New Arrivals/Restock

Chenango Supply 3/8-16 x 1-1/4" Grade 8 Hex Head Bolts – Alloy Steel, Yellow Chromate Zinc, 150,000 PSI Tensile Strength, High-Strength Hex Head Cap Screws, (25 Pieces, 3/8-16 x 1.25 G8)

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Product details

Management number 229468839 Release Date 2026/05/31 List Price US$9.15 Model Number 229468839
Category

Grade 8 alloy steel 3/8-16 x 1-1/4" hex head cap screws engineered for automotive, heavy machinery, equipment assembly, and industrial fastening where high-strength performance and secure clamping are essential. Specifications Material: Quenched and tempered alloy steel Grade: Grade 8 Tensile strength: 150,000 PSI minimum Finish: Yellow chromate zinc coating Thread: 3/8-16 USS coarse thread Size: 3/8-16 x 1-1/4 inches Quantity: 25 pieces Performance & Application Explanation These hex head cap screws are manufactured from quenched and tempered alloy steel to deliver the hardened strength required for high-stress fastening environments. The 3/8-16 USS coarse thread form provides strong engagement with standard nuts, improving assembly performance in mechanical, automotive, and industrial applications. The yellow chromate zinc coating adds corrosion resistance and allows quick visual identification of Grade 8 hardware during installation and inspection. B2B Use Cases Applicable for automotive repair, heavy machinery assembly, equipment fabrication, agricultural machinery, construction equipment, and industrial maintenance environments where high-strength bolts are required. Quality & Trust Reassurance Thread sizing, material hardness, and heat treatment align with professional expectations for accuracy and durability. Designed for mechanics, fabricators, and maintenance teams seeking reliable Grade 8 hardware for high-load fastening applications.

  • GRADE 8 ALLOY STEEL CONSTRUCTION – Manufactured from quenched and tempered alloy steel to deliver high strength for demanding fastening applications where standard bolts are not sufficient.
  • 3/8-16 USS COARSE THREAD – Standard 3/8-16 coarse thread provides reliable engagement for heavy machinery, automotive, equipment assembly, and industrial maintenance applications.
  • ENGINEERED MECHANICAL PROPERTIES – Rated at 150,000 PSI minimum tensile strength, supporting secure clamping and joint integrity in high-stress fastening environments.
  • GOOD FIT AND SIZE ACCURACY – Precise threading supports correct fit with standard 3/8-16 hardware, addressing customer expectations for sizing consistency in bolts used across shop and field tasks.
  • 25-PIECE INDUSTRIAL PACK – Bulk quantity supports maintenance teams, fabrication shops, mechanics, and MRO operations requiring dependable Grade 8 hex head cap screws for recurring projects.
UPC 716715821549
ASIN B01IIOQJ36
Brand Chenango Supply
Color Yellow
Head Type Hex
Size Name 3/8-16x1-1/4" (25 pcs)
Metal Type Alloy Steel
Unit Count 25 Count
Part Number 03-C060125HP-25
Thread Size 3/8"-16
Thread Type Coarse Thread
Drive System External Hex
Finish Types Steel
Grade Rating Grade 8
Manufacturer Chenango Supply
Thread Style Right Hand
Fastener Size 3/8-16 x 1-1/4
Fastener Type Hexagon Bolt
Item Diameter 0.38 Inches
Item Hardness Grade 8
Material Type Metal
Exterior Finish Zinc
Thread Coverage Fully Threaded
Number of Pieces 25
Screw Head Style Hex
Screw Point Style Hex
Manufacturer Grade Grade 8
Set Screw Thread Type Unified National Coarse (UNC)
Compatible Groove Diameter 0.38 Inches

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