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.
- Diameter (Nominal): 9/16"
- Thread Pitch: 12
- Diameter (Dimension): 0.5625"
- Diameter (Minimum): 0.5545"
- Diameter (Maximum): 0.5625"
- Length (Nominal): 3"
- Thread Length (Nominal): 1.375"
- Across Flats (Basic): 13/16"
- Across Flats (Minimum): 0.798"
- Across Flats (Maximum): 0.812"
- Head Height, Overall: 0.3594"
- Head Height, Overall (Minimum): 0.348"
- Head Height, Overall (Maximum): 0.371"
- 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: UNC Coarse 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
Material Steel
Head Style Detail Washer Face
Point Chamfered Point
Brand Aspen Fasteners
Diameter (Nominal) 9/16"
Head Height, Overall (Maximum) 0.371"
Diameter (Dimension) 0.5625"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO020-91612X3
Product Class Externally Threaded Fasteners
Coating Color Yellow
Head Markings Six radial lines 60 degrees apart and manufacturer ID
Pitch UNC Coarse Thread
Thread Length (Nominal) 1.375"
Drive Style External Hex Drive
Across Flats (Minimum) 0.798"
Coating Zinc Plated
Order Machine Thread Fasteners
POS BO020-91612X3-000150
Material Grade Grade 8
Diameter (Maximum) 0.5625"
Across Flats (Maximum) 0.812"
Head Height, Overall 0.3594"
Thread Direction Right-Hand Thread
Head Style Hex Head
Diameter (Minimum) 0.5545"
Head Height, Overall (Minimum) 0.348"
System of Measurement Inch
Length (Nominal) 3"
Category Cap Screws
Thread Pitch 12
Across Flats (Basic) 13/16"
Origin Made in U.S.A.
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO020-91612X3.zip
Standards and Specifications ASME B18.2.1 and SAE J429