Description
90402A104 Steel Pan Head Screws with External-Tooth Lock Washer, The washer on these screws has sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached, 4-40 Thread, 3/16″ Long
Thread Size: 4-40
Length: 3/16″
Threading: Fully Threaded
Head Diameter: 0.219″
Head Height: 0.080″
Washer:
OD: 0.230″
Thickness: 0.018″
Drive Style: Phillips
Drive Size: No. 1
Material: Zinc-Plated Steel
Hardness: Rockwell B69
Tensile Strength: 60,000 psi
Screw Size Decimal Equivalent: 0.112″
Thread Type: UNC
Thread Spacing: Coarse
Thread Fit: Class 2A
Thread Direction: Right Hand
Head Type: Rounded
Rounded Head Style: Pan
Rounded Head Profile: Standard
Screw Features: With Washer
Locking Type: Lock Washer
Washer Type: External-Tooth Lock
Washer Material: Zinc-Plated Steel
System of Measurement: Inch
Specifications Met: ASME B18.13
RoHS: RoHS 3 (2015/863/EU) Compliant
Manufacturer: Electronic Components
MFG Part #: 90402A104
