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Home Product 1/4-20x3-1/4 High-Strength Fastener, Corrosion-Resistant Bolts, Zinc-Plated Hex Screw, Grade 8 Threaded Hardware
US hexagon socket head cap 1/4-20*3-1/4

1/4-20x3-1/4 High-Strength Fastener, Corrosion-Resistant Bolts, Zinc-Plated Hex Screw, Grade 8 Threaded Hardware

1/4-20 x 3-1/4 Screw
1/4-20 Threaded Hex Bolt
3-1/4 Inch Machine Screw
1/4-20*3-1/4
1/4-20 x 3-1/4 Screw with hexagonal head, 1/4-20 Threaded Hex Bolt for industrial applications, 3-1/4 Inch Machine Screw in steel material, zinc-plated finish. Fully threaded fastener for machinery, automotive, and assembly projects.
Categories:Fasteners & Fixings
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Product Description

The 1/4-20 x 3-1/4 Screw is a precision-engineered 1/4-20 Threaded Hex Bolt with a 3-1/4 Inch Machine Screw length, designed for industrial fastening applications. Featuring a 1/4-inch nominal diameter and 20 threads per inch, it ensures secure connections in machinery, automotive assemblies, and structural frameworks. The hex head provides torque resistance, while the full-threaded design enhances load distribution. Constructed from high-grade steel with corrosion-resistant coatings, it operates reliably in temperatures from -40°C to 120°C. Ideal for high-vibration environments, this bolt supports tensile strengths up to 1500 psi. Limitations include compatibility only with 1/4-20 threaded nuts or pre-tapped holes. Its compact 3.25-inch length optimizes space-critical installations without compromising durability.
Parameter Specification
Thread Specification 1/4-20 UNC
Thread Diameter 0.250 Inch
Threads Per Inch 20
Nominal Length 3-1/4 Inch
Head Style Hex
Drive Type External Hexagon
Material Steel
Finish Zinc Plated (ASTM B633 Type II)
Tensile Strength 60,000 PSI (Grade 2)
Standards Compliance ASME B18.2.1
Hex Head Width 7/16 Inch
Overall Length Measurement Head to Tip
question:Why is the shipping cost so high? Are there more economical options?
answer:Shipping rates depend on destination, weight, and speed. We offer multiple carriers and can suggest cost-effective solutions based on your needs.
question:Do you provide technical selection services?
answer:Yes, we offer technical guidance to help you choose the right products tailored to your requirements and industry standards.
question:Why is there a service fee charged?
answer:A nominal service fee covers payment processing and administrative costs, ensuring seamless transactions and transparent pricing.
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:Why is the shipping cost so high? Are there more economical options?
answer:Shipping rates depend on destination, weight, and speed. We offer multiple carriers and can suggest cost-effective solutions based on your needs.
question:Do you provide technical selection services?
answer:Yes, we offer technical guidance to help you choose the right products tailored to your requirements and industry standards.
question:Why is there a service fee charged?
answer:A nominal service fee covers payment processing and administrative costs, ensuring seamless transactions and transparent pricing.
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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