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Hexagon Socket Set Screws With Cup Point
Category：
Fasteners
Hexagon Socket Set Screws With Cup Point
Hexagon Socket Set Screws With Cup Point Description
The material used in the manufacturing of the bolts will determine its strength, applications, corrosion resistance etc. There are several materials of Bolts and some of the popular ones are:
● Zinc-Plated Steel: It is one of the popular and commonly used bolt materials for general purpose applications, usually indoor. Depending on the type of manufacturing, the color of the bolt may be bluish or yellowish tint. It is a low carbon steel with a Zinc coating that provides moderate corrosion resistance. They are very cheap to manufacture as well.
● Stainless Steel: One of the toughest bolt materials with very good corrosion resistance. As a result, stainless steel bolts are often used in industries, automobiles, ships (and other marine equipment) and outdoor objects in general. They are slightly expensive than the Zinc plated counterparts.
● Chrome / Nickel Plated Steel: Although stainless steel already consists of chromium, additional Chrome and Nickel plating of steel further increases the corrosion resistance. The other benefit of this plating is the surface of the bolt looks very shiny, smooth and polished.
● Hot-dipped Galvanized Steel: In this type, the steel is coated with even thicker layer of Zinc for increased corrosion resistance and thus making them suitable for outdoor use. Even the nuts and washers must be of the galvanized type for proper coupling.
● Brass / Bronze: These types of bolts have a natural resistance to corrosion as they are alloys of copper. They are generally expensive than other bolt materials and as a result they are often used in arts and decorative pieces.
● Alloy Steel: The Alloy Steel contains additional elements other than iron and carbon such as manganese, nickel, chromium etc. The result is a bolt with very good strength, corrosion resistance and wear resistance. It is often black in color due to additional black oxide coating.
Types of Set Screws
As Bolts and Nuts are one of the commonly used fasteners, there are different types of bolts for different types of applications. Some of the more common and popular types of bolts are:
| Cup point | Cone point | Half dog point | Knurled cup point |
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Product Parameters
| Imperial Bolt Size Chart | |||||||||||||
| Nominal Size | Bolt Diameter ‘D’ | Across Flats ‘A’ | Across Corners ‘B’ | Head Height ‘C’ | Thread Length ‘L’ | Transition Length ‘Y’ | |||||||
| Max (in) | Min (in) | Nominal (in) | Max (in) | Min (in) | Max (in) | Min (in) | Nominal (in) | Max (in) | Min (in) | ≤6 in | >6 in | Max (in) | |
| 1/4 | 0.25 | 0.245 | 7/16 | 0.438 | 0.428 | 0.505 | 0.488 | 5/32 | 0.163 | 0.15 | 0.75 | 1 | 0.25 |
| 5/16 | 0.3125 | 0.3065 | 1/2 | 0.5 | 0.489 | 0.577 | 0.557 | 13/64 | 0.211 | 0.195 | 0.875 | 1.125 | 0.278 |
| 3/8 | 0.375 | 0.369 | 9/16 | 0.562 | 0.551 | 0.65 | 0.628 | 15/64 | 0.243 | 0.226 | 1 | 1.25 | 0.312 |
| 7/16 | 0.4375 | 0.4305 | 5/8 | 0.625 | 0.612 | 0.722 | 0.698 | 9/32 | 0.291 | 0.272 | 1.125 | 1.375 | 0.357 |
| 1/2 | 0.5 | 0.493 | 3/4 | 0.75 | 0.736 | 0.866 | 0.84 | 5/16 | 0.323 | 0.302 | 1.25 | 1.5 | 0.385 |
| 9/16 | 0.5625 | 0.5545 | 13/16 | 0.812 | 0.798 | 0.938 | 0.91 | 23/64 | 0.371 | 0.348 | 1.375 | 1.625 | 0.417 |
| 5/8 | 0.625 | 0.617 | 15/16 | 0.938 | 0.922 | 1.083 | 1.051 | 25/64 | 0.403 | 0.378 | 1.5 | 1.75 | 0.455 |
| 3/4 | 0.75 | 0.741 | 1-1/8 | 1.125 | 1.1 | 1.299 | 1.254 | 15/32 | 0.483 | 0.455 | 1.75 | 2 | 0.5 |
| 7/8 | 0.875 | 0.866 | 1-5/16 | 1.312 | 1.285 | 1.516 | 1.465 | 35/64 | 0.563 | 0.531 | 2 | 2.25 | 0.556 |
| 1 | 1 | 0.99 | 1-1/2 | 1.5 | 1.469 | 1.732 | 1.675 | 39/64 | 0.627 | 0.591 | 2.25 | 2.5 | 0.625 |
| 1-1/8 | 1.125 | 1.114 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 11/16 | 0.718 | 0.658 | 2.5 | 2.75 | 0.714 |
| 1-1/4 | 1.25 | 1.239 | 1-7/8 | 1.875 | 1.812 | 2.165 | 2.066 | 25/32 | 0.813 | 0.749 | 2.75 | 3 | 0.714 |
| 1-3/8 | 1.375 | 1.363 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 27/32 | 0.878 | 0.81 | 3 | 3.25 | 0.833 |
| 1-1/2 | 1.5 | 1.488 | 2-1/4 | 2.25 | 2.175 | 2.598 | 2.48 | 1-5/16 | 0.974 | 0.902 | 3.25 | 3.5 | 0.833 |
| 1-3/4 | 1.75 | 1.738 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.89 | 1-3/32 | 1.134 | 1.054 | 3.75 | 4 | 1 |
| 2 | 2 | 1.988 | 3 | 3 | 2.9 | 3.464 | 3.306 | 1-7/32 | 1.263 | 1.175 | 4.25 | 4.5 | 1.111 |
| 2-1/4 | 2.25 | 2.238 | 3-3/8 | 3.375 | 3.262 | 3.897 | 3.719 | 1-3/8 | 1.423 | 1.327 | 4.75 | 5 | 1.111 |
| 2-1/2 | 2.5 | 2.488 | 3-3/4 | 3.75 | 3.625 | 4.33 | 4.133 | 1-17/32 | 1.583 | 1.479 | 5.25 | 5.5 | 1.25 |
| 2-3/4 | 2.75 | 2.738 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.546 | 1-11/16 | 1.744 | 1.632 | 5.75 | 6 | 1.25 |
| 3 | 3 | 2.988 | 4-1/2 | 4.5 | 4.35 | 5.196 | 4.959 | 1-7/8 | 1.935 | 1.815 | 6.25 | 6.5 | 1.25 |
| Thread Pitch | ||
| Bolt Size | Thread Pitch | |
| (in) | Coarse | Fine |
| 1/4 | 20 | 28 |
| 5/16 | 18 | 24 |
| 3/8 | 16 | 24 |
| 7/16 | 14 | 20 |
| 1/2 | 13 | 20 |
| 9/16 | 12 | 18 |
| 5/8 | 11 | 18 |
| 3/4 | 10 | 16 |
| 7/8 | 9 | 14 |
| 1 | 8 | 14 |
| 1-1/8 | 7 | 12 |
| 1-1/4 | 7 | 12 |
| 1-3/8 | 6 | 12 |
| 1-1/2 | 6 | 12 |
| 1-3/4 | 5 | – |
| 2 | 4-1/2 | – |
| 2-1/2 | 4 | – |
| 3 | 4 | – |
Metric Bolt Size Chart
In metric system, the bolts (and nuts) are usually referred using the letter ‘M’ followed by additional dimensions. For example, a common metric specification of a bolt is “M6-1.0 x 20”. Here,
● ‘M’ indicates the bolt uses metric threads
● ‘6’ indicates the nominal diameter of the bolt (at the shank or the threads)
● ‘1.0’ indicates the thread pitch of the bolt in millimeter
● ‘20’ indicates length of the bolt in millimeter
| Size | Pitch | Across Flats ‘A’ | Across Corners ‘B’ | Head Height ‘C’ | Bolt Diameter ‘D’ | ||
| (mm) | Max (mm) | Min (mm) | Min (mm) | Max (mm) | Max (mm) | Min (mm) | |
| M5 | 0.8 | 8 | 7.78 | 9.2 | 3.5 | 5 | 4.82 |
| M6 | 1 | 10 | 9.78 | 11.5 | 4 | 6 | 5.82 |
| M8 | 1.25 | 13 | 12.73 | 15 | 5.3 | 8 | 7.78 |
| M10 | 1.5 | 16 | 15.73 | 18.4 | 6.4 | 10 | 9.78 |
| M12 | 1.75 | 18 | 17.73 | 20.7 | 7.5 | 12 | 11.73 |
| M14 | 2 | 21 | 20.67 | 24.2 | 8.8 | 14 | 13.73 |
| M16 | 2 | 24 | 23.67 | 27.7 | 10 | 16 | 15.73 |
| M18 | 2.5 | 27 | 26.67 | 31.2 | 11.5 | 18 | 17.73 |
| M20 | 2.5 | 30 | 29.67 | 34.6 | 12.5 | 20 | 19.67 |
| M22 | 2.5 | 34 | 33.38 | 39.3 | 14 | 22 | 21.67 |
| M24 | 3 | 36 | 35.38 | 41.6 | 15 | 24 | 23.67 |
| M27 | 3 | 41 | 40.38 | 47.3 | 16.7 | 27 | 26.67 |
| M30 | 3.5 | 46 | 45 | 53.1 | 18.7 | 30 | 29.67 |
| M33 | 3.5 | 50 | 49 | 57.7 | 20.5 | 33 | 32.61 |
| M36 | 4 | 55 | 53.8 | 63.5 | 22.5 | 36 | 35.61 |
| Thread Pitch | |||
| Size | Coarse (mm) | Fine (mm) | Super Fine (mm) |
| M2 | 0.4 | – | – |
| M2.5 | 0.45 | – | – |
| M3 | 0.5 | – | – |
| M3.5 | 0.6 | – | – |
| M4 | 0.7 | – | – |
| M5 | 0.8 | – | – |
| M6 | 1 | 0.75 | – |
| M7 | 1 | – | – |
| M8 | 1.25 | 1 | – |
| M10 | 1.5 | 1.25 | 1 |
| M12 | 1.75 | 1.5 | 1.25 |
| M14 | 2 | 1.5 | – |
| M16 | 2 | 1.5 | – |
| M18 | 2.5 | 1.5 | – |
| M20 | 2.5 | 1.5 | – |
| M22 | 2.5 | 1.5 | – |
| M24 | 3 | 2 | – |
| M27 | 3 | 2 | – |
| M30 | 3.5 | 2 | – |
| M33 | 3.5 | 2 | – |
| M36 | 4 | 3 | – |
| M42 | 4.5 | 3 | – |
| M48 | 5 | 3 | – |
| M56 | 5.5 | 3 | – |
PACKING AND SHIPPING
We have our own transportation fleet with the most convenient transportation and timely delivery.The company's products are exported to more than 70 countries and regions in the world, including Europe, America, Germany, South Korea, Indonesia, Bangladesh, etc.
FACTORY
We are a steel manufacturer with a long history and reputation for excellence. Since our establishment in 2018, we have always been committed to providing customers with the highest quality and most efficient steel products and steel deep processing services to meet their needs in various engineering projects.
CUSTOMER VISITS
In the future development, we will continue to uphold the concepts of professionalism, integrity, innovation and unity, continuously improve product quality and service levels, and provide customers with more high-quality and efficient steel products and services. We look forward to working with you to create a better future!
APPLICATION
Our product range covers various specifications of steel plates, steel sections, steel pipes, etc., which are widely used in construction, bridges, machinery, ships, oil, natural gas, and other fields. We always adhere to strict quality management to ensure that every product meets national standards and customer requirements.
HONOR
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Shandong Silk Road Steel Company
E-mail: Eda@sdsilkroadsteel.com
WhatsApp: +86-18865289140
Tel: +86-18865289140
Address：Liaocheng City, Shandong Province
