M4 A2 Stainless Socket Cap Bolts Bolts With Shank

Product Description

M4 A2 Stainless Steel Socket Cap Bolts With Shank

M4 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 and general engineering assemblies where a compact cylindrical head is required.

• Thread size: M4 × 0.7
• Thread type: Standard metric coarse
• Material: A2 stainless steel
• Head style: Cylindrical socket head
• Drive: Internal hexagon
• Nominal hex key size: 3mm
• Nominal head diameter: Approximately 7mm maximum
• Nominal head height: 4mm
• Thread length: 20mm
• Construction: Part threaded with an unthreaded shank
• Available lengths: 30mm to 80mm
• Dimensional pattern: DIN 912 / ISO 4762

These bolts have a standard M4 × 0.7 coarse thread and must be used with a matching M4 × 0.7 nut or tapped hole. They are not interchangeable with M4 fine-pitch or imperial threads.

Shank lengths are calculated by subtracting the listed 20mm thread length from the nominal overall length. Confirm critical dimensions before specifying these bolts for precision assemblies.

A2 Stainless Steel

A2 stainless steel offers 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.

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 this 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.