Fastening screw 20225667

leak-proofingcylindrical headTorx

Description
Cylindrical-head sealing screws with an integrated O-ring designed to provide bidirectional protection against liquids, dust and contaminants while delivering a secure mechanical fastening. Suited for industrial applications such as enclosures, automotive assemblies and electrical equipment where sealing and resistance to vibration are required.

Key features

• Drive options: Torx, Phillips (cross), and slotted.
• Torx drive: positive engagement for efficient torque transfer with reduced axial pressure.
• Phillips drive: supports higher torque and eases removal after high tightening.
• Slotted drive: lower torque capacity; suitable for low-torque applications.
• Integrated O-ring: compressed between head and mating surface on assembly to ensure improved sealing against water, dust and contaminants.
• Material: Stainless steel 303, offering corrosion resistance with slight magnetism possible.
• Applications: Suitable for threaded and non-threaded holes in enclosures, automotive and electrical sectors; reduces loosening from vibration or movement.

Technical characteristics / specifications

• Material: Stainless steel 303
• Series: SRP0172, SRP0171, SRP0170
• Available drive types: Phillips, Torx, slotted
• Thread sizes (d1): M2, M2.5, M3, M4, M5, M6, M8, M10
• Body lengths (l1) (mm): 3.0, 4.0, 6.0, 8.0, 10.0, 12.0, 16.0, 20.0, 25.0, 30.0, 35.0, 40.0, 45.0, 50.0, 60.0
• Head diameters (d2 max) (mm): 4.0, 4.7, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 20.0
• Head heights (h1 max) (mm): 1.3, 1.5, 1.6, 1.8, 2.1, 2.4, 3.0, 3.1, 3.3, 3.6, 3.7, 4.6, 4.8, 6.0, 7.5
• Counterbore size d3 (±0.05) (mm): 2.35, 2.75, 3.6, 4.5, 5.6, 6.8, 8.5, 10.6

References / variants

• Example part numbers: 20224042 (cylindrical head Phillips M2.5 × 8.0), 20223991 (M2 × 4.0), 20224387 (M10 × 30.0).
• Available in multiple thread/length combinations; consult variant list for full options and stock availability.