M3 ONE – Need One? Print One | M3×10 Screw + Nut

Attention: Before first use, gently thread the nut onto the screw and back off a few times, without clamping any parts, to help smooth minor printing irregularities. Do not force or overtighten. M3 ONE – Need One? Print One  Missing one small screw? Print just what you need. M3 ONE is an original M3×10 screw with a matching nut, designed for FDM printing with a 0.4 mm nozzle. A compact option for lightweight DIY projects, electronics enclosures and robotics prototypes. Features: Enlarged hex head and reinforced head-to-shank transition. Right-hand thread with a 0.5 mm pitch and flattened crests. Matching nut with entry chamfers and clearance for FDM printing. Designed to print without supports in the supplied orientation. Approximately 0.30 g of PLA for the screw and nut together, calculated from model volume. Purging, brim and other waste are excluded. Recommended starting settings for Bambu Lab A1: 0.4 mm nozzle, 0.08 mm layers. 4 walls and 100% infill. Screw head flat on the plate; nut flat with its hole vertical. Supports off. External walls at 20–25 mm/s. The supplied 3MF files contain geometry only. Select your printer and material settings in Bambu Studio and check the sliced preview before printing. Please note: This is an experimental printed fastener with an adapted thread profile, not an ISO-certified screw or nut. The meshes have been checked digitally, but physical fit, strength and printability have not yet been validated. A small enlarged thread zone near the screw head is intended to explore increased friction. It does not guarantee self-locking or vibration resistance, particularly with the matching clearance-fit nut. Test the fit gently by hand before use. Do not force or overtighten. Use only for light-duty, non-critical applications. Do not use for structural loads, safety-critical assemblies, high temperatures or significant vibration. No load capacity or tightening torque is specified. Boost MeOne missing screw, one small print. 🔩 if you like the idea or find M3 ONE useful, a Boost helps support more practical, low-material designs. Thank you!