• Special Screws
  • Vacuum Application Screws


Hex Socket Head Cap Screws (Hastelloy C-22 equiv.) with Ventilation Hole

  • Vacuum
  • Cleanroom Specification
  • Chemical-proof

Dimension Drawing

SVSH-C22Hex Socket Head Cap Screws (Hastelloy C-22 equiv.) with Ventilation Hole寸法図



M (Coarse)
Nominal of Thread

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B d max. Mass
SVSH-M8-16-C22 M8 1.25 16 13 8 6 2 13 - CAD RFQ
SVSH-M8-20-C22 M8 1.25 20 13 8 6 2 15 - CAD RFQ
SVSH-M8-25-C22 M8 1.25 25 13 8 6 2 17 - CAD RFQ
SVSH-M8-30-C22 M8 1.25 30 13 8 6 2 19 - CAD RFQ
SVSH-M8-35-C22 M8 1.25 35 13 8 6 2 21 - CAD RFQ

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

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Related Services


Main Body UNS N06022 (Hastelloy*1C-22 equiv.)

*1: Hastelloy is a registered trademark of Haynes International, Inc.


Vacuum devices / Vacuum chambers / FPD production equipment / Semiconductor manufacturing equipment / Electron microscopes /
Printed circuit board etching devices / Metallic surface treatment equipment and facilities / Chemical plants


  • Hastelloy C-22 hex socket head cap screws SNSH-C22 with ventilation hole.
  • The ventilation hole easily releases gas trapped in the screw holes of equipment and machines, and supports vacuum drawing of vacuum devices.
  • Hastelloy C-22 is one of the few metals which can withstand wet chlorine gas, hypochlorite, and chlorine dioxide.
  • Excellent corrosion resistance against oxidizing and reducing acids and salts. ⇒The Properties of Screws Made of Special Materials
  • Supports use with vacuum equipment in corrosive environments.
  • Cleanroom wash/cleanroom packing provided.⇒Cleanroom Wash / Cleanroom Packing Service

Mechanical Properties

Hastelloy (UNS N06022) SUS304
Tensile Strength (N/mm2) 690 or More 520 or More
0.2% Proof Load (N/mm2) 310 or More 205 or More
Elongation (%) 45 or More 40 or More

Values in chart are for reference only. They are not guaranteed values.

Physical Property

Hastelloy (UNS N06022) SUS304
Specific Gravity 8.69 7.93
Longitudinal Elastic Modulus (GPa) 206 193
Specific Heat (J/kg・K) 414 500
Electric Resistance (µΩ・m) 1.14 0.7
Linear Expansion Coefficient (K-1) 12.4×10-6 17.3×10-6

Values in chart are for reference only. They are not guaranteed values.

Product List

Click here to see SVSH-C22

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