Housing screw sizes vary depending on the object being screwed together. For instance, the housing screw size for a handlebar switch is 10-32 for 95-earlier housings and 10-24 for 96-up. On the other hand, the housing screw size for a GoPro is m5x .8 in metric, which is equivalent to UNC 10-24 and UNF 10-32.
What You'll Learn
Handlebar switch housing screw size
The handlebar switch housing screw size depends on the type and model of the motorcycle. For Harley Davidson motorcycles, the screw size is 10-24 x 1/2", with two screws for each switch housing. The specific screw type is a button head torx.
For older Harley Davidson models from 1995 and earlier, the screw size is 10-32, while for later models from 1996 onwards, it is 10-24.
It is important to verify the correct screw size for your specific motorcycle model before attempting any repairs or replacements. Additionally, it is recommended to consult a professional or refer to the manufacturer's instructions for proper handling and installation procedures.
When replacing handlebar switch housing screws, it is also advisable to use high-quality stainless fasteners to ensure durability and longevity.
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MAF housing screw size
The MAF housing screw size depends on the make and model of the vehicle.
For a Mitsubishi Lancer Evolution, the MAF housing screw size is 6-32 by 7/16" pan head screws. The stock screw size is T25 Torx.
For a 2006 WRX, the MAF screw size is #8 x 1/2" standard screw (wide thread pitch, not metric). While an M4 x .7 screw will fit, the pitch is narrower than the original screw.
For a 2018 Honda Civic, the MAF sensor screw size is M4 x 0.7.
For a 2013 Evo X, standard self-tapping screws can be used to attach the MAF sensor to the stock intake.
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Converting metric to UNC and UNF
When it comes to housing screw sizes, it's important to know that metric screws and inch screws may look similar, but they have different thread types and fundamental units. This means that screw types cannot be used interchangeably. However, you can use conversion charts to find the nearest-sized metric coarse, metric fine, unified coarse (UNC), or unified fine (UNF) fasteners.
To convert metric to UNC and UNF, you can refer to the following UNC and UNF conversion charts. These charts provide a clear comparison of the most common sizes, allowing you to estimate the approximate equivalent between UNC/UNF and metric coarse or fine threads.
UNC to Metric Conversion Chart
On the left side of the UNC to Metric Conversion Chart, you will find the UNC thread sizes, and on the right side, you will see the equivalent metric coarse thread sizes.
UNF to Metric Conversion Chart
As for the UNF to Metric Conversion Chart, the left side shows UNF thread sizes, while the right side displays the corresponding metric fine thread sizes.
It's worth noting that UNC stands for Unified Coarse thread pitch, and UNF stands for Unified Fine thread pitch. However, the number indicating the threads per inch is more important than the UNC or UNF notation when selecting the right screw.
For example, let's say you have a metric screw size of M5 x 0.8 and want to find the equivalent UNC or UNF size. By consulting the conversion charts, you can determine that the closest UNC size is 10-24, and the closest UNF size is 10-32.
In conclusion, while metric and UNC/UNF screw sizes cannot be interchanged, conversion charts provide a valuable tool for estimating equivalent sizes between the two systems.
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Self-tapping screws
Thread-forming screws may have a non-circular plan view, such as the five-fold symmetry of pentalobular screws or the three-fold symmetry of Taptite screws. Thread-cutting screws, on the other hand, may have one or more flutes machined into their threads, creating cutting edges.
When installing a self-tapping screw, it is important to choose the right size and thickness for the application. Mark the precise location and consider drilling a pilot hole, especially for thicker materials. Place the tip of the screw into the hole or marked position, ensuring that the drill driver or screwdriver is at a 90-degree angle for a straight insertion. Apply consistent pressure while turning the screw clockwise, and continue until the head of the screw is flush with the material. Check the alignment and tighten if needed.
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Length and depth of housing screws
The length and depth of housing screws vary depending on the specific application and type of connection. Here are some detailed guidelines and principles to help you understand and choose the appropriate length and depth for housing screws:
Length and Depth Guidelines:
- Understanding Screw Length: The length of a screw refers to the distance from under the head of the screw to its tip. It is essential to select the correct screw length to ensure a secure connection.
- Metal-to-Metal Connections: For connections between two metal surfaces, the maximum load-bearing length is used. This refers to the thickest amount of material that can be fastened securely by a specific screw. To ensure a secure connection, there should be a minimum of three threads beyond the lower material.
- Metal-to-Wood Connections: When fastening metal to wood, there is a minimum embedment requirement for the screw to perform optimally. When the fastener is fully seated against the metal panel, there should be at least three fully developed threads into the wood substrate.
- Woodworking Applications: In woodworking projects, the length of wood screws is crucial. Screws must be long enough to securely hold the boards together. If they are too short, they may not adequately hold the boards, and if they are too long, they may pierce through to the other side.
- Lateral and Withdrawal Loads: The length of the screw thread inserted into the receiving board depends on the type of forces applied to the boards. For lateral loads or sheer pressure, consider using thicker screws. For withdrawal loads or forces that pull the boards apart, ensure that ample screw threads are inserted, typically aiming for 1 to 1-1/2 inches of thread.
- Specific Applications: For small crafts, hinges, and drawer slides, a #6 screw with a length ranging from 1/2 inch to 1-1/2 inches is suitable. For general furniture construction and light construction, a #8 screw ranging from 5/8 inch to 3 inches is recommended. For heavy-duty construction and hanging solid-core doors, consider using a #12 or #14 screw with lengths ranging from 3/4 inch to 6 inches.
- Pilot Holes: Drilling pilot holes can help prevent splitting in hardwoods. The size of the pilot hole should match the diameter of the screw shank. In modern production screws, the shank diameter is smaller than the major diameter but larger than the minor diameter, resulting in a deep thread profile for better holding power.
- Screw Gauge: The gauge of a screw refers to its thickness. Screws must be thick enough to grip the material securely. If the screw is too thin, it may pull out, and if it is too thick, it may split the material.
Best Practices and Recommendations:
- 2/3 Rule: As a general guideline, aim to have about 2/3 of the screw threaded into the secondary piece. As the thickness of the material increases, this ratio can be reduced to 1/2 of the screw shank threaded into the secondary piece.
- Pilot Hole Size: When drilling pilot holes, use a bit that matches the diameter of the screw shank. For traditional wood screws, use a tapered drill bit to create a tight fit for maximum holding power. For modern production screws, a straight drill bit works well due to their straight shank design.
- Material Considerations: Consider the type of material being fastened. For metal-to-wood applications, choose screws designed for fastening wood, such as utility screws or steel screws. For precision woodworking and indoor furniture, steel or stainless steel screws with thicker bodies are often used.
- Head-Bore Size: The head-bore size refers to the diameter of the screw head. When selecting screws, ensure that the head size is appropriate for the application and will not interfere with other components.
- Screw Length Flexibility: In some construction details, you may have limited choices regarding screw length. It is crucial to select the appropriate length to ensure a secure connection without compromising the integrity of the materials.
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Frequently asked questions
While the exact screw size is not known, standard self-tapping screws can be used as the seal is established with an o-ring.
The handlebar switch housing screws are 10-32 on 95-earlier housings and 10-24 on 96-up.
The GoPro screw size is m5x .8 in metric, which is equivalent to UNC 10-24 and UNF 10-32.
The housing screws for the Steam Deck are self-tapping and the sizes are available on page 2 of the PDF in the hardware repository on GitLab.