M14 x 1.5 10.9 Self Colour Hex Bolts DIN 960

Product Description

M14 x 1.5 Metric Fine 10.9 Grade Self Colour Steel Hexagon Head Bolts

These M14 metric fine hexagon head bolts are manufactured from high-tensile property class 10.9 steel and supplied with an unplated self-colour finish. The M14 x 1.5mm fine-pitch thread provides finer adjustment and a larger stress area than the standard M14 x 2mm coarse thread.

Each bolt is partially threaded, leaving a plain 14mm diameter shank beneath the head. The unthreaded section can pass through the joined components, making these bolts suitable for accurately located assemblies and applications exposed to shear or sideways loading.

Product specifications

• Thread size: M14
• Thread pitch: 1.5mm metric fine
• Material: High-tensile steel
• Property class: 10.9
• Finish: Self colour – unplated steel
• Head style: External hexagon head
• Thread coverage: Part threaded with plain shank
• Threaded length: Approximately 34mm for the listed 50–120mm variants
• Spanner size: 22mm across flats
• Head height: Approximately 8.8mm
• Dimensional pattern: DIN 960
• Available lengths: 50mm to 140mm

Available dimensions

The 140mm length is a live product option, but its threaded and plain-shank lengths are not included in the existing dimensional table. These measurements should be confirmed before use in a dimension-critical assembly.

10.9 high-tensile steel

Property class 10.9 provides substantially higher strength than commonly used 8.8 grade fasteners. These bolts are intended for demanding engineering and mechanical assemblies where an appropriately specified high-tensile fastener is required.

Always use compatible M14 x 1.5 metric fine nuts with a suitable property class. Tightening torque depends on lubrication, joint design, mating materials and operating conditions, so the correct value should be obtained from the equipment manufacturer or project specification.

Self-colour finish

Self-colour steel is unplated and does not provide the corrosion resistance associated with zinc plating or stainless steel. A light protective oil may be present, but additional lubrication, paint or another suitable protective treatment is recommended when the bolts will be exposed to moisture or corrosive conditions.

Standards information

The listed 22mm across-flats head, 8.8mm head height, M14 x 1.5mm thread and 34mm threaded length correspond to the established DIN 960 dimensional pattern for partially threaded metric fine hexagon bolts.

DIN 960:1990-01 is withdrawn. The current international product standard for metric fine hexagon head bolts is ISO 8765:2022. Current ISO editions can use revised dimensional requirements, so these bolts should be described as DIN 960 pattern rather than certified to ISO 8765:2022 unless conformity has been confirmed by the manufacturer.

The former British adoption BS EN ISO 8765:2011 was withdrawn in August 2022. No verified current British product standard is therefore assigned to these particular DIN-pattern bolts. The current BS 3643-2:2007 covers limits and tolerances for ISO metric threads, including fine-pitch threads, but it is a thread standard rather than a complete bolt product standard.

Typical applications

• Automotive and motorsport assemblies
• Machinery and industrial equipment
• Gearboxes, engines and transmission components
• Hydraulic and mechanical equipment
• Fabrication and engineering projects
• Assemblies requiring a plain locating shank

Important fitting information

These bolts have an M14 x 1.5mm fine thread and are not compatible with standard M14 x 2mm coarse-thread nuts or tapped holes. Check the required pitch before ordering and use a correctly fitting 22mm spanner or socket during installation.

Choose from packs of 1, 5, 10, 20, 50 or 100 bolts.

Browse our complete range of metric fine hexagon head bolts, consult our metric and imperial thread data guide, or check our metric spanner size guide.