Chenango Supply 5/16-18 x 4" Grade 8 Hex Head Bolts – Alloy Steel, Yellow Chromate Zinc, USS Coarse Thread, 150,000 PSI Tensile Strength,

Chenango Supply 5/16-18 x 4" Grade 8 Hex Head Bolts – Alloy Steel, Yellow Chromate Zinc, USS Coarse Thread, 150,000 PSI Tensile Strength,

GRADE 8 ALLOY STEEL CONSTRUCTION – Made from quenched and tempered alloy steel for dependable hardened strength in demanding environments, addressing customer demand for long-term durability. 5/16-18 USS COARSE THREAD – Standard 5/16-18 coarse thread provides reliable engagement for general construction, fabrication, repair, and equipment assembly applications. ENGINEERED MECHANICAL PROPERTIES – Rated at 150,000 PSI minimum tensile strength, supporting secure clamping and load retention in high-stress assemblies where hardened performance is required. GOOD FIT AND SIZE ACCURACY – Precise threading supports correct fit with standard 5/16-18 hardware, addressing customer expectations for sizing consistency in bolts used across jobsite and shop tasks. 50-PIECE INDUSTRIAL PACK – Bulk quantity supports maintenance teams, fabrication shops, installers, and MRO operations requiring dependable Grade 8 hex head bolts for recurring projects. Grade 8 alloy steel 5/16-18 x 4" hex head bolts engineered for heavy machinery, automotive repair, equipment fabrication, and industrial maintenance where high tensile strength and consistent thread engagement are essential.

Specifications
Material: Quenched and tempered alloy steel
Grade: Grade 8
Tensile strength: 150,000 PSI minimum
Finish: Yellow chromate zinc coating
Thread: 5/16-18 USS coarse thread
Size: 5/16-18 x 4 inches
Quantity: 50 pieces

Performance & Application Explanation
These hex head bolts are manufactured from quenched and tempered alloy steel to deliver hardened performance suitable for heavy machinery and automotive environments. The 5/16-18 USS coarse thread form provides strong engagement with standard nuts, improving assembly performance in structural, mechanical, and general fastening applications. The yellow chromate zinc coating adds corrosion resistance while allowing fast visual identification of Grade 8 hardware during assembly and inspection.

B2B Use Cases
Applicable for heavy machinery assembly, automotive repair, equipment fabrication, agricultural equipment, trailer assembly, and industrial maintenance applications where high-strength Grade 8 bolts are required.

Quality & Trust Reassurance
Thread sizing, material hardness, and tensile strength align with professional expectations for accuracy and durability. Designed for mechanics, fabricators, and maintenance teams seeking reliable Grade 8 hardware for high-stress fastening environments.