About

M6 or 1/4-20? Every trip to the hardware store starts with the same question. Metric or imperial, thread pitch, head type, grade — the specs exist in manufacturer catalogs, but good luck finding them when you're standing in the fastener aisle trying to match a bolt.

I built fasteners.fyi so the answer is one search away. Every fastener type, every spec, sourced from manufacturer datasheets and industry standards.

What it does

fasteners.fyi is a specification database for screws, bolts, anchors, nuts, and washers. Look up any fastener type and get dimensions, thread specs, strength grades, and material options. No opinions — just reliable technical data.

Built by Kevin Smith at Centricle. No ads. No sponsored content. No affiliate links.