Product Description
- Sometimes called Frame Bolts as these bolts are commonly used on truck frames.
- Also known as hex flange screws or hex washer bolts.
- Flange under the head acts like a washer to increase the bearing surface and distribute the load.
- The heads of grade 8 steel fasteners are typically marked with 6 raised radial lines.
- Grade 8 steel fasteners have a minimum tensile strength of 150,000 pounds per square inch.
- Diameter (Nominal): 5/16"
- Thread Pitch: 18
- Diameter (Dimension): 0.3125"
- Length (Nominal): 1-1/4"
- Thread Length (Nominal): 0.875"
- 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 Bolts
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Indented Flange Head
- Drive Style: External Hex Drive
- Thread Length: Part Thread
- Thread Direction: Right-Hand Thread
- Material: Steel
- Material Grade: Grade 8
- Coating: Phosphate Coated and Oiled
- Coating Color: Black
- Origin: Origin Undefined
- Standards and Specifications: IFI-111, ASME B18.2.1 and SAE J429
Product Videos
Custom Field
Drive Style External Hex Drive
Origin Origin Undefined
Thread Direction Right-Hand Thread
Order Machine Thread Fasteners
Flange Diameter 0.706"
Material Grade Grade 8
Thread Length Part Thread
Category Flange Bolts
Coating Color Black
Head Height, Overall 0.32"
Brand Aspen Fasteners
Across Flats (Minimum) 0.491"
Across Flats (Maximum) 0.5"
Diameter (Dimension) 0.3125"
Product Class Externally Threaded Fasteners
Material Steel
Length (Nominal) 1-1/4"
Thread Pitch 18
Head Style Hex Indented Flange Head
System of Measurement Inch
Thread Length (Nominal) 0.875"
Diameter (Nominal) 5/16"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO027-51618X114
Standards and Specifications IFI-111, ASME B18.2.1 and SAE J429
POS BO027-51618X114-001200
Across Flats (Basic) 1/2"
Coating Phosphate Coated and Oiled
