M5 x 40mm Hex Head Bolts | 10-Pack, Grade 8.8, Partial Thread (DIN 931)

M5 x 40mm Hex Head Bolts | 10-Pack, Grade 8.8, Partial Thread (DIN 931)

Secure assemblies requiring both strength and precision alignment with this 10-Pack of M5 x 40mm Hex Head Bolts. Manufactured to DIN 931 standards from high-tensile Grade 8.8 steel, these bolts feature a 16mm unthreaded shoulder ('b') for enhanced shear resistance, followed by a fine 0.8mm pitch thread. This engineered design is ideal for applications in machinery, electronics enclosures, and fabricated assemblies where a smaller-diameter bolt must bear load through an unthreaded hole for accurate component location.

Key Features:

• Grade 8.8 High Strength: 800 N/mm² tensile strength ensures reliable performance in demanding, smaller-scale applications.

• Precision Shoulder Design (DIN 931): 16mm unthreaded shank provides increased shear strength and aids in accurate component alignment.

• Extended M5 x 40mm Length: A versatile length suitable for fastening components of moderate thickness where a precise shoulder is required.

• Hexagon Head (8mm AF): Compact head for easy tightening with a small spanner or socket.

• Convenient 10-Pack: Consistent quality and quantity for projects requiring multiple high-strength M5 fasteners.

Specifications:

• Part No.: 4990158

• Standard: DIN 931 / ISO 4014

• Size: M5 x 40mm

• Thread Pitch: 0.8mm

• Head: Hexagon, 8mm AF (S), 3.5mm height

• Shoulder Length (b): 16mm (unthreaded shank)

• Material/Strength: Steel, Grade 8.8

• Thread: Partial (with shoulder)

• Pack Quantity: 10

Ideal For: Precision machinery assembly, automotive components, electronic chassis, light fabrication, and any application requiring a strong, small-diameter bolt with a precise, load-bearing shoulder.

Engineered for strength and accuracy in compact assemblies. The reliable choice for critical M5 fastening.