• Special Screws
  • Chemical Resistance Screws

Hex Head Screws - PTFE Coating for Head

SNHS-HTF

  • Chemical-proof

Specs/CAD

Select

M (Coarse)
Nominal of Thread
All
M3
M4
M5
M6
M8
L
All
6
8
10
12
16
20
25
30
35

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L L1 B Recommended Torque
(N・m)
Mass
(g)
Price
(USD)
CAD
Download
QTY
(Piece)
SNHS-M3-6-HTF M3 0.5 6 2 5.5 0.5 0.67 5.95 CAD Cart
SNHS-M3-8-HTF M3 0.5 8 2 5.5 0.5 0.76 5.95 CAD Cart
SNHS-M3-10-HTF M3 0.5 10 2 5.5 0.5 0.85 5.95 CAD Cart
SNHS-M3-12-HTF M3 0.5 12 2 5.5 0.5 0.94 5.95 CAD Cart
SNHS-M3-16-HTF M3 0.5 16 2 5.5 0.5 1.1 6.02 CAD Cart
SNHS-M4-8-HTF M4 0.7 8 2.8 7 1.1 1.6 5.95 CAD Cart
SNHS-M4-10-HTF M4 0.7 10 2.8 7 1.1 1.7 5.95 CAD Cart
SNHS-M4-12-HTF M4 0.7 12 2.8 7 1.1 1.9 6.02 CAD Cart
SNHS-M4-16-HTF M4 0.7 16 2.8 7 1.1 2.2 6.02 CAD Cart
SNHS-M4-20-HTF M4 0.7 20 2.8 7 1.1 2.5 6.02 CAD Cart
SNHS-M5-10-HTF M5 0.8 10 3.5 8 2.2 2.8 6.02 CAD Cart
SNHS-M5-12-HTF M5 0.8 12 3.5 8 2.2 3 6.02 CAD Cart
SNHS-M5-16-HTF M5 0.8 16 3.5 8 2.2 3.5 6.36 CAD Cart
SNHS-M5-20-HTF M5 0.8 20 3.5 8 2.2 4 6.36 CAD Cart
SNHS-M5-25-HTF M5 0.8 25 3.5 8 2.2 4.7 6.52 CAD Cart
SNHS-M6-12-HTF M6 1 12 4 10 3.8 4.9 6.36 CAD Cart
SNHS-M6-16-HTF M6 1 16 4 10 3.8 5.6 6.52 CAD Cart
SNHS-M6-20-HTF M6 1 20 4 10 3.8 6.3 6.52 CAD Cart
SNHS-M6-25-HTF M6 1 25 4 10 3.8 7.2 6.60 CAD Cart
SNHS-M6-30-HTF M6 1 30 4 10 3.8 8.1 6.60 CAD Cart
SNHS-M8-16-HTF M8 1.25 16 5.3 13 9.2 11 7.07 CAD Cart
SNHS-M8-20-HTF M8 1.25 20 5.3 13 9.2 13 7.07 CAD Cart
SNHS-M8-25-HTF M8 1.25 25 5.3 13 9.2 14 7.37 CAD Cart
SNHS-M8-30-HTF M8 1.25 30 5.3 13 9.2 16 7.55 CAD Cart
SNHS-M8-35-HTF M8 1.25 35 5.3 13 9.2 18 7.62 CAD Cart

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Dimension Drawing

SNHS-HTFHex Head Screws - PTFE Coating for Head寸法図

Related Services

Material/Finish

SNHS-HTF
Main Body SUSXM7
(Equivalent to SUS304)*1
PTFE Coating (Head Only)

*1: The baking finish during coating changes the color of the screw thread.


Application

FPD production equipment, semiconductor fabrication wet processes,
printed circuit board etching devices, metallic surface treatment
equipment and facilities, cleaning equipment, and chemical plants

Characteristics

  • Only the screw head is coated with PTFE (Polytetrafluoroethylene). This increases the chemical resistance of the screw head.
  • Chemical Resistance of PTFE ⇒Chemical Resistance of Chemical Resistance Screws
  • To increase chemical resistance, the coating membrane is thickened (to approximately 50 μm). The screw thread is not coated, so thread precision is not affected.
  • Use with SWS-HTF Sealing Washer (PTFE coating) to prevent chemical liquids from moving from the bearing surface to the thread. SWS-HTF

Precautions for Use

  • Friction during tightening may remove the coating. Take care not to tighten too much. Apply the recommendation torque or lower for tightening.
  • For tightening, use a socket wrench with a hexagonal socket.

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