grade 8

    1/2"-13 x 4" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $2.06 - $247.00
    $2.06 - $247.00
    $2.06 - $247.00
    $2.06
    In stock

    Constructed from Alloy Steel, this 1/2"-13 x 4" Hex Head Cap Screw-Grade 8 provides exceptional durability and strength, making it a highly desirab...

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    $2.06 - $247.00
    $2.06 - $247.00
    $2.06 - $247.00
    $2.06
  • 3/4"-10 X 2-1/2" Hex Head Cap Screw-Grade 8

    3/4"-10 X 2-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $3.53 - $254.28
    $3.53 - $254.28
    $3.53 - $254.28
    $3.53

    Constructed from Alloy Steel, this 3/4"-10 X 2-1/2" Grade 8 Hex Head Cap Screw is renowned for its exceptional sturdiness and robustness. Its corro...

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    $3.53 - $254.28
    $3.53 - $254.28
    $3.53 - $254.28
    $3.53
  • 5/8"-11 x 4" Hex Head Cap Screw-Grade 8

    5/8"-11 x 4" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $3.33 - $239.72
    $3.33 - $239.72
    $3.33 - $239.72
    $3.33

    This 5/8"-11 x 4" Hex Head Cap Screw is constructed from Alloy Steel and is classified as a top-tier Grade 8 item renowned for its remarkable resil...

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    $3.33 - $239.72
    $3.33 - $239.72
    $3.33 - $239.72
    $3.33
  • 5/8"-11 x 2-1/2" Hex Head Cap Screw-Grade 8

    5/8"-11 x 2-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $1.88 - $187.32
    $1.88 - $187.32
    $1.88 - $187.32
    $1.88

    This 5/8"-11 x 2-1/2" Hex Head Cap Screw is crafted from Alloy Steel, offering superior durability and strength as a premium Grade 8 product. Its i...

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    $1.88 - $187.32
    $1.88 - $187.32
    $1.88 - $187.32
    $1.88
  • 3/8"-16 x 3/4" Hex Head Cap Screw

    3/8"-16 x 3/4" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.30 - $262.28
    $0.30 - $262.28
    $0.30 - $262.28
    $0.30

    Created with Alloy Steel, this premium Grade 8 3/8"-16 x 3/4" Hex Head Cap Screw is widely recognized for its impressive durability and strength. I...

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    $0.30 - $262.28
    $0.30 - $262.28
    $0.30 - $262.28
    $0.30
  • 5/16"-18 x 3/4" Hex Head Cap Screw

    5/16"-18 x 3/4" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.21 - $272.32
    $0.21 - $272.32
    $0.21 - $272.32
    $0.21

    This 5/16"-18 x 3/4" Hex Head Cap Screw, made from Alloy Steel, is renowned for its exceptional resilience and robustness as a top-quality Grade 8 ...

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    $0.21 - $272.32
    $0.21 - $272.32
    $0.21 - $272.32
    $0.21
  • 5/16"-18 x 2" Hex Head Cap Screw

    5/16"-18 x 2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.39 - $250.72
    $0.39 - $250.72
    $0.39 - $250.72
    $0.39

    This 5/16"-18 x 2" Hex Head Cap Screw is crafted from Alloy Steel, a premier Grade 8 material known for its exceptional durability and strength. It...

    View full details
    $0.39 - $250.72
    $0.39 - $250.72
    $0.39 - $250.72
    $0.39
  • 1/4"-20 x 2-1/2" Hex Head Cap Screw

    1/4"-20 x 2-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.33 - $368.28
    $0.33 - $368.28
    $0.33 - $368.28
    $0.33
    In stock

    Crafted from Alloy Steel, this Grade 8 1/4"-20 x 2-1/2" Hex Head Cap Screw is renowned for its robustness and endurance. It boasts exceptional resi...

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    $0.33 - $368.28
    $0.33 - $368.28
    $0.33 - $368.28
    $0.33
  • 7/16"-14 X 3/4" Hex Head Cap Screw-Grade 8

    7/16"-14 X 3/4" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $0.49 - $367.50
    $0.49 - $367.50
    $0.49 - $367.50
    $0.49

    This 7/16"-14 X 3/4" Hex Head Cap Screw is made of Alloy Steel, ensuring a Grade 8 standard known for its impressive strength and durability. Its r...

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    $0.49 - $367.50
    $0.49 - $367.50
    $0.49 - $367.50
    $0.49
  • 3/4"-10 X 3-1/2" Hex Head Cap Screw-Grade 8

    3/4"-10 X 3-1/2" Hex Head Cap Screw-Grade 8

    industrialassortments.com
    $4.59 - $257.00
    $4.59 - $257.00
    $4.59 - $257.00
    $4.59

    Constructed from robust Alloy Steel, the 3/4"-10 X 3-1/2" Hex Head Cap Screw is a top-of-the-line Grade 8 product renowned for its exceptional toug...

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    $4.59 - $257.00
    $4.59 - $257.00
    $4.59 - $257.00
    $4.59

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