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): 9/16"
- Thread Pitch: 18
- Diameter (Dimension): 0.5625"
- Diameter (Minimum): 0.5545"
- Diameter (Maximum): 0.5625"
- Length (Nominal): 5"
- 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: 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
Head Style Detail Washer Face
Order Machine Thread Fasteners
System of Measurement Inch
Pitch UNF Fine Thread
Head Height, Overall (Maximum) 0.371"
Head Style Hex Head
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO022-91618X5
Standards and Specifications ASME B18.2.1 and SAE J429
Thread Length (Nominal) 1.375"
POS BO022-91618X5-000100
Length (Nominal) 5"
Head Markings Six radial lines 60 degrees apart and manufacturer ID
Category Cap Screws
Across Flats (Maximum) 0.812"
Thread Pitch 18
Material Steel
Product Class Externally Threaded Fasteners
Diameter (Dimension) 0.5625"
Diameter (Nominal) 9/16"
Material Grade Grade 8
Origin Made in U.S.A.
Thread Direction Right-Hand Thread
Head Height, Overall (Minimum) 0.348"
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO022-91618X5.zip
Coating Zinc Plated
Point Chamfered Point
Drive Style External Hex Drive
Across Flats (Minimum) 0.798"
Diameter (Maximum) 0.5625"
Brand Aspen Fasteners
Across Flats (Basic) 13/16"
Diameter (Minimum) 0.5545"
Head Height, Overall 0.3594"
Coating Color Yellow
