#4-40 X 1/4″ SEMS Split Lock Washer Machine Screws, Pan Phillips Drive, Steel, Zinc Plated and Baked

Description

• Machine screws are designed for applications with a pre-tapped hole or mated to a threaded nut.
• SEMS screws come pre-assembled with permanently installed free-spinning lock washer.

DIMENSIONAL ATTRIBUTES

• Diameter (Nominal): 4
• Thread Pitch: 40
• Diameter (Dimension): 0.112″
• Length (Nominal): 1/4″
• Thread Length (Nominal): 0.250″
• Inside Diameter (Minimum): 0.101″
• Inside Diameter (Maximum): 0.106″
• Outside Diameter (Minimum): 0.211″
• Outside Diameter (Maximum): 0.222″
• Thickness (Nominal): 0.034″
• Radial Width: 0.055″
• Drive Recess Size: 1
• Drive Recess Width: 0.115″
• Drive Recess Depth (Minimum): 0.053″
• Drive Recess Depth (Maximum): 0.071″
• Head Diameter (Minimum): 0.205″
• Head Diameter (Maximum): 0.219″
• Head Height, Overall (Minimum): 0.070″
• Head Height, Overall (Maximum): 0.080″
• Head Radius: 0.010″

PRODUCT ATTRIBUTES

• Category: Machine Screws
• System of Measurement: Inch
• Brand: Aspen Fasteners
• Form and Design: SEMS Screws Pre-Assembled with a Captive Lock Washer
• Head Style: Pan Head
• Head Style Detail: Free-Spinning Split Lock Washer
• Drive Style: Cruciform Recess Drive
• Drive Detail: Phillips Type H
• Thread Length: Full Thread
• Thread Direction: Right-Hand Thread
• Material: Steel
• Coating: Zinc Plated and Baked
• Coating Color: Clear
• Origin: Origin Undefined
• Standards and Specifications: ASME B18.13a and SAE J82