4x40 mm screws rounded head BTR class 10.9 (per unit)

4x40 mm screws

New Ø4x40 mm screw with rounded head BTR adaptable for motorcycle, scooter, moped, quad 50cc, 125cc and other displacements.
Class 10.9 means that the screw is made of low carbon steel or bonded steel. This grade is widely used in automotive industry applications.
Class (or grade) 10.9 screws have a breaking strength of approximately 1000N/mm² and a yield strength of 900N/mm².

Technical characteristics and dimensions

• Brand: generic
• Material: steel
• Colour: grey
• Thread diameter: 4 mm
• No threading: 0.70
• Overall length: 42 mm
• Length under head: 40 mm
• Head Outer Diameter: 7.4mm
• Sold individually
• Screws with an Allen key (BTR)
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