Ecom Fasteners
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1-1/8-7 x 4-1/2 Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5 thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.
1-1/8-7 x 4-1/2 Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5 thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.
1-1/8-7 x 4-1/2 Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5 thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.
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1-1/8-7 x 4-1/2 Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5 thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.
1-1/8-7 x 4-1/2 Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5 thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.
1-1/8-7 x 4-1/2 Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5 thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.
Manufactured to ASME B18.2.1 & SAE J429 specifications, offering unbeatable strength with a tensile strength of 150,000 psi.
1-1/8"-7 x 4-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5" thread length. Hex head with washer face. ASME B18.2.1. Hex bolts.
Item #: 241401903

1-1/8"-7 x 4-1/2" Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5" thread length. Hex head with washer face. ASME

Item #: 241401903

RWF 68308

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Manufactured to ASME B18.2.1 & SAE J429 specifications, offering unbeatable strength with a tensile strength of 150,000 psi.
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Product Details

Shop 1-1/8-7 x 4-1/2 Hex Cap Screws, Grade 8 Alloy Steel, Plain Finish | Partially Threaded. 2.5 thread length. Hex head with washer face. ASME B18.2.1. Hex bolts. online at a best price in Rwanda. B0D1YK9T18
  • A grade 8 bolt is stronger than the more commonly used grade 5.
  • Grade 8 Steel
  • Coarse Thread / Partially Threaded 2.5 inches of Thread
  • Manufactured to ASME B18.2.1 & SAE J429 specifications
  • Tensile Strength: 150,000 psi. min, 1/4 – 1.5 inch diams)
Thread Size1 1/8"-7 (2.5 cm)
Exterior FinishUnfinished
Screw Head StyleHex
Fastener TypeHexagon Bolt
Thread StyleRight Hand
Head TypeHex
Drive SystemExternal Hex
Grade RatingGrade 8
Material TypeAlloy Steel
Size Name1 1/8-7 x 4 1/2 inch (2.5 cm)
Fastener Size1 1/8-7 x 4 1/2 inch (2.5 cm)
Thread CoveragePartially Threaded
BrandEcom Fasteners
Unit Count1 Count
ManufacturerEcom Fasteners
Number Of Items1
Part NumberE451005-1
MaterialAlloy Steel
Head StyleHex
Item Weight0.5 lbs (230 grams)

Product Description

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Customer Questions & Answers

  • Question: What is the material of the 1-1/8 inch x 4-1/2 inch Hex Cap Screw?

    Answer: The 1-1/8 inch x 4-1/2 inch Hex Cap Screw is made from plain steel, specifically classified as Grade 8. This grade of steel is known for its high tensile strength, making it ideal for high-stress applications. Plain steel does not have a coating, which means it is suited for environments where minimal corrosive exposure occurs. You might use these screws in heavy machinery assembly, construction, or any industrial projects requiring significant durability.
  • Question: What does Grade 8 mean for hex cap screws?

    Answer: Grade 8 hex cap screws indicate a high level of strength and durability, as these fasteners are subjected to stringent testing standards. Specifically, Grade 8 screws have a minimum tensile strength of 150,000 psi. This makes them particularly suited for applications where the screws will face high levels of stress and require reliable performance. They are commonly utilized in automotive, aerospace, and heavy construction settings.
  • Question: What is the thread type of this hex bolt?

    Answer: The hex bolt features a coarse thread, specifically designated as 1 1/8-7, which means there are 7 threads per inch. Coarse threads provide better grip and are less likely to strip under stress compared to fine threads. This makes them suitable for various applications where wood or softer materials are involved, as well as in situations requiring quick assembly and disassembly.
  • Question: Is this hex cap screw partially threaded?

    Answer: Yes, the 1-1/8 inch x 4-1/2 inch Hex Cap Screw is partially threaded. The partial threading allows for a more secure grip into materials while providing flexibility for certain applications. This design is beneficial in assembling parts that may require movement or adjustment, such as in machinery or equipment that undergo stress while operating.
  • Question: Can I use this hex screw for outdoor projects?

    Answer: While the 1-1/8 inch x 4-1/2 inch Hex Cap Screw is made from plain steel, which does not have protective coatings against rust and corrosion, it can still be used in outdoor projects. However, it is recommended to apply a protective finish or paint to enhance its durability against environmental conditions. Use it in outdoor structures, but ensure that you're prepared for potential weather-related wear over time.
  • Question: What applications are suitable for this type of screw?

    Answer: This hex cap screw is suitable for a wide range of applications, including automotive assembly, machinery construction, and infrastructure projects. Its strong structural integrity makes it ideal for heavy loads within equipment and for securing components that face constant vibration. You may find it useful in assembling trailers, machinery frames, or even in large furniture constructions.
  • Question: How do I choose the right size hex screw for my project?

    Answer: Selecting the correct size hex screw depends on the materials being joined and the load they will support. For the 1-1/8 inch x 4-1/2 inch option, consider whether your application requires a longer screw for deeper connections or a different diameter for better fitment. Always assess the thickness of the materials, and consult engineering guidelines if necessary to ensure proper strength and fit.
  • Question: Can I use this hex screw with a standard wrench?

    Answer: Yes, the hex cap screw can be used with a standard wrench or socket that matches the size of the screw's head. This allows for easy tightening and loosening, facilitating quick assembly in various projects. The hex design is intended to provide a better grip for wrenches, reducing the chance of slipping during application.
  • Question: Where can I buy the 1-1/8 inch x 4-1/2 inch Hex Cap Screw?

    Answer: You can purchase the 1-1/8 inch x 4-1/2 inch Hex Cap Screw at Ubuy. Ubuy's platform offers a wide variety of hardware products, ensuring you get quality items with ease. Simply visit their website and search for the product to find it available for order with convenient purchase options.
  • Question: What is a hex cap screw used for compared to a regular bolt?

    Answer: Hex cap screws are designed for applications where a strong, reliable fastening is necessary, often used interchangeably with regular bolts. However, hex cap screws typically feature a fully threaded shaft and a hex head for wrench operation, providing more grip and torque. This makes them a preferred choice for heavy-duty applications like machinery, whereas regular bolts may be better suited for lighter tasks or in situations where aesthetics are more important than strength.

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RWF 68308

Order now and get it around Sunday, August 23

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Features & Benefits

  • High-quality Grade 8 Hex Cap Screw.
  • Dimensions: 1-1/8 inch x 2-1/2 inch.
  • Fully threaded with coarse threads for enhanced grip.
  • Constructed from durable alloy steel.
  • Meets rigorous ASME and SAE specifications.
  • Designed to provide exceptional tensile strength of 150,000 psi.

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