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The Hypertherm 75571 is a precision-machined stainless steel machine screw designed as the primary anchoring hardware for the Cap-Off Sensor Switch assembly within plasma cutting torch heads. It is engineered to maintain structural integrity and electromagnetic shielding in high-heat, high-frequency industrial environments.
Features
Anti-Galling Precision Threading: Optimized thread flanks eliminate friction welding when mated to metallic torch housings.
Low-Profile Pan Head: Provides vertical clearance for concentric torch block layers and internal wiring.
Non-Magnetic Composition: Immune to magnetic induction loops from high current densities (up to 200A).
Corrosion Resistance: Passive chromium oxide film prevents degradation from moisture and gas-borne contaminants.
Torque Control Transmission: Deep cross-recess geometry prevents driver cam-out during maintenance.
Thermal Stability: Operates without metallurgical deformation or torque loss in high-heat zones.
Specifications
Manufacturer: Hypertherm Inc.
Part Number: 75571 (075571)
Fastener Classification: Machine Screw (MSCR)
Thread Size: #2-56 UNF
Thread Class: 2A (External)
Length: 5/32 in (0.15625 in / 3.968 mm)
Drive Type: Phillips (PH) Cross-Recess
Phillips Driver Size: #1
Head Style: Pan Head
Material: Austenitic Stainless Steel (Grade 302/304 or 316)
Major Diameter: 0.0813 in - 0.0860 in (2.065 mm - 2.184 mm)
Pitch Diameter: 0.0717 in - 0.0744 in (1.821 mm - 1.890 mm)
Minor Diameter: 0.0641 in (1.628 mm)
Threads Per Inch (TPI): 56
Thread Pitch: 0.01785 in (0.453 mm)
Head Diameter: 0.155 in - 0.167 in (3.937 mm - 4.241 mm)
Head Height: 0.053 in - 0.062 in (1.346 mm - 1.574 mm)
Phillips Recess Penetration Depth: 0.035 in - 0.052 in (0.889 mm - 1.320 mm)
