M3 Hex Socket Head Cap Screw Assortment with Nuts and Washers in Eight Lengths 750-Piece Kit

An M3 hex socket screw assortment supplies matched metric fasteners for 3D printers, electronics, RC models, CNC machinery, chair repairs, prototypes, and other detailed DIY work. The Fgruh FG001-11 kit contains 750 black M3-0.5 socket-head cap screws, nuts, and washers arranged by size in a labeled compartment case.

Eight screw lengths are included: 6, 8, 10, 12, 16, 20, 25, and 30 millimeters. The screws use grade 12.9 alloy steel with black zinc plating for strength, wear resistance, corrosion resistance, and oil-free handling. Their three-millimeter nominal diameter and standardized metric thread support matching M3 hardware, with source dimensional error stated below 0.01 millimeter. This listing also combines many other kits across M1 through M6, mixed metric ranges, stainless-steel variants, head styles, and quantities from 115 to 2,300 pieces. Those specifications are not interchangeable, so choose the M3 750-piece SKU when the detailed set is required. Match thread pitch and length to the receiving part, avoid cross-threading, apply project-specific torque, and use appropriate corrosion protection for demanding outdoor exposure.

Specifications

• Brand: Fgruh
• Model: M3-0.5
• Part number: FG001-11
• Product: Metric socket-head screw assortment
• Detailed quantity: 750 pieces
• Detailed thread: M3 x 0.5
• Nominal diameter: 3 mm
• Lengths: 6 8 10 12 16 20 25 and 30 mm
• Head: Hex socket cap
• Included fastener types: Screws nuts and washers
• Material: Grade 12.9 alloy steel
• Finish: Black zinc
• Color: Black
• Source dimensional error: Less than 0.01 mm
• Uses: Electronics 3D printing RC CNC and DIY repair
• Storage: Labeled compartment case
• Box dimensions: 7.95 x 4.21 x 0.67 in