M3 A2 Stainless Socket Cap Bolts With Shank

Product Description

M3 A2 Stainless Steel Socket Cap Bolts With Shank

M3 socket head cap bolts manufactured from corrosion-resistant A2 stainless steel. These part-threaded fasteners have an internal hexagon drive and an unthreaded shank, making them suitable for machinery, equipment, assemblies and general engineering applications where a compact cylindrical head is required.

• Thread size: M3 × 0.5
• Thread type: Standard metric coarse
• Material: A2 stainless steel
• Head style: Cylindrical socket head
• Drive: Internal hexagon
• Nominal hex key size: 2.5mm
• Nominal head diameter: Approximately 5.5mm maximum
• Nominal head height: 3mm
• Thread length: 18mm
• Construction: Part threaded with an unthreaded shank
• Available lengths: 25mm to 60mm
• Dimensional pattern: DIN 912 / ISO 4762

These bolts have a standard M3 × 0.5 coarse thread and must be used with a matching M3 × 0.5 nut or tapped hole. They are not compatible with imperial threads or other metric diameters.

Shank lengths are calculated by subtracting the listed 18mm thread length from the nominal overall length. Confirm critical dimensions before specifying these bolts for precision assemblies.

A2 Stainless Steel

A2 stainless steel provides good corrosion resistance for many indoor, outdoor and general engineering applications. For marine environments or regular exposure to salt and chlorides, A4 stainless steel will usually provide better corrosion resistance.

A2 identifies the stainless-steel material group. It does not by itself state a mechanical property class such as A2-70 or A2-80.

Preventing Thread Galling

Stainless steel threads can gall or seize during installation. Clean mating threads, suitable anti-seize lubricant, controlled installation speed and avoiding excessive tightening can help reduce the risk.

Useful Guides and Matching Components

• Matching metric nuts
• Washers
• Metric and imperial thread guide
• A2 versus A4 stainless steel guide
• Stainless thread galling guide

Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.