Product Description
- Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
- The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines.
- The washer face under the head provides a precision bearing surface.
- Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch.
- The chamfered point improves engagement with a nut or pre-tapped hole.
- Diameter (Nominal): 1/4"
- Thread Pitch: 20
- Diameter (Dimension): 0.25"
- Diameter (Minimum): 0.245"
- Diameter (Maximum): 0.250"
- Length (Nominal): 1-3/4"
- Thread Length (Nominal): 0.75"
- Across Flats (Basic): 7/16"
- Across Flats (Minimum): 0.428"
- Across Flats (Maximum): 0.438"
- Head Height, Overall: 0.1563"
- Head Height, Overall (Minimum): 0.150"
- Head Height, Overall (Maximum): 0.163"
- Category: Cap Screws
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Head
- Head Style Detail: Washer Face
- Head Markings: Three radial lines 120 degrees apart and manufacturer ID
- Drive Style: External Hex Drive
- Pitch: UNC Coarse Thread
- Thread Direction: Right-Hand Thread
- Point: Chamfered Point
- Material: Steel
- Material Grade: Grade 5
- Coating: Zinc Plated
- Coating Color: Clear
- Origin: Made in U.S.A.
- Standards and Specifications: ASME B18.2.1 and SAE J429
Product Videos
Custom Field
Standards and Specifications ASME B18.2.1 and SAE J429
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-1420X134
Origin Made in U.S.A.
System of Measurement Inch
Across Flats (Minimum) 0.428"
Length (Nominal) 1-3/4"
Across Flats (Basic) 7/16"
Product Class Externally Threaded Fasteners
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO016-1420X134.zip
Across Flats (Maximum) 0.438"
Coating Zinc Plated
Head Height, Overall (Maximum) 0.163"
POS BO016-1420X134-001400
Order Machine Thread Fasteners
Head Style Detail Washer Face
Material Grade Grade 5
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Thread Length (Nominal) 0.75"
Diameter (Minimum) 0.245"
Point Chamfered Point
Thread Direction Right-Hand Thread
Head Height, Overall (Minimum) 0.150"
Head Style Hex Head
Pitch UNC Coarse Thread
Head Height, Overall 0.1563"
Category Cap Screws
Diameter (Maximum) 0.250"
Thread Pitch 20
Brand Aspen Fasteners
Diameter (Dimension) 0.25"
Material Steel
Coating Color Clear
Drive Style External Hex Drive
Diameter (Nominal) 1/4"
