3/8"-16 x 4" Yellow Zinc Hex Head Cap Screw Grade 8
KL Jack & Co.

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

Code: 9941
$1.60
Out of Stock
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  • Call 603-224-7370 to reach a parts specialist

  • No Sales Tax in NH


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K.L. Jack & Co.

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

Grade 8 Hex Head Cap Screws are manufactured from medium carbon alloy steel that has been quenched and tempered for strength. Grade 8 is the highest grade offering of the SAE J429 classification with a minimum tensile strength exceeding that of Gr.5 by 25% to over 40%, depending on the diameter. Grade 8 HHCS are commonly used in heavy construction equipment, commercial vehicles and applications that demand a high strength fastener. Hex Head Cap screws feature an integral washer face under the head for a smooth bearing surface and a chamfered thread at the tip to allow for ease of assembly. They can be used in a threaded hole or mated with a nut in a through bolting application. Grade 8 bolts are identified by a head marking with 6 radial lines evenly spaced 60 degrees apart. They meet the material specification SAE J429 Grade 8 and can be supplied either in a plain finish or with a Zinc Yellow (Dichromate) plating with a chromate secondary layer that offers additional protection from corrosion and has an attractive yellow/gold appearance.

  • Full Size Proof Stress 120,000 psi
  • Minimum Yield strength 130,000 psi
  • Minimum Tensile strength 150,000 psi

  • Manufacturer KL Jack Quality Vendor
    Item Type Hex Cap Screw - Inch
    System of Measurement Inch
    Drive Type Hex
    Diameter 3/8"
    Length (inches) 4"
    Finish Yellow Zinc
    Grade 8
    Hardness RC 33-39 HRC
    Head Height 0.226" min / 0.243" max
    Head Style Hex
    Hex Size 9/16"
    Material Steel
    Proof Stress 120,000 PSI
    RoHS Compliant No
    Dimensional Specification ASME B18.2.1
    Finish Specification ASTM F1941 Fe/Zn
    Material Specification SAE J429
    Thread Specification ASME B1.1, UNC, Class 2A
    Supplier Part Number 13814
    Tensile Strength 150,000 PSI
    Thread Length 1"
    Threads Per Inch 16
    Thread Style Partial Thread
    Thread Type Coarse
    Suggested Installation Torque 39 lb-ft. (Value for Zinc Plated Threads)
    Yield Strength 130,000 PSI

    37C400HCS8Z


    Still looking for the perfect part? Having trouble finding it? 
    Call our product experts at 603-224-7370 and let us lend a hand.

    K.L. Jack & Co.

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

    Grade 8 Hex Head Cap Screws are manufactured from medium carbon alloy steel that has been quenched and tempered for strength. Grade 8 is the highest grade offering of the SAE J429 classification with a minimum tensile strength exceeding that of Gr.5 by 25% to over 40%, depending on the diameter. Grade 8 HHCS are commonly used in heavy construction equipment, commercial vehicles and applications that demand a high strength fastener. Hex Head Cap screws feature an integral washer face under the head for a smooth bearing surface and a chamfered thread at the tip to allow for ease of assembly. They can be used in a threaded hole or mated with a nut in a through bolting application. Grade 8 bolts are identified by a head marking with 6 radial lines evenly spaced 60 degrees apart. They meet the material specification SAE J429 Grade 8 and can be supplied either in a plain finish or with a Zinc Yellow (Dichromate) plating with a chromate secondary layer that offers additional protection from corrosion and has an attractive yellow/gold appearance.

  • Full Size Proof Stress 120,000 psi
  • Minimum Yield strength 130,000 psi
  • Minimum Tensile strength 150,000 psi

  • Manufacturer KL Jack Quality Vendor
    Item Type Hex Cap Screw - Inch
    System of Measurement Inch
    Drive Type Hex
    Diameter 3/8"
    Length (inches) 4"
    Finish Yellow Zinc
    Grade 8
    Hardness RC 33-39 HRC
    Head Height 0.226" min / 0.243" max
    Head Style Hex
    Hex Size 9/16"
    Material Steel
    Proof Stress 120,000 PSI
    RoHS Compliant No
    Dimensional Specification ASME B18.2.1
    Finish Specification ASTM F1941 Fe/Zn
    Material Specification SAE J429
    Thread Specification ASME B1.1, UNC, Class 2A
    Supplier Part Number 13814
    Tensile Strength 150,000 PSI
    Thread Length 1"
    Threads Per Inch 16
    Thread Style Partial Thread
    Thread Type Coarse
    Suggested Installation Torque 39 lb-ft. (Value for Zinc Plated Threads)
    Yield Strength 130,000 PSI

    37C400HCS8Z


    Still looking for the perfect part? Having trouble finding it? 
    Call our product experts at 603-224-7370 and let us lend a hand.

    Extras

    The following products are meant to be used or paired with the product above.

      Stainless Steel U-Bolt Kit (4 mounts) Stainless Steel U-Bolt Kit (4 mounts) Shop Now
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    Life-Time Galvanized 4 Tube Kit Life-Time Galvanized 4 Tube Kit Shop Now


    Still looking for the perfect part? Having trouble finding it? 
    Call our product experts at 603-224-7370 and let us lend a hand.


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    Berube’s Truck Accessories
    Attn: Privacy Compliance Officer
    2 Tallwood Drive
    Bow, NH 03304
    (603) 224-7370
    info@berubes.com


    Defective Products:
    Returns of defective products will receive replacement product in accordance to Manufacturer policy.

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    Returns of non-defective products must be in new resalable condition.

    Refund:

    • Returns up to 30 days from the date of purchase will be eligible for a 100% refund or store credit.
    • Returns 31 - 90 days from the date of purchase will be subject to a 20% restocking fee.
    • Returns over 90 days will be at the discretion of Berube’s Truck Accessories and be subject to a  25% or more restocking fee.
    • Shipping will not be refunded for returned products (unless shipped defective or incorrectly by fault of Berube’s Truck Accessories).
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    • Refunds will be in same payment form as purchase (i.e. refunded to credit/debit card used for purchase, if the original card is not available a store credit will be issued, cash for cash, if the purchase was made by check a refund will be issued after 14 days from the date of purchase). Returns without a receipt will only receive a store credit and may be subject to a restocking fee. Return policy is subject to change.


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