Dimension Drawing
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-M4-12-HTF | M4 | 0.7 | 12 | 2.8 | 7 | 1.1 | 1.9 | 6.11 | CAD | Cart |
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Material/Finish
| SNHS-HTF | |
|---|---|
| Main Body | SUSXM7 (Equivalent to SUS304)＊1 PFA 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 PFA (Perfluoroalkoxy Alkane). This increases the chemical resistance of the screw head.
- Chemical Resistance of PFA ⇒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 ( 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.
