*USED* Inner Hexagon Socket Head Screw of M4x20 with Washer

Discover a practical, cost-conscious fastening solution with the USED Inner Hexagon Socket Head Screw of M4x20 with Washer. Designed for compact, precise assemblies, this screw combines dependable M4 sizing with a washer to distribute load and protect surface finishes in tight spaces.

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  Size and thread: M4 x 20 mm standard metric screw designed for common M4 threaded holes
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  Drive type: Inner hex socket (Allen) head for secure, slippage-resistant driving
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  Washer included: Washer provides even clamping surface and helps prevent surface damage
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  Condition: USED — shows minor prior-use signs; threads appear intact and suitable for non-critical applications

Why this screw matters for your projects

In electronics enclosures, lightweight machinery, and DIY builds, this M4x20 screw with washer delivers reliable fastening without taking up extra space. The washer spreads clamping force over a larger area, reducing the risk of pull-through on softer materials like certain plastics or thin metal panels. The Allen drive keeps the profile neat and minimizes cam-out during installation, making it ideal for applications where a tidy finish matters as much as holding power.

Ideal use cases

• Electronics housings, control panels, and small enclosures where a discreet, secure fastener is preferred
• DIY furniture repairs, cabinet assemblies, and hobby projects requiring a flush, well-supported connection
• Light machinery or equipment housings where consistent torque and surface protection are important

Practical tips for use

• Align the hole before tightening to avoid cross-threading; use the inner hex socket for a precise fit
• Position the washer under the head to maximize load distribution and surface protection
• Check the overall thickness of the joined materials to ensure full thread engagement for secure fastening
• Because this item is USED, inspect for any obvious wear and replace if you require non-critical loads to be near-new

Whether you’re restoring a vintage desk, assembling a compact electronics cabinet, or outfitting a small project with dependable hardware, this M4x20 screw with washer offers a practical balance of size, function, and value. Add it to your toolkit for reliable, straightforward fastening in everyday builds.