• Special Screws
  • Low Profile Screws・Small Head Screws


Hex Socket Head Cap Screws with Special Low Profile (Nylon Patch)

  • Space

Dimension Drawing

SSH-EL-ALKHex Socket Head Cap Screws with Special Low Profile (Nylon Patch)寸法図



M (Coarse)
Nominal of Thread

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B t s L2 Max. Tightening
Qty per Pack Mass
CAD Standard
SSH-M3-4-EL-ALK M3 0.5 4 6 1.3 1.5 2 1 2.5 0.7 10 0.39 17.05 CAD Cart

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Main Body SCM435
Electroless Nickel Plating
Nylon Patch Nylon 11
Strength Class Thread Part: 10.9
Head *1: 5.8 (M2-M8)
4.8 (M10)

*1: Do not exceed the max. tightening torque. Though strength is increased through heat treatment, the head strength is less than that of thread.


Reducing the size of equipment and devices / Return and fall prevention of screws


  • The friction of the nylon adhered to the thread suppresses the return rotation of the thread.
  • Even if the tightening force is lost, the return rotation is suppressed, preventing the screws from falling off.
  • All head heights are 1.5mm or less.
  • For space-saving of equipment/devices and applications with limited overhead space.

Customer Service

  • Usage Method
  • Technical Question
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8:00 to 17:00 on weekdays, Eastern Standard Time