Need some see-through fasteners for a project? This set of 60 clear acrylic thumbscrews is super handy. Each screw is M4 size (4mm diameter) and 12mm long (about 0.47 inches), with a 0.7mm thread pitch. They have a large, knurled head with ridges for an excellent grip, plus a slotted drive so you can also use a screwdriver. The set is complete: you get 60 screws, 60 matching nuts, and 60 washers. They're made from acrylic/polycarbonate, which is lightweight, strong, and has a glass-like clarity (up to 92% light transmission) but is much more impact-resistant. They're moisture-resistant and have good chemical resistance to mild substances. Perfect for electronics projects, display cases, DIY crafts, or anywhere you need a fastener that's functional but also discreet or aesthetically pleasing. No tools are needed for hand-tightening – just use your fingers!