Shoulder Eye Bolts
Shoulder Eye Bolts
Shoulder Eye Bolts
Shoulder Eye Bolts
Shoulder Eye Bolts
Shoulder Eye Bolts
Shoulder Eye Bolts
Shoulder Eye Bolts

Shoulder Eye Bolts

Shoulder eye bolts are used to attach suspension and dead-end insulators, clevises, links and other hardware to poles and cross-arms. The integral collar provides a broad bearing surface to resist elongation of the bolt hole in wood poles and cross-arms.

Product Description

Product Overview:

Shoulder eye bolts, also known as “shoulder pattern” eye bolts, are designed to attach suspension and dead-end insulators, clevises, links, and other hardware to poles and cross-arms. These bolts feature an integral collar that provides a broad bearing surface, which resists elongation of the bolt hole in wood poles and cross-arms, ensuring stability and reliability in various applications.

Structural Features:

  1. Forged, One-Piece Design:
    • Constructed with a 3/4″ diameter, these shoulder eye bolts are forged from a single piece of high-strength steel, ensuring durability and resistance to mechanical stress.
  2. Integral Collar:
    • The integral collar provides a broad bearing surface that helps resist elongation of the bolt hole, enhancing the stability of the attachment in wood poles and cross-arms.
  3. Supplied Assembled with Square Nut:
    • Each shoulder eye bolt is supplied assembled with a square nut, ensuring ease of installation and secure fastening.
  4. Ultimate Tensile Strength:
    • Designed to withstand an ultimate tensile strength of 20,050 lbs, making them suitable for heavy-duty applications.

Installation Method:

  1. Preparation:
    • Ensure that all necessary tools and materials are available before starting the installation process. Verify the specifications of the shoulder eye bolts to ensure compatibility with the hardware and structure.
  2. Positioning:
    • Position the shoulder eye bolt at the desired location on the pole or cross-arm, aligning it with the pre-drilled hole.
  3. Inserting Bolts:
    • Insert the shoulder eye bolt through the aligned holes of the hardware and the structure.
  4. Securing Bolts:
    • Tighten the square nut on the threaded end of the bolt using appropriate tools to ensure a firm and secure connection.
  5. Inspection:
    • Inspect the installation to ensure the bolt is properly tightened and the hardware is securely attached.

Applicable Environmental Conditions:

  1. Temperature Range:
    • Suitable for operation in temperatures ranging from -40°C to +60°C, ensuring performance in extreme weather conditions.
  2. Humidity:
    • Can operate effectively in environments with relative humidity up to 95%, providing reliability in moist conditions.
  3. Weather Resistance:
    • Designed to withstand harsh weather conditions, including high winds, heavy rain, and UV exposure.
  4. Corrosive Environments:
    • The galvanized coating or other anti-corrosion treatments make shoulder eye bolts suitable for environments with exposure to corrosive elements such as salt, chemicals, or industrial pollutants.

Specifications

Material: Steel Hot Dip Galvanized

3/4″ Diameter – Ultimate Tensile Strength 20,050 lbs
Catalog number Bolt
Length (in)
Thread Length (in) Weight/100 (lbs)
LR9528 8 4 204
LR9530 10 6 220
LR9532 12 6 232
LR9534 14 6 244
LR9536 16 6 260
LR9538 18 6 280
LR9540 20 6 300

Product Advantages

  • 1. Increased Load Capacity: The shoulder on a shoulder eye bolt provides a larger surface area for distributing loads, making them ideal for heavy or uneven loads.
  • 2. Stress Distribution: The shoulder helps spread the load across the base of the shank, preventing bending or breaking under high stress.
  • 3. Prevention of Bolt Spinning: The shoulder can prevent the bolt from spinning during installation or removal, which is crucial for maintaining a secure connection.
  • 4. Vibration Resistance: The design of shoulder eye bolts can offer resistance to vibration, contributing to a more stable and secure connection.
  • 5. Safety and Security: The inability to remove the bolt from its mounting point without cutting or breaking it off adds an extra layer of safety in critical applications.

Application Places

  1. Electrical Panel Assemblies: Shoulder eye bolts can be used to mount electrical panels, ensuring a secure and stable fastening that can handle the weight and reduce stress on the panel’s structure.
  2. Cable Support Systems: In installations where cables need to be suspended or supported along structures, shoulder eye bolts can provide a strong and reliable point of attachment.
  3. Lifting and Rigging of Electrical Equipment: For lifting heavy electrical components such as transformers, generators, or large capacitor banks during installation or maintenance, shoulder eye bolts offer a safe and secure means of attachment.
  4. Mounting Electrical Supports: In outdoor electrical installations, such as for lighting or signage, shoulder eye bolts can be used to mount support structures or brackets.

Packing

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Faq

  • 1. The main parts of the shoulder eye bolts?

    Eye bolts come in different design configurations based on the application and their intended use. Here are some terms you should familiarize yourself with to help you understand the different types and design of lifting eye bolts:

    Eye – loop formed at the top that can be either bent, welded, or forged

    Shoulder – “skirt” where the eye and shank come together designed to resist bending

    Shank – threaded shaft that attaches to the eye

    Always ensure that the eye bolt that you select meets or exceeds the working load limit for the task at hand and is comparable to the WLL of the slings and other rigging hardware being used.

  • 2. What makes shoulder eye bolts different from standard eye bolts?

    Shoulder eye bolts have an additional shoulder section that helps distribute loads more evenly and provides extra strength. This makes them more suitable for heavy-duty applications compared to standard eye bolts, which lack this shoulder and are not designed to handle as much weight.

  • 3. How do I select the right size and material for a shoulder eye bolt?

    The selection depends on the load requirements, the environment, and the specific application. You should choose a bolt with a sufficient diameter and thread length to handle the load. Material choices like carbon steel, stainless steel, or alloy steel may be considered based on factors like corrosion resistance and temperature resistance.

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