Shoulder Bolts

Manufacturer, Exporter & Supplier of Shoulder Bolts

Shoulder Bolts

Welcome to GIC Fasteners! We're your one-stop shop for top-notch shoulder bolts designed to meet a variety of industry standards. From DIN and ASTM to ISO, BS standards, and their international equivalents, we ensure that our shoulder bolts are crafted to the highest specifications. Our team takes pride in delivering excellence, guaranteeing that each bolt we produce offers outstanding performance and reliability. Whether you're in the industrial, automotive, or construction sector, count on GIC Fasteners to provide the perfect shoulder bolts for your needs. Let us tailor a solution just for you, backed by our commitment to quality and precision engineering.

Are you on the hunt for top-quality shoulder bolts tailored to your specific needs? Look no further than GIC Fasteners. Our shoulder bolts are crafted with precision to ensure they deliver exceptional performance and reliability across a variety of applications. Whether you’re in the industrial, automotive, or construction field, you can trust that our bolts meet stringent quality standards, guaranteeing optimal functionality and durability.

At GIC Fasteners, we understand that one size doesn’t fit all. That’s why we offer customizable options to perfectly match your requirements. Ready to find the perfect shoulder bolts for your project? Don’t hesitate to reach out to our team at today. Let’s discuss your needs and discover the ideal fastening solution for you.

Shoulder Bolts Specifications

Standard : DIN, ASTM, BS, ISO, JIS, IS, GB, IS 4190 and all other International Standards
Length : 3 mm to 200 mm
Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Threads: : BSF, UNF METRIC, UNC, BSW or as required
Finish : Plain, black, zinc plated (Cr,3+), zinc plated(Cr,6+), hot dipped galvanized, dacromet, nickel plated, cadmium plated, etc.
Forming : Hot & Cold Forged
Variants : Fully Threaded Shoulder Bolts, Partial Threaded Shoulder Bolts, Metric Shoulder Bolts, Imperial Shoulder Bolts
Coatings : PTFE (Teflon), Hot Dip Galvanizing, Aluminum Zinc Flake, Zinc Phosphating, Manganese Phosphating, Metallic Zinc, Nickel Bolts Plating, Chrome Plating, Cadmium Plating, Silver Plating, Tin Plating

Shoulder Bolts Dimensions

Table 1. Shoulder Bolt Dimensions. Nominal size (diameter) of shoulder in fractional and decimal inches, head diameter and height, hex socket size and thread length, in inches, and thread size. (Note: Average size is calculated and rounded to nearest 64th.)
Nominal Size
(Shoulder Dia.)
Fraction Decimal Max Max Size Length
1/4 0.250 3/8 3/16 1/8 10-24 3/8
5/16 0.312 7/16 7/32 5/32 1/4-20 7/16
3/8 0.375 9/16 1/4 3/16 5/16-18 1/2
1/2 0.500 3/4 5/16 1/4 3/8-16 5/8
5/8 0.625 7/8 3/8 5/16 1/2-13 3/4
3/4 0.750 1 1/2 3/8 5/8-11 7/8

Socket Shoulder Bolts Dimensions

Socket Shoulder Bolts Diagram
Socket Shoulder Bolts Dimensions                                                                                                                                  ASME B18.3-2003
Nominal Size

Shoulder Diameter (D) Head Diameter (A) Head Height (H) Chamfer or Radius (C) Hex Socket Size (J) Key Engage-ment (T) Fillet Transition Diameter (M) Head Fillet Radius (R) Shoulder Neck Diameter (K) Shoulder Neck Width (F)
Max Min Max Min Max Min Max Nom  Min  Max Min Min Max
1/4 0.2480 0.2460 0.375 0.357 0.188 0.177 0.020 1/8 0.094 0.276 0.009 0.227 0.093
5/16 0.3105 0.3085 0.438 0.419 0.219 0.209 0.026 5/32 0.117 0.345 0.012 0.289 0.093
3/8 0.3730 0.3710 0.562 0.543 0.250 0.240 0.031 3/16 0.141 0.413 0.015 0.352 0.093
1/2 0.4980 0.4960 0.750 0.729 0.312 0.302 0.040 1/4 0.188 0.550 0.020 0.477 0.093
5/8 0.6230 0.6210 0.875 0.853 0.375 0.365 0.050 5/16 0.234 0.687 0.024 0.602 0.093
3/4 0.7480 0.7460 1.000 0.977 0.500 0.490 0.069 3/8 0.281 0.826 0.030 0.727 0.093
Socket Shoulder Bolts Dimensions  - Continued                                                                                                              ASME B18.3-2003
Nominal Size

Nominal Thread Size (D1) Threads per Inch Thread Neck Diameter (G) Thread Neck Width (I)
Thread Neck Fillet (N) Thread Length (E) Thread Section Tensile Strength (lbs.) Single Shear Strength (lbs) Seating Torque (in./lb.)
Shoulder Thread Neck
Max Min Max Min Basic  Min  Max Min
1/4 10 24 0.142 0.133 0.083 0.023 0.017 0.375 2,540 4,515 1,250 50
5/16 1/4 20 0.193 0.182 0.100 0.028 0.022 0.438 4,610 7,100 2,340 125
3/8 5/16 18 0.249 0.237 0.111 0.031 0.025 0.500 7,600 10,280 3,970 265
1/2 3/8 16 0.304 0.291 0.125 0.035 0.029 0.625 11,240 18,350 5,985 470
5/8 1/2 13 0.414 0.397 0.154 0.042 0.036 0.750 20,570 28,785 11,140 1,150
3/4 5/8 11 0.521 0.502 0.182 0.051 0.045 0.875 32,770 41,515 17,800 2,000

Grades of Stainless Steel Shoulder Bolts

  • Stainless Steel 304 Shoulder Bolts
  • Stainless Steel 304L Shoulder Bolts
  • Stainless Steel 304H Shoulder Bolts
  • Stainless Steel 310 Shoulder Bolts
  • Stainless Steel 310S Shoulder Bolts
  • Stainless Steel 310H Shoulder Bolts
  • Stainless Steel 316 Shoulder Bolts
  • Stainless Steel 316L Shoulder Bolts
  • Stainless Steel 316Ti Shoulder Bolts
  • Stainless Steel 317 Shoulder Bolts
  • Stainless Steel 317L Shoulder Bolts
  • Stainless Steel 321 Shoulder Bolts
  • Stainless Steel 321H Shoulder Bolts
  • Stainless Steel 347 Shoulder Bolts
  • Stainless Steel 347H Shoulder Bolts
  • Stainless Steel 904L Shoulder Bolts
  • Stainless Steel 410 Shoulder Bolts
  • Stainless Steel 446 Shoulder Bolts
  • 17-4 PH Stainless Steel Shoulder Bolts
  • SMO 254 Shoulder Bolts
  • Alloy 20 Shoulder Bolts

Grades of Duplex & Super Duplex Steel Shoulder Bolts

  • UNS S32205 Shoulder Bolts
  • UNS S31803 Shoulder Bolts
  • UNS S32750 Shoulder Bolts
  • UNS S32760 Shoulder Bolts

Grades of Titanium Shoulder Bolts

  • Titanium Grade 2 Shoulder Bolts
  • Titanium Grade 5 Shoulder Bolts

Grades of Tantalum Shoulder Bolts

  • UNS R05200 Shoulder Bolts
  • UNS R05252 Shoulder Bolts
  • UNS R05255 Shoulder Bolts
  • UNS R05400 Shoulder Bolts

Grades of Copper Shoulder Bolts

  • UNS C11000 Shoulder Bolts
  • UNS C10100 Shoulder Bolts
  • UNS C10200 Shoulder Bolts
  • UNS C12000 Shoulder Bolts
  • UNS C12200 Shoulder Bolts

Grades of Cupro Nickel Shoulder Bolts

  • CuNi 90/10 Shoulder Bolts
  • CuNi 70/30 Shoulder Bolts

Grades of Brass Carriage Shoulder Bolts

  • UNS C21000 Shoulder Bolts
  • UNS C22000 Shoulder Bolts
  • UNS C22600 Shoulder Bolts
  • UNS C23000 Shoulder Bolts
  • UNS C24000 Shoulder Bolts
  • UNS C26000 Shoulder Bolts
  • UNS C26800 Shoulder Bolts
  • UNS C27000 Shoulder Bolts
  • UNS C27200 Shoulder Bolts
  • UNS C28000 Shoulder Bolts
  • UNS C33000 Shoulder Bolts
  • UNS C33500 Shoulder Bolts
  • UNS C34000 Shoulder Bolts
  • UNS C34200 Shoulder Bolts
  • UNS C35300 Shoulder Bolts
  • UNS C35600 Shoulder Bolts

Grades of Aluminium Shoulder Bolts

  • Aluminium Alloy 1050 Shoulder Bolts
  • Aluminium Alloy 1060 Shoulder Bolts
  • Aluminium Alloy 1060 Shoulder Bolts
  • Aluminium Alloy 1070 Shoulder Bolts
  • Aluminium Alloy 1080 Shoulder Bolts
  • Aluminium Alloy 1100 Shoulder Bolts
  • Aluminium Alloy 1145 Shoulder Bolts
  • Aluminium Alloy 2011 Shoulder Bolts
  • Aluminium Alloy 2014 Shoulder Bolts
  • Aluminium Alloy 2017 Shoulder Bolts
  • Aluminium Alloy 2024 Shoulder Bolts
  • Aluminium Alloy 2090 Shoulder Bolts
  • Aluminium Alloy 3003 Shoulder Bolts
  • Aluminium Alloy 5052 Shoulder Bolts
  • Aluminium Alloy 5083 Shoulder Bolts
  • Aluminium Alloy 6061 Shoulder Bolts
  • Aluminium Alloy 6063 Shoulder Bolts
  • Aluminium Alloy 6066 Shoulder Bolts
  • Aluminium Alloy 6082 Shoulder Bolts
  • Aluminium Alloy 7050 Shoulder Bolts
  • Aluminium Alloy 7075 Shoulder Bolts

Grades of Carbon Steel Shoulder Bolts

  • Carbon Steel AISI 1018 Shoulder Bolts
  • Carbon Steel AISI 1020 Shoulder Bolts
  • Carbon Steel AISI 1040 Shoulder Bolts
  • Carbon Steel AISI 1045 Shoulder Bolts

Grades of Alloy Steel Shoulder Bolts

  • Alloy Steel AISI 4130 Shoulder Bolts
  • Alloy Steel AISI 4140 Shoulder Bolts
  • Alloy Steel AISI 4340 Shoulder Bolts
  • Alloy Steel AISI 8620 Shoulder Bolts
  • ASTM A193 Alloy Steel Gr B7 Shoulder Bolts
  • ASTM A193 Alloy Steel Gr B7M Shoulder Bolts
  • ASTM A320 Alloy Steel Gr L7 Shoulder Bolts
  • ASTM A320 Alloy Steel Gr L7M Shoulder Bolts
  • ASTM A320 Alloy Steel Gr L43 Shoulder Bolts
  • ASTM A194 Alloy Steel Gr 2H Shoulder Bolts
  • ASTM A194 Alloy Steel Gr 2HM Shoulder Bolts
  • ISO 898-1 Alloy Steel Gr 8.8 Shoulder Bolts
  • ISO 898-1 Alloy Steel Gr 10.9 Shoulder Bolts
  • ISO 898-1 Alloy Steel Gr 12.9 Shoulder Bolts

Grades of Silicon Bronze Shoulder Bolts

  • UNS C65100 Shoulder Bolts
  • UNS C65500 Shoulder Bolts
  • UNS C66100 Shoulder Bolts

Grades of Phosphor Bronze Shoulder Bolts

  • UNS C51000 Shoulder Bolts
  • UNS C51900 Shoulder Bolts
  • UNS C52100 Shoulder Bolts
  • UNS C54400 Shoulder Bolts

Grades of Zirconium Shoulder Bolts

  • UNS R60700 Shoulder Bolts
  • UNS R60702 Shoulder Bolts
  • UNS R60704 Shoulder Bolts
  • UNS R60705 Shoulder Bolts
  • UNS R60706 Shoulder Bolts

Grades of Beryllium Copper Shoulder Bolts

  • UNS C17200 Shoulder Bolts
  • UNS C17300 Shoulder Bolts
  • UNS C17500 Shoulder Bolts
  • UNS C17510 Shoulder Bolts

Grades of High Tensile Shoulder Bolts

  • Grade 8.8 Shoulder Bolts
  • Grade 10.9 Shoulder Bolts
  • Grade 12.9 Shoulder Bolts

Grades of Nimonic Shoulder Bolts

  • Nimonic Alloy 75 Shoulder Bolts
  • Nimonic Alloy 80a Shoulder Bolts
  • Nimonic Alloy 90 Shoulder Bolts
  • Nimonic Alloy 105 Shoulder Bolts
  • Nimonic Alloy 115 Shoulder Bolts
  • Nimonic Alloy 236 Shoulder Bolts

Grades of Nitronic Shoulder Bolts

  • Nitronic 50 Shoulder Bolts
  • Nitronic 60 Shoulder Bolts

Characteristics of Shoulder Bolts

  • 1. Threaded Shaft: Shoulder bolts feature a threaded shaft, which allows for secure fastening and provides versatility for various applications.
  • 2. Shoulder Diameter: These bolts have a distinct shoulder section between the head and the threaded shaft, offering a precise and stable bearing surface.
  • 3. Head Styles: Shoulder bolts come in different head styles, including socket head, slotted head, and hex head, catering to specific fastening needs.
  • 4. Material Variety: They can be manufactured from various materials, including steel, stainless steel, and brass, ensuring compatibility with diverse environments and load requirements.
  • 5. Precision Machining: Shoulder bolts are typically precision-machined to ensure accurate dimensions and smooth threading, enhancing their reliability.
  • 6. Shoulder Length: The length of the shoulder section varies, allowing for customized load-bearing capabilities and clear separation of components.
  • 7. Thread Options: These bolts offer different thread types, such as metric or imperial, to accommodate various nut or tapped hole configurations.
  • 8. Corrosion Resistance: Shoulder bolts made from corrosion-resistant materials are suitable for applications exposed to moisture, chemicals, or harsh environmental conditions.
  • 9. Versatile Applications: Due to their unique design, shoulder bolts are versatile and find use in industries ranging from machinery and electronics to automotive and construction.

Applications of Shoulder Bolts

Shoulder bolts, known for their versatility and precision, play a crucial role in a wide range of applications across various industries. Here are some common uses of shoulder bolts:

1. Machinery and Equipment: Shoulder bolts are extensively utilized in machinery and equipment, offering precise and stable connections between moving parts, gears, and levers.

2. Automotive Assembly: In the automotive industry, shoulder bolts are vital for securing components like suspension systems, engine parts, and steering linkages, ensuring reliable vehicle performance.

3. Electronics and Electrical Devices: Shoulder bolts provide secure mounting for circuit boards, switches, and electronic components, maintaining the integrity of electronic systems.

4. Furniture Manufacturing: In the furniture industry, these bolts are used to join parts like hinges, handles, and brackets, contributing to the stability and durability of furniture pieces.

5. Aerospace Engineering: Shoulder bolts are crucial in aerospace applications, where precision and reliability are paramount, ensuring the secure fastening of critical components in aircraft and spacecraft.

6. Medical Equipment: The medical sector relies on shoulder bolts to assemble and secure medical devices, ensuring the precision and safety of healthcare equipment.

7. Construction and Building: Shoulder bolts are used in construction to fasten structural elements and architectural components, maintaining the stability and integrity of buildings and infrastructure.

8. Sports and Recreation: In sporting equipment and recreational products, shoulder bolts are utilized to assemble items such as bicycles, exercise machines, and outdoor gear.

9. Marine and Boating: These bolts, often made from corrosion-resistant materials, are ideal for marine applications, securing boat components and accessories in saltwater environments.

With their adaptability and precision, shoulder bolts are indispensable in countless industries, providing secure and dependable connections for a wide range of products and equipment.


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Shoulder Bolts - FAQs

Shoulder bolts, also known as shoulder screws, feature a distinct shoulder section between the head and the threaded portion. This shoulder serves as a precise and stable bearing surface, distinguishing them from standard bolts.

Shoulder bolts come in various materials, including steel, stainless steel, brass, and aluminum. The choice depends on factors like load requirements, environmental conditions, and corrosion resistance.

Shoulder bolts have different head styles, such as socket head, slotted head, and hex head. The choice of head style depends on the specific requirements of your application and the tools available for installation.

Yes, many manufacturers, including GIC Fasteners, offer custom shoulder lengths to meet your project's precise specifications. Contact us to discuss your unique requirements.

Precision machining ensures accurate dimensions and smooth threading, enhancing the reliability and performance of shoulder bolts in critical applications.

Selecting the right shoulder bolt size and thread type involves considering factors like load capacity, fitment, and compatibility with nuts or tapped holes. Consulting with experts can help make an informed choice.

Shoulder bolts can be reusable if they are in good condition and have not undergone excessive stress during previous use. However, a thorough inspection is essential before reusing them.

Yes, manufacturers offer shoulder bolts made from corrosion-resistant materials like stainless steel, making them suitable for applications exposed to moisture and saltwater.

Shoulder bolts are available in materials that can withstand high temperatures, but it's crucial to select the appropriate material and finish for the specific temperature range of your application.

Shoulder Bolts - Export Destination

Shoulder Bolts Suppliers in North America
Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States.
Shoulder Bolts Suppliers in South America
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Falkland Islands, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.
Shoulder Bolts Suppliers in Europe
Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic (Czechia), Denmark, Estonia, Finland, France, Germany, Greece, Holy See, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Russia, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom.
Shoulder Bolts Suppliers in Asia
Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, Brunei, Cambodia, Cyprus, Georgia, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Maldives, Mongolia, Myanmar, Nepal, Oman, Pakistan, Palestine, Philippines, Qatar, Saudi Arabia, Singapore, South Korea, Sri Lanka, State of Palestine, Syria, Taiwan, Tajikistan, Thailand, Timor-Leste, Turkey, Turkmenistan, United Arab Emirates, Uzbekistan, Vietnam, Yemen.
Shoulder Bolts Suppliers in Australia
Australia, Fiji, Kiribati, Marshall Islands, Micronesia, Nauru, New Zealand, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu.