🦋 Whether you’re building workshop jigs, assembling display racks, or fixing a loose panel on your camper, our metric wing bolts let you tighten and loosen by hand — no wrench needed. The M4 through M10 range covers all your light-duty fastening projects, and the zinc carbon steel holds up nicely in any dry or indoor application. From hobbyists to maintenance pros, if you need a reliable butterfly screw that adjusts fast without tools, this is the set you’ll reach for.
🔩 Key Features of Our Wing Bolts M4–M10
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✔️Hand‑tightening wing head – No tools required; just turn the two large wings with your fingers. Ideal for parts that need frequent adjustment or removal.
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✔️Zinc‑plated carbon steel – The bright zinc finish provides moderate corrosion resistance, perfect for indoor fixtures, woodworking, and covered outdoor use.
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✔️Wide metric size span – Covers M4, M5, M6, M8, and M10 diameters with various lengths. One thread standard for your entire workshop.
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✔️DIN 315 specification – Manufactured to the recognized German industrial standard, ensuring consistent thread fit and head dimensions.
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✔️Versatile grip – The pronounced butterfly wings give you more torque than a knurled thumb screw, yet still keep the overall footprint compact.
📐 Wing Bolt Specifications at a Glance
📦 Each listing is for a specific size – select your diameter and length from the dropdown. Need multiple sizes? Add each to the cart.
❓ Wing Bolt Buyer Questions – Answered
🔹 Are these wing bolts suitable for outdoor use?
They can handle covered outdoor areas like a porch or inside a shed. The zinc plating resists light moisture, but if you need continuous exposure to rain or salt, we recommend upgrading to stainless steel. For typical DIY and indoor fixtures, this zinc carbon steel holds up well.
🔹 Can I use them with wood?
Yes. Drill a clearance hole through the wood piece and secure it from the back with a metric nut and washer. For softwood, a pilot hole may not be needed, but it helps alignment. These are not lag screws, so they don’t thread into the wood itself.
🔹 How many pieces come in one order?
The quantity depends on the variant you choose. Most standard packs contain 10 or 20 bolts of the same size. Check the dropdown menu for the exact count — if you need a mixed set, simply place separate lines for each size. We ship fast from our US warehouse.
🔹 What makes these “DIN 315” wing bolts different from generic thumb screws?
DIN 315 defines the wing shape, head height, and thread tolerance precisely. That means the wings are large enough to deliver solid hand torque without slipping, and the threads consistently fit metric nuts and tapped holes. Many generic thumb screws lack this standardization.
🔹 Can I get a bulk discount for a large project?
Absolutely. If you need 100 pieces or more, reach out via the store’s contact page before ordering. We’ll send you a custom quote with volume pricing. Standard orders also ship quickly, usually within one business day.
