The John Deere Cylindrical Head Screw, M10 x 25 (19M8440) is a headed externally threaded tension fastener designed for through-hole assemblies. It supports tightening or release by turning the cylindrical head and can engage with preformed internal threads or form its own mating thread where required.

Key Features

• Cylindrical head enables controlled tensioning in narrow or constrained spaces
• M10 external thread with 25 mm length for through-hole assemblies
• Functions as a tension fastener that can be tightened or released by turning the head
• Capability to form its own mating thread (self-tapping) in suitable substrates
• Can mate with tapped or preformed internal threads for versatile assemblies
• Insertion through holes simplifies alignment during multi-part installations

Product Details

• Product code: 19M8440
• Thread diameter: M10
• Length: 25 mm
• Head type: Cylindrical head
• Thread type: External
• Function: Tension fastener for through-hole assemblies; can engage internal threads or form its own
• Installation action: Tightened or released by turning the head

Compatibility

• Compatible with standard M10 external threads
• Suitable for through-hole assemblies requiring a cylindrical head tension fastener
• Supports mating with tapped or preformed internal threads
• Offers self-tapping capability for substrates that permit thread formation
• Appropriate for materials and applications where self-formed threads are acceptable and pilot hole sizing is correct
• Best used when components require removable fasteners to adjust tension or disassembly