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): 6"
- 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
Across Flats (Maximum) 0.438"
Head Height, Overall (Minimum) 0.150"
Across Flats (Basic) 7/16"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-1420X6
POS BO016-1420X6-000350
Origin Made in U.S.A.
Thread Pitch 20
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Diameter (Maximum) 0.250"
Pitch UNC Coarse Thread
Order Machine Thread Fasteners
Category Cap Screws
Head Style Hex Head
System of Measurement Inch
Brand Aspen Fasteners
Diameter (Dimension) 0.25"
Material Steel
Diameter (Nominal) 1/4"
Thread Direction Right-Hand Thread
Drive Style External Hex Drive
Head Height, Overall (Maximum) 0.163"
Diameter (Minimum) 0.245"
Point Chamfered Point
Coating Color Clear
Across Flats (Minimum) 0.428"
Material Grade Grade 5
Coating Zinc Plated
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO016-1420X6.zip
Product Class Externally Threaded Fasteners
Thread Length (Nominal) 0.75"
Standards and Specifications ASME B18.2.1 and SAE J429
Head Height, Overall 0.1563"
Length (Nominal) 6"
Head Style Detail Washer Face
