DIN Specialty Fasteners Catalog
These meticulously engineered impossible fasteners are expertly designed to address common workshop challenges, such as misaligned holes, unintentional countersinks, and inaccuracies in hole placement. Whether you're facing a minor setback or a recurring issue, we offer the ideal solution.

Specialty Fasteners now available!
Thanks to your incredible support on Kickstarter, we smashed our goal with 1,060% funding and turned this project into reality! Now, every one of our hilariously useless fasteners is available for purchase—right here on this site! 🚀🔩

Precisely impossible.
Inspired by the infamous "HAYES Special Fastener Specifications" engineering meme, this full-metal and wood replica transforms the impossible into reality. Crafted from solid aluminum and precisely CNC machined, each of the twelve fasteners is a unique masterpiece of engineering that will leave you both amazed and utterly confused. Perfect for sparking laughter and conversation, these quirky fasteners are sure to be a hit with your engineer friends.

Specialty Bolt
For Mismatched Holes
This revolutionary fastener bridges the gap between poor planning and blind optimism—perfect for holes that just don’t line up!

Specialty Bolt
For Holes Too Near The Edge
Finally, a screw that embraces the thrill of structural failure! Designed for those ambitious hole placements that flirt with disaster.

Specialty Bolt
For Holes Countersunk Too Deep
Say goodbye to fasteners disappearing into the abyss—this one reaches depths unknown and still tries to hold on.

Specialty Bolt
For Holes Drilled Crooked, Then Straight
A fastener that understands your journey: from wonky to precise, but still somehow... not quite right.

Specialty Bolt
With Serrated Head for Vice Grip
Who needs a screwdriver? This screw demands a vice grip, a firm handshake, and possibly a second attempt.

Specialty Bolt
For Holes Countersunk on the Wrong Side
Oops? No worries! This bolt is specially engineered to "fix" holes that face the wrong way—sort of.

Specialty Bolt
Binocular Bolt for Double-Drilled Holes
Two holes? One fastener? No problem! This bolt heroically spans the void between your greatest drilling miscalculations.

Specialty Bolt
For Holes Not Square
Because not every hole can be a right angle, this screw thrives in the world of slightly-off geometry and good-enough engineering.

Specialty Bolt
For Holes Drilled Too Large, Then the Right Size
A fastener with commitment issues—filling in where things got out of hand before settling into the correct size.

Specialty Bolt
For Tapered Holes
When your hole is on a slippery slope, this fastener follows suit with a shape that defies standard engineering. Also for use with all nuts size M4 through M12, including imperial sizes.

Specialty Bolt
For Reducing Assembly Time
Why waste time measuring twice when you can just drill twice? This fastener "streamlines" the process by working with your best guess.

Specialty Bolt
For Double-Countersunk Holes
Twice the countersink, twice the confusion—this screw boldly attempts to solve a problem you definitely created.