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): 1/4"
- Thread Pitch: 20
- Diameter (Dimension): 0.25"
- Length (Nominal): 2-1/2"
- Thread Length (Nominal): 0.75"
- Across Flats (Basic): 3/8"
- Across Flats (Minimum): 0.367"
- Across Flats (Maximum): 0.375"
- Head Height, Overall: 0.28"
- Flange Diameter: 0.565"
- 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
Head Height, Overall 0.28"
System of Measurement Inch
Across Flats (Maximum) 0.375"
Drive Style External Hex Drive
Origin Origin Undefined
Flange Diameter 0.565"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO027-1420X212
Coating Color Black
Across Flats (Basic) 3/8"
Category Flange Bolts
Product Class Externally Threaded Fasteners
Thread Length Part Thread
Thread Direction Right-Hand Thread
Diameter (Nominal) 1/4"
Standards and Specifications IFI-111, ASME B18.2.1 and SAE J429
Diameter (Dimension) 0.25"
Length (Nominal) 2-1/2"
Thread Length (Nominal) 0.75"
Coating Phosphate Coated and Oiled
Material Steel
Order Machine Thread Fasteners
Head Style Hex Indented Flange Head
POS BO027-1420X212-000500
Thread Pitch 20
Across Flats (Minimum) 0.367"
Material Grade Grade 8
Brand Aspen Fasteners
