M3.5 X 70MM Machine Screw

Key specs: diameter M3.5, length 70 mm, material zinc-plated steel, finish zinc plating for corrosion resistance, and a screwdriver-friendly head designed for easy tightening.

This screw is designed to securely fasten components in wood, plastic, and metal. It’s well-suited for light- to medium-duty assemblies such as frames, furniture, and home improvement projects like shed construction.

Steps: 1) align the parts you’re fastening, 2) if needed, pre-drill a pilot hole appropriate for the material, 3) insert the screw and begin tightening with a standard screwdriver, 4) tighten gradually and evenly, stopping before over-tightening to avoid stripping or damage.

Length should allow enough engagement with the base material without risking protrusion. For typical frames or thicker materials, 70 mm provides deeper engagement; for thinner parts, a shorter length may be preferable. Ensure the thread length matches the material thickness being joined.

The zinc-plated steel offers basic corrosion resistance suitable for general use. For harsh outdoor or highly corrosive environments, consider stainless variants or protective finishes designed for outdoor exposure.

Compare with: M3.5 x 60mm Machine Screw (shorter for thinner assemblies) — https://fepy.com/product/m3-5-x-60mm-machine-screw; M3.5 x 50mm Machine Screw (even shorter option) — https://fepy.com/product/m3-5-x-50mm-machine-screw; and M3.5 x 70mm Stainless Machine Screw (stainless for enhanced corrosion resistance) — https://fepy.com/product/m3-5-x-70mm-stainless-machine-screw. Use the one that best fits your material thickness and environment.

Yes, if the threads remain undamaged and the screw isn’t stripped, you can reuse it. Inspect the threads for wear and clean any debris before reinserting. Use the appropriate screwdriver bit to avoid cam-out and damaged heads.

The screw is designed for use with a standard screwdriver. Use the corresponding bit that matches the head on your specific screw variant (e.g., slotted or Phillips as applicable) to ensure solid engagement and prevent stripping.

Holding strength depends on material type, hole pilot accuracy, and proper tightening. Use a pilot hole for harder materials, engage the full length into the base material, and avoid over-tightening to prevent stripping or material damage. Pairing with appropriate washers or nuts where needed can also improve load distribution.

If the screw doesn’t meet your needs or you’ve changed your mind, you can pursue a return as long as the item is unused and in its original condition per Fepy’s return terms. Ensure you keep your order details handy to streamline the process.