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.
- Diameter (Nominal): 1/4"
- Thread Pitch: 28
- Diameter (Dimension): 0.25"
- Length (Nominal): 3/4"
- 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 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 Processes: Case Hardened
- Coating: Zinc Plated
- Coating Color: Clear
- Hardness Rating: Rockwell C40 / Core C26-C34
- Origin: Origin Undefined
Product Videos
Custom Field
Diameter (Dimension) 0.25"
Head Style Detail Locking Serrations
Length (Nominal) 3/4"
Thread Length (Nominal) 0.75"
Diameter (Nominal) 1/4"
Across Flats (Maximum) 0.375"
Category Flange Screws
Product Class Externally Threaded Fasteners
Thread Pitch 28
Coating Zinc Plated
Thread Length Full Thread
System of Measurement Inch
Material Processes Case Hardened
Hardness Rating Rockwell C40 / Core C26-C34
Across Flats (Basic) 3/8"
Origin Origin Undefined
Order Machine Thread Fasteners
POS BO044-1428X34-003000
Thread Direction Right-Hand Thread
Brand Aspen Fasteners
Across Flats (Minimum) 0.367"
Head Height, Overall 0.28"
Drive Style External Hex Drive
Material Steel
Head Style Hex Flange Head
Coating Color Clear
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO044-1428X34
Flange Diameter 0.565"
