Flanged Nut

Flanged Nut

Flanged Nut

A flanged nut is a type of nut that has a wide flange at one end, which acts as an integrated, non-spinning washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface.

Acorn Nut

Acorn Nut

Acorn Nut

An acorn nut, also known as a cap nut or dome nut, is a type of fastener that has a domed top to cover and protect the threaded end of a bolt or screw. Acorn nuts are appreciated for their combination of functional thread protection and aesthetic appeal, making them a popular choice for a wide range of applications from industrial to decorative.

Coupling Nut

Coupling Nut

Coupling Nut

A coupling nut, also known as an extension nut, is a type of fastener that is used to join two pieces of threaded rod or other male threaded fasteners. Coupling nuts are typically hexagonal in shape, similar to standard nuts, but are longer in length. This extended length allows them to cover and connect two opposite ends of threaded rod or bolts. They are an essential fastener in many industrial, construction, and home applications where the joining of threaded rods or bolts is required.

Heavy Hex Nut

Heavy Hex Nut

Heavy Hex Nut

A heavy hex nut is a variation of the standard hex nut but with a larger and thicker size, providing a greater bearing surface and better load distribution. It is designed for use in high-strength and heavy-duty applications.

They are available in multiple grades and finishes.

ASTM A193 Grade B16 Stud Bolts

ASTM A193 Grade B16 stud bolts are high strength fasteners manufactured from heat treated Chromium-Molybdenum-Vanadium steel, quenched and tempered. Added Vanadium allows for operating temperatures higher than that of B7 stud bolts.
Dimensional specifications are governed by ASME B18.31.2. Grade markings consists of both the grade symbol “B16″ and the manufacturer’s identification mark on one end of each stud 3/8″ diameter and larger. Manufacturer’s marking may be placed on other end if insufficient space. Inch series fasteners meeting ASTM A193 Grade B16 specifications are typically used in the power and petrochemical industries on boilers, turbines, and other pressurized equipment with elevated temperatures. ASTM A193 covers the requirements for high temperature and high pressure bolting. A193 B16 all thread studs having diameters above 1” are most common in 8UN thread pitches.

Alloy Steel, AISI 4140/4142 Quenched and Tempered A Heat Treated Chromium Molybdenum Steel Widely Used for Medium High-Temperature Service

ASTM Grade B7 fasteners are steel screws and threaded rods for high-pressure and high-temperature applications. They’re often used to secure pressure tanks, valves, and flanges.
The minimum tensile strength of Grade B7 screws is 100,000 psi. Tensile strength is the most common way to compare across different fastener grades. To maintain strength, mate Grade B7 screws and threaded rods with Grade 7 or Grade 2H extra-wide hex nuts.

Cage Nut

Cage Nut

Cage Nut

A cage nut or captive nut is a specialized type of nut used in applications where standard nuts are difficult to install. This nut is a combination of a square nut within a spring steel cage which wraps around the nut. The cage has two wings that, when compressed, allow the nut to be inserted into square holes in equipment racks, for example. A cage nut consists of a square or rectangular nut encased in a spring steel cage. The cage often has wings for ease of installation.

Castle Nut

Castle Nut

Castle Nut

A castle nut is a specialized type of nut featuring notches (or castellations) cut into one end. These notches give the nut its distinctive “castle-like” appearance. Castle nuts are designed to be used in conjunction with a cotter pin for secure locking. The defining feature of a castle nut is the slots or notches cut into one end. These notches are aligned with a hole in the mating bolt or shaft. For a castle nut to function properly, the bolt or shaft it is used with must have a drilled hole for a cotter pin. Once the nut is tightened, the pin is inserted through the aligned notches and the hole, then bent to secure the nut in place.

Wing Nut

Wing Nut

Wing Nut

A wing nut is a type of nut distinguished by two large, opposed ‘wings’ that allow for easy manual turning and tightening, without the need for tools. The most distinctive feature of a wing nut is its two large, flat, wing-like projections, which extend from either side of the nut’s body. These wings provide a larger gripping surface.

Push Nut

Push Nut

Push Nut

A push nut is a type of fastener that’s designed to be pushed onto a mating part, such as a bolt or a shaft, without the need for threading, tools, or additional hardware. Push nuts are typically made with a simple, circular design and have an interior edge with slightly inward-bending prongs or teeth. These teeth grip the mating part when the nut is pushed into place.

Slotted Nut

Slotted Nut

Slotted Nut

A slotted nut is a type of nut that has slots cut into one end. The slots are designed to align with holes in a mating bolt or stud, allowing the insertion of a cotter pin for secure locking. The slotted nut and cotter pin combination is a simple yet highly effective way to ensure that a nut stays in place under conditions where it might be prone to loosening. It’s a tried and true method that has been used in many fields for decades.

Spring Nut

Spring Nut

Spring Nut

A spring nut, also known as a speed nut, clip nut, or sheet metal nut, is a type of fastener that incorporates a spring-like mechanism. It is designed to attach and secure objects to sheet metal or other thin materials. Spring nuts are valued for their convenience, especially in situations where access is limited or where speed and ease of assembly are priorities. Their spring action ensures a tight grip and reduces the likelihood of loosening over time due to vibration or movement.