175pcs 12.9 grade socket head cap screw, nut, and washer set; M5/M6 black carbon steel socket head cap screws; cup head screws

Description

Product Description

This 175-piece set of socket head cap screws is made of high-quality 12.9 grade high-strength black carbon steel with a black anodized finish, providing excellent rust and corrosion resistance. The set includes M5/M6 bolts, nuts, and flat washers, making it ideal for DIY projects, furniture assembly, automotive repair, and industrial applications.

Specifications

Material: Grade 12.9 high-strength carbon steel

Surface Treatment: Blackened (rust-proof)

Head Type: Knurled cylindrical head (Hex socket/Allen head)

Total Quantity: 175 pieces

Included Sizes:

M5 Nuts: 35 pieces

M5×8mm Flat Washers: 35 pieces / M5×12mm Bolts: 8 pieces

M5×16mm Bolts: 8 pieces / M5×20mm Bolts: 8 pieces

M6 Nuts: 25 pieces

M6×8mm Flat Washers: 25 pieces / M6×12mm Bolts: 5 pieces

M6×16mm Bolts: 5 pieces / M6×20mm Bolts: 5 pieces

Storage: Transparent divider plastic box

Features

✅ Grade 12.9 High Strength: Industrial-grade top hardness, high tensile strength, impact resistance, perfect for heavy-duty applications

✅ Black Oxidation Treatment: Excellent rust and corrosion resistance, long service life for indoor and outdoor use

✅ Complete Set: M5/M6 Specifications: Includes bolts, nuts, and washers—one set meets all your fastening needs.

✅ Knurled Allen Heads: High torque, non-slip, easy installation even in tight spaces.

✅ Precision Threads: Clear, smooth threads, tight fit, no slippage, easy installation.

✅ Convenient Storage: Transparent divider box for easy organization and access to all screws.

✅ Wide Applications: Suitable for furniture assembly, automotive repair, machinery manufacturing, DIY projects, etc.

Package List

1 × 175 pieces 12.9 Grade Allen Head Bolt Set (with storage box)