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): 4"
- 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
Head Height, Overall (Maximum) 0.371"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO020-91612X4
Category Cap Screws
Length (Nominal) 4"
Head Style Detail Washer Face
Across Flats (Maximum) 0.812"
Thread Pitch 12
Across Flats (Minimum) 0.798"
Coating Zinc Plated
Diameter (Nominal) 9/16"
Origin Made in U.S.A.
Pitch UNC Coarse Thread
Head Style Hex Head
Head Height, Overall 0.3594"
Head Height, Overall (Minimum) 0.348"
Brand Aspen Fasteners
Product Class Externally Threaded Fasteners
Diameter (Minimum) 0.5545"
Material Grade Grade 8
Drive Style External Hex Drive
Across Flats (Basic) 13/16"
Standards and Specifications ASME B18.2.1 and SAE J429
Diameter (Dimension) 0.5625"
POS BO020-91612X4-000100
Diameter (Maximum) 0.5625"
Coating Color Yellow
Point Chamfered Point
Order Machine Thread Fasteners
Thread Length (Nominal) 1.375"
System of Measurement Inch
Head Markings Six radial lines 60 degrees apart and manufacturer ID
Material Steel
Thread Direction Right-Hand Thread
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO020-91612X4.zip
