Thread size: M4
Length: 20 mm
Head shape: Internal hexagon
Material: Stainless steel
Stainless steel type: A4 316
Thread type: Metric
Thread pitch: 0.7 mm

The thread complies with DIN standard 912 / ISO standard 4762 and requires an internal hexagon key. We offer a wide range of internal hexagon screws made of A4 (316) stainless steel, available in various thread sizes and lengths. Details can be found in the datasheet and the series overview, which can be downloaded as a file. If A4 stainless steel is not what you are looking for, we also offer internal hexagon head screws made of plain steel, bright zinc-plated steel, titanium, and A2 (304) stainless steel (all according to DIN standard 912). A4 internal hexagon screws with metric threads have a narrow head and are perfect for use in hard-to-reach areas. The fasteners are well-suited for machine repair and maintenance work, as well as in many other fields, including the food and beverage industry, automotive, and aerospace industries. This series of fasteners is made from A4 (316) stainless steel, making it ideal for use in the food and beverage industry as well as in offshore and marine applications. A4 (316) stainless steel has higher corrosion resistance than A2 stainless steel, but is more expensive, yet more affordable than titanium, which offers even greater corrosion resistance.

Features and benefits:

• Can be used instead of hexagon screws with less play
• The internal hexagon screw is the strongest of all head designs
• The head height corresponds to the shaft diameter

Typical applications:

• Machine tool construction and repair
• Safety protection
• Electronic applications
• Household applications
• Medical applications
• Automotive applications
• Plant and maintenance work
• Offshore and shipping applications.