Product Description
- Also known as hex flange bolts, frame bolts or hex washer bolts.
- Flange under the head acts like a washer to increase the bearing surface and distribute the load.
- Serrated teeth under the head bite into the mating surface as tightened to prevent loosening.
- The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines.
- Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch.
- Diameter (Nominal): 5/16"
- Thread Pitch: 18
- Diameter (Dimension): 0.3125"
- Length (Nominal): 2"
- Thread Length (Nominal): 2"
- Across Flats (Basic): 1/2"
- Across Flats (Minimum): 0.491"
- Across Flats (Maximum): 0.5"
- Head Height, Overall: 0.32"
- Flange Diameter: 0.706"
- Category: Flange Screws
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Flange Head
- Head Style Detail: Locking Serrations
- Drive Style: External Hex Drive
- Thread Length: Full Thread
- Thread Direction: Right-Hand Thread
- Material: Steel
- Material Grade: Grade 5
- Material Processes: Quenched and Tempered
- Coating: Zinc Plated
- Coating Color: Clear
- Hardness Rating: Rockwell C25-C34
- Origin: Origin Undefined
Product Videos
Custom Field
Material Grade Grade 5
POS BO028-51618X2X2-000750
Origin Origin Undefined
Order Machine Thread Fasteners
Flange Diameter 0.706"
Drive Style External Hex Drive
Thread Direction Right-Hand Thread
Thread Length Full Thread
Material Processes Quenched and Tempered
Material Steel
Length (Nominal) 2"
Across Flats (Basic) 1/2"
Category Flange Screws
Coating Zinc Plated
Thread Pitch 18
Across Flats (Minimum) 0.491"
Diameter (Nominal) 5/16"
Coating Color Clear
Hardness Rating Rockwell C25-C34
Thread Length (Nominal) 2"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO028-51618X2X2
System of Measurement Inch
Brand Aspen Fasteners
Head Style Hex Flange Head
Head Style Detail Locking Serrations
Head Height, Overall 0.32"
Product Class Externally Threaded Fasteners
Across Flats (Maximum) 0.5"
Diameter (Dimension) 0.3125"
