Stainless Bolt Industries is one of the reliable and chief manufacturer of nuts and bolts, spare parts and tools is organized with all modern machines and latest Technology. We manufactured many types of bolts and nuts in our industry.

Din 439 Check Nuts are standard nuts with a reduced height in comparison to the hexagon full nut. Also known as ‘check’ nuts; they are commonly used with any male fastener with the same thread diameter and pitch, used to mate a stack or single part together.

Standard Followed for DIN 439 Check Nuts

  • BS 3692
  • BS 57
  • IS/ 1363
  • IS/ 1367
Din 439 Lock Nuts graph

All measurements in millimeters (mm)

d1sem
M244.321.2
M35.56.011.8
M477.662.2
M588.792.7
M61011.053.2
M81314.384
M101718.95
M121921.16
M142224.497
M162426.758
M182729.569
M203032.9510
M223235.0311
M243639.5512
M274145.213.5
M304650.8515
M335055.3716.5
M365560.7918