144-Piece 12.9 Grade Metric Hardware Assortment: Precision Engineered for Demanding Applications This metric bolt and nut assortment delivers an expansive selection of 9 distinct sizes of black-oxide coated M6 metric fasteners, lengths from 12 - 40mm. Every component adheres to the strictest industrial standards: Hex Head Screws and nuts Grade 12.9, Flat Washers Grade 12, spring Washers Grade 8.
Engineering Superiority: The 12.9 Grade Advantage Experience unmatched mechanical performance with bolts forged from hardened carbon steel. Tensile Strength: 12.9 Grade (1,220 MPa). Yield Strength: 12.9 Grade (1,100 MPa). Surface Resilience: The black oxide coating provides
Each fastener is machined to exacting tolerances: Hex Bolts: Coarse threading (M6: 1.0mm pitch). Hex Nuts: Match bolt threading with hardened construction.
Industrial-Grade Applications Deploy this kit with confidence in critical scenarios: Automotive: Engine bracket mounting (M8x40 bolts), transmission service (M6 spring washers), chassis reinforcement. Machinery: CNC equipment assembly (M5 precision bolts), hydraulic press frame construction (Grade 12.9 M8 bolts). Structural: Steel truss connections, scaffolding anchor points requiring 1,200+ MPa shear strength. DIY/Construction: Heavy timber framing (M8 sets), solar racking systems (black oxide UV resistance), marine trailer repairs. Assorted Bolts and Nuts Assortment: 12.9 grade hex bolts nuts for superior strength and durability. Paired with 8-grade spring washers, 12-grade flat washers 144 Piece Hardware Assortment: This assortment includes M6 hex bolts, nuts, flat washers, and spring washers in 9 essential sizes, providing a complete metric bolt and nut assortment for any project Versatile Heavy-Duty Applications: Perfect for machinery repair, automotive maintenance, industrial equipment, construction, and serious DIY projects. This assorted bolts nuts and washers kit tackles demanding tasks where high-strength, metric hardware is required Metric Bolt Assortment: All metric hex bolts feature standard hex head sizes and standard metric thread pitches for universal compatibility Wide Size Range: Includes hex bolts M6x12mm, M6x16mm, M6x20mm, M6x25mm, M6x30mm, M6x40mm.