Product Description
- Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
- The heads of grade 8 steel fasteners are typically marked with 6 raised radial lines.
- The washer face under the head provides a precision bearing surface.
- Grade 8 steel fasteners have a minimum tensile strength of 150,000 pounds per square inch.
- The chamfered point improves engagement with a nut or pre-tapped hole.
- In general, fine thread fasteners are about 10% stronger than coarse threads under static loading.
- Diameter (Nominal): 7/16"
- Thread Pitch: 20
- Diameter (Dimension): 0.4375"
- Diameter (Minimum): 0.4305"
- Diameter (Maximum): 0.4375"
- Length (Nominal): 3-1/4"
- Thread Length (Nominal): 1.125"
- Across Flats (Basic): 5/8"
- Across Flats (Minimum): 0.612"
- Across Flats (Maximum): 0.625"
- Head Height, Overall: 0.2813"
- Head Height, Overall (Minimum): 0.272"
- Head Height, Overall (Maximum): 0.291"
- Category: Cap Screws
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Head
- Head Style Detail: Washer Face
- Head Markings: Six radial lines 60 degrees apart and manufacturer ID
- Drive Style: External Hex Drive
- Pitch: UNF Fine Thread
- Thread Direction: Right-Hand Thread
- Point: Chamfered Point
- Material: Steel
- Material Grade: Grade 8
- Coating: Zinc Plated
- Coating Color: Yellow
- Origin: Made in U.S.A.
- Standards and Specifications: ASME B18.2.1 and SAE J429
Product Videos
Custom Field
Diameter (Minimum) 0.4305"
Thread Length (Nominal) 1.125"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO022-71620X314
Head Height, Overall (Maximum) 0.291"
Material Steel
Material Grade Grade 8
Thread Pitch 20
Origin Made in U.S.A.
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO022-71620X314.zip
Product Class Externally Threaded Fasteners
Across Flats (Basic) 5/8"
Across Flats (Minimum) 0.612"
Thread Direction Right-Hand Thread
Diameter (Nominal) 7/16"
Head Style Hex Head
POS BO022-71620X314-000250
Head Height, Overall 0.2813"
Across Flats (Maximum) 0.625"
Drive Style External Hex Drive
Point Chamfered Point
Order Machine Thread Fasteners
System of Measurement Inch
Length (Nominal) 3-1/4"
Coating Zinc Plated
Coating Color Yellow
Diameter (Maximum) 0.4375"
Head Markings Six radial lines 60 degrees apart and manufacturer ID
Head Style Detail Washer Face
Pitch UNF Fine Thread
Diameter (Dimension) 0.4375"
Head Height, Overall (Minimum) 0.272"
Category Cap Screws
Standards and Specifications ASME B18.2.1 and SAE J429
Brand Aspen Fasteners
