• Special Screws
  • Special Material Screws


Hex Socket Head Cap Screws (Tantalum)

  • Cleanroom Specification
  • Chemical-proof

Dimension Drawing

SNSTAHex Socket Head Cap Screws (Tantalum)寸法図

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 L1 B Tensile Breaking
Load (N)*1
SNSTA-M3-6 M3 0.5 6 5.5 3 2.5 1360 1.5 - CAD RFQ

*1: Values in chart are for reference only. They are not guaranteed values.
● Batch cleanroom packing is provided for orders containing multiple items of the same size.

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Main Body Tantalum


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


  • Tantalum hex socket head cap screws.
  • Tantalum is a material characterized by excellent chemical resistance and high specific gravity.
  • With excellent corrosion resistance to strong acids such as sulfuric acid, it is also resistant to aqua regia.
  • The specific gravity is approximately twice that of general steel and stainless steel.
  • Cleanroom wash/cleanroom packing provided. ⇒Cleanroom Wash / Cleanroom Packing Service

Physical Property

Tantalum SUS304
Specific Gravity 16.65 7.93
Longitudinal Elastic Modulus (GPa) 185 193
Specific Heat (J/kg・K) 140 500
Linear Expansion Coefficient (K-1) 6.4 × 10-6 17.3 × 10-6

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

Mechanical Properties

Tantalum SUS304
Tensile Strength (N/mm2) 271 520 or More
0.2% Proof Load (N/mm2) 189 205 or More
Elongation (%) 51.2 40 or More

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

Product List

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