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): 1"
- Thread Length (Nominal): 1"
- 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
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO044-1428X1
POS BO044-1428X1-002500
System of Measurement Inch
Thread Direction Right-Hand Thread
Origin Origin Undefined
Across Flats (Maximum) 0.375"
Coating Color Clear
Order Machine Thread Fasteners
Brand Aspen Fasteners
Product Class Externally Threaded Fasteners
Coating Zinc Plated
Thread Length (Nominal) 1"
Thread Pitch 28
Diameter (Dimension) 0.25"
Flange Diameter 0.565"
Material Processes Case Hardened
Head Style Detail Locking Serrations
Diameter (Nominal) 1/4"
Thread Length Full Thread
Across Flats (Basic) 3/8"
Hardness Rating Rockwell C40 / Core C26-C34
Category Flange Screws
Head Style Hex Flange Head
Drive Style External Hex Drive
Length (Nominal) 1"
Material Steel
Head Height, Overall 0.28"
Across Flats (Minimum) 0.367"
