When it comes to bolts, there are many different types to choose from. One type, in particular, is the square head bolt. This type of bolt has a unique design that makes it stand out. In this blog post, we’ll dive into what square head bolts are, their dimensions, properties, and uses.
What is Square Head Bolts?
A square head bolt is a threaded fastener that features a square-shaped head. When tightening or loosening the bolt, the square head provides more grip and leverage. Square head bolts are often used in heavy-duty applications requiring high torque. They are commonly used in construction, manufacturing, and engineering.
Dimensions of Square Head Bolts
| Square Bolts | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal or Basic Product Diameter
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Diameter of Full Size Body (B) | Width Across Flats (W) | Width Across Corners (C) | Head Height (H) | Radius of Fillet (R) | Thread Length for Bolt Lengths | |||||||
| Max | Min | Max | Min Sharp | Max | Min | Max | Min | Max | Min (Basic) | 6 in. & Shorter (Basic) | over 6 in. (Basic) | ||
| 1/4 | .2500 | .260 | .237 | .375 | .362 | .530 | .498 | .188 | .156 | 0.03 | 0.01 | .750 | 1.000 |
| 5/16 | .3125 | .324 | .298 | .500 | .484 | .707 | .665 | .220 | .186 | 0.03 | 0.01 | .875 | 1.125 |
| 3/8 | .3750 | .388 | .360 | .562 | .544 | .795 | .747 | .268 | .232 | 0.03 | 0.01 | 1.000 | 1.250 |
| 7/16 | .4375 | .452 | .421 | .625 | .603 | .884 | .828 | .316 | .278 | 0.03 | 0.01 | 1.125 | 1.375 |
| 1/2 | .5000 | .515 | .482 | .750 | .725 | 1.061 | .995 | .348 | .308 | 0.03 | 0.01 | 1.250 | 1.500 |
| 5/8 | .6250 | .642 | .605 | .938 | .906 | 1.326 | 1.244 | .444 | .400 | 0.06 | 0.02 | 1.500 | 1.750 |
| 3/4 | .7500 | .768 | .729 | 1.125 | 1.088 | 1.591 | 1.494 | .524 | .476 | 0.06 | 0.02 | 1.750 | 2.000 |
| 7/8 | .8750 | .895 | .852 | 1.312 | 1.269 | 1.856 | 1.742 | .620 | .568 | 0.06 | 0.02 | 2.000 | 2.250 |
| 1 | 1.0000 | 1.022 | .976 | 1.500 | 1.450 | 2.121 | 1.991 | .684 | .628 | 0.09 | 0.03 | 2.250 | 2.500 |
| 1-1/8 | 1.1250 | 1.149 | 1.098 | 1.688 | 1.631 | 2.386 | 2.239 | .780 | .720 | 0.09 | 0.03 | 2.500 | 2.750 |
| 1-1/4 | 1.2500 | 1.277 | 1.223 | 1.875 | 1.812 | 2.652 | 2.489 | .876 | .812 | 0.09 | 0.03 | 2.750 | 3.000 |
| 1-3/8 | 1.3750 | 1.404 | 1.345 | 2.062 | 1.994 | 2.917 | 2.738 | .940 | .872 | 0.09 | 0.03 | 3.000 | 3.250 |
| 1-1/2 | 1.5000 | 1.531 | 1.470 | 2.250 | 2.175 | 3.182 | 2.986 | 1.036 | .964 | 0.09 | 0.03 | 3.250 | 3.500 |
Properties of Square Head Bolts
Square head bolts are commonly made from steel, stainless steel, and brass materials. They are known for their strength and durability, ideal for heavy-duty applications. The square head design also provides excellent resistance to loosening due to vibration. Additionally, square head bolts are resistant to corrosion, making them suitable for outdoor applications where they may be exposed to the elements.
Uses of Square Head Bolts
Square head bolts are commonly used in applications where high torque is required. They are often used to secure machinery, equipment, and structures in place. They are also commonly used in construction applications such as bridges, buildings, and highways. In addition, square head bolts are often used in automotive applications where durability and strength are essential.
Advantages of Square Head Bolts
One of the main advantages of square head bolts is their strength and durability. They are known to resist bending, shearing, and breaking due to their design and material. The square head design also provides more grip and leverage, making them easier to tighten and loosen than other bolt types. Additionally, the square head design offers more surface area for wrenches and sockets to grip, reducing the risk of slipping or rounding off the head.
Conclusion:
Square head bolts are a unique type of bolt that offers many advantages. They are strong, durable, and resistant to corrosion and vibration. Their square head design provides more grip and leverage, making them ideal for heavy-duty applications. Whether you’re working in construction, manufacturing, or engineering, square head bolts are an excellent choice for your next project. Now that you have a better understanding of what square head bolts are, their dimensions and properties, and their uses, you can confidently choose the right bolt for your application.
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
