• Special Screws
  • Vacuum Application Screws


Socket Head Cap Screws for Cover Caps

  • Vacuum
  • Cleanroom Specification

Dimension Drawing

SNCPSSocket Head Cap Screws for Cover Caps寸法図



M (Coarse)
Nominal of Thread

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L M1 (Fine)
Nominal of Thread
Pitch L1 B t L2 SCAP Part No. Mass
SNCPS-M3-6 M3 0.5 6 M5 0.5 2 2 1.5 Full Thread SCAP-3 0.53 4.29 CAD Cart
SNCPS-M3-8 M3 0.5 8 M5 0.5 2 2 1.5 Full Thread SCAP-3 0.62 4.52 CAD Cart
SNCPS-M3-10 M3 0.5 10 M5 0.5 2 2 1.5 Full Thread SCAP-3 0.7 4.52 CAD Cart
SNCPS-M3-12 M3 0.5 12 M5 0.5 2 2 1.5 Full Thread SCAP-3 0.78 4.61 CAD Cart

● Batch cleanroom packing is provided for orders containing multiple items of the same size.

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Related Services


Cap Screws
Main Body SUSXM7
(S.S. grade:A2)
Strength Class A2-50


Film formation equipment, etching devices, FPD production equipment, and semiconductor devices


  • Combine SCAPCover Cap and SNCPSSocket Head Cap Screw for Cover Cap.
  • These caps prevent the corrosion of screw heads due to vacuum chamber processing gas and plasma.
  • SCAPhas 2 material types as standard.
    SCAP-AL----Aluminum alloy
  • The screw connection section is made of stainless steel, so this product has a higher tightening strength than aluminum or ceramic screws.
  • Cleanroom wash and cleanroom packing are completed.⇒Cleanroom Wash / Cleanroom Packing Service
  • Other requested materials such as Inconel*1 and Hastelloy*1 can be used for Cover Caps.

*1: Inconel is a registered trademark of Special Metals Corporation.
*1: Hastelloy is a registered trademark of Haynes International, Inc.

Precautions for Use

Corrosion resistance changes depending on use conditions. Always carry out tests under conditions same as actual conditions before use.


After tightening SNCPS Socket Head Cap Screw for Cover Cap, assemble SCAP Cover Cap so that it covers the head of SNCPS.
Ensure that the tightening torque of SCAP does not exceed the recommended torque in the chart.

SNCPSSocket Head Cap Screws for Cover Caps

Related Products

SCAP-PTCover Cap made of PTFE (Polytetrafluoroethylene), which has excellent chemical resistance, is available.

SNCPSSocket Head Cap Screws for Cover Caps

Product List

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