Product Description
- Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
- Grade 2 steel is a standard "industrial spec" low carbon grade of steel.
- The washer face under the head provides a precision bearing surface.
- Grade 2 steel fasteners have a minimum tensile strength of 60,000 pounds per square inch.
- The chamfered point improves engagement with a nut or pre-tapped hole.
- Diameter (Nominal): 5/16"
- Thread Pitch: 18
- Diameter (Dimension): 0.3125"
- Diameter (Minimum): 0.3065"
- Diameter (Maximum): 0.3125"
- Length (Nominal): 5/8"
- Thread Length (Nominal): 0.625"
- Across Flats (Basic): 1/2"
- Across Flats (Minimum): 0.489"
- Across Flats (Maximum): 0.500"
- Head Height, Overall: 0.2031"
- Head Height, Overall (Minimum): 0.195"
- Head Height, Overall (Maximum): 0.211"
- Category: Cap Screws
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Head
- Head Style Detail: Washer Face
- Drive Style: External Hex Drive
- Thread Direction: Right-Hand Thread
- Point: Chamfered Point
- Material: Steel
- Material Grade: Grade 2
- Coating: Oxidized
- Coating Color: Black
- Origin: Origin Undefined
- Standards and Specifications: ASME B18.2.1 and SAE J429
Product Videos
Custom Field
Order Machine Thread Fasteners
Diameter (Dimension) 0.3125"
Drive Style External Hex Drive
Length (Nominal) 5/8"
Material Grade Grade 2
Thread Pitch 18
Head Height, Overall (Maximum) 0.211"
Diameter (Nominal) 5/16"
Category Cap Screws
Thread Direction Right-Hand Thread
Origin Origin Undefined
Point Chamfered Point
Across Flats (Basic) 1/2"
Thread Length (Nominal) 0.625"
Head Height, Overall (Minimum) 0.195"
Diameter (Minimum) 0.3065"
Head Style Detail Washer Face
Product Class Externally Threaded Fasteners
Coating Color Black
Head Height, Overall 0.2031"
POS BO023-51618X58-001800
Across Flats (Minimum) 0.489"
Brand Aspen Fasteners
Coating Oxidized
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO023-51618X58.zip
Diameter (Maximum) 0.3125"
Across Flats (Maximum) 0.500"
Material Steel
System of Measurement Inch
Head Style Hex Head
Standards and Specifications ASME B18.2.1 and SAE J429
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO023-51618X58
