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Home Product 1/4-20*1-1/4 UNC Threaded Rod, Zinc Plated, High-Strength Steel, Machine Fasteners
US hexagon socket head cap 1/4-20*1-1/4

1/4-20*1-1/4 UNC Threaded Rod, Zinc Plated, High-Strength Steel, Machine Fasteners

1/4-20x1.25 screw
1/4-20 1.25 bolt
1/4-20 threaded fastener
1/4-20*1-1/4
1/4-20x1.25 screw and 1/4-20 1.25 bolt, heavy-duty 1/4-20 threaded fastener for machinery, construction, automotive, and DIY projects. Steel material with zinc-plated finish, corrosion-resistant, hex head design for easy installation.
Categories:Fasteners & Fixings
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Product Description

The 1/4-20x1.25 screw, also referred to as a 1/4-20 1.25 bolt, is a precision 1/4-20 threaded fastener designed for robust mechanical connections in industrial applications. Featuring a 1/4-inch nominal diameter with 20 threads per inch (TPI) and a length of 1.25 inches, it ensures compatibility with standard 1/4-20 threaded holes or nuts. Typically manufactured from corrosion-resistant materials like stainless steel or grade-8 carbon steel, this fastener operates reliably in temperatures ranging from -50°C to 250°C. Widely used in machinery assembly, automotive components, and structural frameworks, it offers high tensile strength (up to 150 ksi) and shear resistance. Key advantages include durability, standardized sizing, and ease of installation with common tools, though over-tightening may risk thread stripping. Ideal for applications requiring secure, vibration-resistant fastening in harsh environments.
Parameter Specification
Fastener Type 1/4-20x1.25 Screw
Nominal Diameter 0.25 inches
Threads Per Inch 20 TPI (Unified Coarse)
Shank Length 1.25 inches
Fastener Category 1/4-20 Threaded Fastener
Head Style Hex Head (Bolt) / Flat Head (Screw)
Material Grade Grade 2/5/8 (Carbon Steel)
Thread Engagement Minimum 0.75 inches
Torque Specification 6-8 ft-lbs (Dry)/4-6 ft-lbs (Lubricated)
Thread Standard ASME B1.1 Unified Thread
Alternate Designation 1/4-20 1.25 Bolt
Surface Treatment Zinc Plated/Plain/Black Oxide
question:What is the warranty?
answer:The warranty covers defects in materials or workmanship for 1 year, subject to product-specific terms.
question:Can I arrange official carrier pickup myself?
answer:Yes, contact customer service to coordinate self-pickup via our authorized carriers.
question:Does the company offer upgraded or alternative models?
answer:Yes, upgraded or alternative models are available. Contact support for recommendations.
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:What is the warranty?
answer:The warranty covers defects in materials or workmanship for 1 year, subject to product-specific terms.
question:Can I arrange official carrier pickup myself?
answer:Yes, contact customer service to coordinate self-pickup via our authorized carriers.
question:Does the company offer upgraded or alternative models?
answer:Yes, upgraded or alternative models are available. Contact support for recommendations.
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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