

![]()
Squarehead bolts are a convenient option for most fastening applications. This type of bolt has a non-magnetic head that makes checking for proper tightening a breeze. The square head is also electrically conductive, making it perfect for industrial applications. Read on for information about using square head bolts. And get ready for the next time you're in the market for fasteners. You'll be glad you did!
![]()
Square Head Bolts are Easy to Check
Square head Hex Bolts are easy-to-check with their flat sides, which makes them easy to visually gauge their tightness. They also align with the fastened materials. This makes them popular in the railroad industry, as well as in furniture manufacturing and electrical panels. However, there are other types of square head bolts that are used in similar applications. Let's take a closer look at some of them.
These screws have square-shaped heads, but the actual square shape is circular, and the head is not square. Square-head screws, which are sometimes referred to as square drive screws, feature a square-shaped recess in the head, which accommodates a bit. When tightening the screw, the bit fits into this recess. Phillips-head screws, on the other hand, feature a plus-shaped recess in their heads and will require a Phillips-head bit.
![]()
They are Non-Magnetic
Hex Bolts are non-macro-sized bolts. They are non-magnetic, which makes them ideal for a wide range of applications. A non-magnetic hex bolt is not magnetic and is therefore ideal for applications requiring extreme temperatures. However, they do have some drawbacks, such as a lack of yield strength and corrosion resistance. Fortunately, there are now non-magnetic alternatives, such as polymer bolts.
Hex Bolts are available in a variety of materials, including Stainless Steel. Stainless Steel 316L Hex Bolts are non-magnetic when annealed and become slightly magnetic after cold working. Stainless Steel 316 Hex Bolts are strong and resistant to corrosion and are often used in applications involving elevated temperatures. Some applications of 316L Hex Bolts are in high-temperature environments, such as in oil towers and explosion-proof containers.
![]()
They are Electrically Conductive
Stainless steel 316 hex bolts are nonmagnetic and are therefore good for heavy-duty marine applications. Stainless steel 304 and 18-8 have a partial magnetic field, whereas brass has no such attraction. The 316 stainless steel hex bolts also feature the manufacturer's marking, namely F-5-9-3-H. They also feature a logo punched into the head.
Copper fasteners are electrically conductive. Care must be taken to avoid electrocution when using these materials. Because of their high electrical conductivity, they are often used in applications that require corrosion resistance and soft material surfaces. Similarly, copper studs and acorn bolts are often used in unique applications where electrical conductivity is needed. Copper fasteners are also very durable and are highly conductive, which means they won't melt or be damaged when they get wet.
Hex bolts can be made of high-carbon steel or low-carbon alloy. Grade A307 hex bolts have finished heads. They are typically used in applications that require high temperatures or high pressure. Moreover, ASTM A325 hex bolts are formulated to withstand weathering and rusting. Type 1 and 3 A325 hex bolts are suitable for flanged joints in piping systems.
![]()
They can be used in Industrial Applications
Hex Bolts are a versatile type of fastener. They have a standardized head diameter and thread length but can also be ordered in nonstandard sizes for a wide range of purposes. Hex bolts are a very useful type of fastener, with countless applications in industrial equipment, machinery, and construction. Whether you need to fasten heavy-duty machinery to small pieces of household equipment, hex bolts will fit the bill.
Hex bolts come in many different grades, ranging from low carbon steel to high carbon steel. Grade A hex bolts, for example, feature finished heads and are commonly used in general-purpose industrial applications. Type B hex bolts, on the other hand, feature-heavy hex heads and are commonly used in structural applications and flanged joints in piping systems. There are also hex bolts available for hex-bolted connections with stainless steel or titanium.





