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Guides/General Screw Guide

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Revision as of 04:12, 27 October 2024 by 0 (talk | contribs) (Created page with "Using the correct screwdriver bit when disassembling consoles is essential to prevent screw stripping, a common issue that can complicate repairs. Screw stripping occurs when the driver bit does not fit securely within the screwhead, leading to slippage that wears down the metal. Although Philips (PH) and Japanese Industrial Standard (JIS) screws appear similar, they differ in design and compatibility with specific driver bits. JIS bits can fit both JIS and PH screws, bu...")
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Using the correct screwdriver bit when disassembling consoles is essential to prevent screw stripping, a common issue that can complicate repairs. Screw stripping occurs when the driver bit does not fit securely within the screwhead, leading to slippage that wears down the metal. Although Philips (PH) and Japanese Industrial Standard (JIS) screws appear similar, they differ in design and compatibility with specific driver bits. JIS bits can fit both JIS and PH screws, but PH bits do not fit JIS screws securely, increasing the risk of stripping. For example, most Nintendo consoles and handhelds use JIS screws. This article provides guidance on identifying the correct screwdriver bit for various consoles, common mistakes to avoid, and effective methods for removing stripped screws.

1. Select the correct bit
Identify and use the correct screwdriver bit that matches the screwhead type (e.g., Philips (PH), Japanese Industrial Standard (JIS), or Torx). The bit should fit snugly into the screwhead with no wobble; a loose fit increases the risk of stripping.

2. Align and stabilize
Position the screwdriver directly in line with the screw (90° angle). Holding the tool at an angle can reduce contact between the bit and screwhead, leading to slippage and wear.

3. Apply light downward pressure
Press down very lightly on the screwdriver to maintain stable contact between the bit and screwhead. Aim to create enough downward force to prevent slipping, but avoid pressing too hard. If you find you need to press down excessively to prevent slipping, stop immediately. This often indicates that your screwdriver bit is not the correct type or size. Continuing with excessive force risks stripping the screw head with as few as one or two slips.

Note: For small screws (smaller than PH0), apply minimal or no downward pressure, as excessive force can easily cause damage. For larger screws, apply light to firm downward pressure as needed to maintain contact, depending on the screw's tightness.

4. Turn slowly and steadily
Rotate the screwdriver slowly in a counterclockwise motion, applying even, steady pressure. Sudden or jerky movements can increase the likelihood of slippage, especially if the screw is stubborn or tightly fastened.

5. Stop if slippage occurs
If the bit begins to slip, stop immediately to reassess the bit size or angle. Continuing with a slipping bit can quickly strip the screwhead. Switching to a slightly larger bit may provide the necessary traction to remove the screw.

Stripped screw removal

Stripped screws can pose a challenge in electronics repair, particularly in handheld devices like gaming consoles where screws can be small and tightly secured. Stripping occurs when the screwdriver bit fails to grip the screwhead effectively, often due to using an incorrect bit or applying excessive force. This can complicate disassembly and repair efforts. Fortunately, several techniques can help remove stripped screws without causing further damage to the device. Below are effective methods to tackle stripped screws.

Use the correct screwdriver bit

Sometimes, the correct bit can still grip the remaining edges of the screw head. If the bit slips, try one size larger than the original recommendation.

Rubber band method

Place a flat rubber band over the screw head, then press the screwdriver into the screw through the rubber band. This adds traction and helps the bit grip the screw.

Superglue method

Carefully apply superglue or epoxy to the bit, allowing it to bond with the screw head. Take care to avoid getting glue on surrounding components

Screw Extractor Set

A screw extractor set, like the iFixit “Precision Screw Extractor Set,” can be effective for stubborn screws. Extractors are designed to bite into the stripped screw and allow for easy removal.

Advanced removal methods

If the above methods fail, there are more advanced and riskier options involving power tools. At this point, consider whether you're comfortable using tools like a rotary tool or a drill. These methods can damage the console if not used carefully, so a professional repair may be advisable if you’re uncertain.

Drilling

Use a metal drill bit slightly smaller than the screwhead to carefully drill it out. Only drill enough to remove the head; then, use pliers to remove the remaining screw shaft.

Rotary tool cut

Use a rotary tool (i.e., a dremel) to create a straight groove in the screwhead. Insert a wide flathead screwdriver bit into the new groove and turn slowly to extract the screw.

iFixit offers guides on identifying the correct screwdriver bit through visual inspection, as well as general best practices for using screwdrivers effectively. Reviewing these resources is recommended:

Important Note on iFixit Guide Screwdriver Recommendations Some iFixit repair guides incorrectly specify Philips (PH) screwdriver bits for certain console screws that more closely match the Japanese Industrial Standard (JIS) type. Specifically, JIS bits are often more compatible with these consoles’ inner screws, whereas PH bits can increase the risk of slippage and screw stripping. When uncertain, it is generally safer to use a JIS bit on a PH screwhead rather than the reverse, as JIS bits can fit both JIS and PH screwheads securely.

According to iFixit, their PH screwdriver bits are designed to be cross-compatible with JIS screws, minimizing the risk of damage despite the technical differences between JIS and Phillips (PH) screws. However, caution is advised, as compatibility seems to vary across different iFixit screwdriver kits. Some kits contain PH bits that work effectively with JIS screws, while others do not, leading to potential slippage and screw stripping.

The inconsistency in iFixit's PH bits makes them difficult to recommend, as their primary characteristic seems to be a lack of true PH compatibility. In some instances, these bits may actually be JIS, with differences likely stemming from variations in manufacturing. For example, one instance may show JIS bits with longer flutes, while some iFixit PH bits have a longer flute as well. The following GIF demonstrates an iFixit's PH bit that is not compatible with JIS screws.

File:PHvsJISonJIS.gif
Source: @emerekt.wav on Discord