How to Choose Monitor Mount Screws: M4x12 201 vs 304 Stainless Steel Guide

When configuring a monitor mount (typically adhering to VESA 75x75 or 100x100 standards), M4x12 screws are the most commonly used hardware. However, faced with 201 and 304 stainless steel options and various finishes, many users are unsure what to buy. Based on hardware maintenance guidelines from [wiki.lib00.com](https://wiki.lib00.com), these small screws are critical to the safety of your expensive monitor. This article breaks down how to choose the right M4x12 screws based on material mechanics and practical installation experience. ## 1. Material Comparison: 201 vs. 304 Stainless Steel Load-bearing safety and corrosion resistance are the top priorities. Here is a comparison of common materials: | Material | Corrosion Resistance | Strength/Toughness | Recommendation | Key Characteristics | | :--- | :--- | :--- | :--- | :--- | | **201 Stainless** | Fair | High but Brittle | **Not Recommended** | High manganese content makes it prone to surface rust in humid environments. Long-term reliability is inferior to 304. | | **304 Stainless** | **Excellent** | **Good** | **Top Pick** | Industry-standard material. Excellent rust prevention and toughness, fully meeting the load-bearing needs of monitor mounts. | | **Carbon Steel (Grade 12.9)** | Poor (Needs Plating) | Extremely High | Optional | Usually black. Extremely strong, but highly susceptible to rust if the plating is scratched. | **Expert Tip:** Monitors are often mounted for years. 304 stainless steel ensures that when you eventually dismount the monitor, the screws won't be rusted and seized in the threads. --- ## 2. Surface Finish: Natural vs. Black Once you've settled on 304 stainless steel, you need to choose a color: * **Natural (Raw Silver):** Features no coating, meaning it won't chip and offers the most stable corrosion resistance. The downside is that silver screws can stand out awkwardly against a black monitor mount. * **Black (Electrophoretic/Zinc Black):** A black treatment applied to the 304 surface. The main advantage is a seamless, unified look with black mounts. However, cheap coatings might chip when tightened with a screwdriver. --- ## 3. Advanced Buying Advice and Installation Tips Author DP@lib00 recommends the following advanced criteria based on extensive PC building experience: 1. **Upgrade the Head Type:** Ditch the traditional Phillips head and opt for **"Button Head Socket Cap" (Hex head)** screws. Hex screws distribute torque more evenly, are much harder to strip, and offer a cleaner, high-tech appearance. 2. **Verify Hole Depth (Crucial):** While M4x12 is standard, monitor backplate hole depths vary. If the hole is shallow, a 12mm screw might bottom out, leaving the mount loose (you will need washers). Ensure the screw engages at least 5-6mm into the thread for adequate strength. 3. **The Ultimate Search Term:** To save time, simply search your preferred e-commerce platform for: **"304 Stainless Steel Button Head Socket Cap Screw Black M4*12"**. This is the most reliable, secure, and aesthetically pleasing choice.