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Home Product 1/2-13x3 Zinc-Plated Hex Bolt | Heavy-Duty Fastener for Machinery & Automotive Applications
US hexagon socket head cap 1/2-13*3

1/2-13x3 Zinc-Plated Hex Bolt | Heavy-Duty Fastener for Machinery & Automotive Applications

1/2-13x3 bolt
UNC threaded rod
Grade 8 hex cap screw
1/2-13*3
1/2-13x3 bolt, UNC threaded rod, Grade 8 hex cap screw with heavy-duty construction, zinc-plated finish for corrosion resistance, designed for high-strength fastening applications in machinery, automotive, and industrial use.
Categories:Fasteners & Fixings
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Product Description

The 1/2-13x3 bolt is a heavy-duty UNC-threaded rod designed for high-stress applications, featuring a Grade 8 hex cap screw configuration for superior tensile strength (minimum 150 ksi) and durability. Manufactured from alloy steel with a zinc-plated finish, it provides corrosion resistance in temperatures ranging from -50°C to 150°C. This fastener is widely used in automotive, construction, and industrial machinery sectors for structural assembly, load-bearing joints, or mechanical linkages. Its 3-inch length and 1/2-inch diameter suit applications requiring robust clamping force. Key advantages include exceptional shear resistance, extended service life, and compatibility with standard UNC nuts. Limitations include potential galvanic corrosion in marine environments without additional coatings. The hex head design ensures secure torque application up to 250 lb-ft. Ideal for mounting heavy equipment, securing structural components, or reinforcing mechanical assemblies.
Parameter Specification
Product Type 1/2-13x3 Bolt
Thread Standard UNC #13 Coarse Thread
Nominal Diameter 0.500" (1/2 inch)
Thread Pitch 13 TPI (Threads Per Inch)
Length Under Head 3.000"
Material Grade Grade 8 (SAE J429)
Tensile Strength 150,000 PSI Min
Head Style Hex Cap (SAE J995)
Surface Finish Zinc Plated
Thread Length 1.750" (Inch Series Standard)
Hardness HRC 33-39
Proof Load 120,000 PSI
question:Do you accept payment after shipment?
answer:No, payment must be completed before shipment.
question:Can I schedule a self-pickup with the official courier?
answer:Yes, you can arrange self-pickup through our logistics partners.
question:Can the company provide upgraded or alternative models?
answer:Yes, we offer upgraded and alternative models based on availability.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Do you accept payment after shipment?
answer:No, payment must be completed before shipment.
question:Can I schedule a self-pickup with the official courier?
answer:Yes, you can arrange self-pickup through our logistics partners.
question:Can the company provide upgraded or alternative models?
answer:Yes, we offer upgraded and alternative models based on availability.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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