Flange Head Screws.

What are Flange Head Screws?

Flange head screws, a cornerstone when it comes to precision engineering components, blend reliability with innovation and efficiency. Defined by their distinctive design, these screws incorporate a circular flange under the head, acting as an integrated, non-spinning washer. This unique feature distributes pressure over a larger area, enabling a more secure and load-distributed fastening with less chance of damaging the surface. Perfect for applications requiring a streamlined yet robust hold, flange screws seamlessly interact with various components, ensuring a flawless fit every time.

How Flange Head Bolts Work.

At the heart of flange head bolts is their non-reliance on additional washers. Their design excels across numerous industries, from automotive to aerospace, where precision and reliability are non-negotiable.

In scenarios demanding secure fastening with an evenly distributed load - think engine mounts or aircraft fuselage - flange head screws shine. Their design not only enhances the evenness of load distribution but also reduces the need for separate washers, streamlining assembly processes. Whether in a high-speed assembly line environment or securing critical infrastructure, flange head screws provide efficiency and peace of mind through their steadfast performance.

Flange Bolt Material Compositions.

Choosing the right material is pivotal in the application of flange head screws. At Accu, we offer a variety of flange head stainless steel screws in A2, A4 and High Tensile (10.9) variants catering to diverse project needs.

A2 & A4 Stainless Steel variants offer corrosion resistance and durability, ideal for outdoor or harsh environments. The High Tensile Stainless Steel (10.9) option is the go-to for applications requiring superior strength and fatigue resistance.

Each material brings its benefits, ensuring your projects not only last but excel in their intended environments.

Sizes, Types and Finishes.

Accu prides itself on offering flange bolts in a broad range of sizes and types, accommodating projects of all scopes, from the popular flange head socket cap screw to flange head self-drilling screws for various materials.

Ranging from the smallest thread size of M2 (2mm) to the largest of M12 (12mm), our range caters for all popular sizes, most notably, M6, M8 and M10 flange bolts. With thread lengths from 3mm to a substantial 120mm, our off-the-shelf offering is designed to meet your precise needs. If you're unable to find the head type, drive or size. that you're looking for, we always offer custom manufacturing of any component.

The size of flanges on offer depends on the size of the screw however they do range from 4mm in diameter to 26mm, covering a wide range of project requirements. Drive types include hex socket, Torx, Pozi and hex flange bolts, providing versatility and ease of installation.

Lastly, our special finishes, like the AccuLock thread locking patches for vibration resistance and AccuBlack chemical blackening for aesthetic coherence, add an extra layer of customisation which can also reduce assembly steps and increase the efficiency of your project.

FAQs.

Q: What does a flange screw do?.

A: A flange screw is designed to provide a secure fastening with the added benefit of distributing the load over a wider area thanks to its integrated flange which acts like a washer. This reliably prevents the screw from potentially damaging a workpiece and provides a secure fastening resistance against vibrations.

Q: What is a flange screw used for?.

A: Flange screws are used in various project applications where precision, efficiency and reliability are crucial. From securing engine components in the automotive industry to manufacturing assembly lines, these screws ensure a robust, vibration-resistant fastening solution.

Q: What is the difference between threaded and flange?.

A: The main difference lies in the design; while traditional screws have a smooth head requiring a separate washer for load distribution, flange screws feature an integrated flange that acts as a built-in washer, providing greater surface area contact and load distribution without the need for additional components.

Q: What does a flange screw look like?.

A: A flange screw is characterised by its unique head, which includes a built-in flange at the base. This flange extends outwards, wider than the head itself, providing a washer-like function that distributes the load evenly.

Q: How long should flange screws be?.

A: The length of a flange screw should be chosen based on the thickness of the materials being fastened and the depth of thread engagement required. It's crucial to ensure the screw is long enough to provide adequate thread engagement while not being so long as to protrude unnecessarily on the other side.

Bespoke Flange Head Screws Manufacture.

High precision, bespoke manufacture of Flange Head Screws to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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