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): 3/8"
- Thread Pitch: 16
- Diameter (Dimension): 0.375"
- Length (Nominal): 3"
- Thread Length (Nominal): 3"
- Across Flats (Basic): 9/16"
- Across Flats (Minimum): 0.552"
- Across Flats (Maximum): 0.562"
- Head Height, Overall: 0.39"
- Flange Diameter: 0.81"
- 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
POS BO044-3816X3-000250
Flange Diameter 0.81"
Drive Style External Hex Drive
Head Style Hex Flange Head
Across Flats (Basic) 9/16"
Hardness Rating Rockwell C40 / Core C26-C34
Brand Aspen Fasteners
Product Class Externally Threaded Fasteners
Coating Zinc Plated
Origin Origin Undefined
Thread Direction Right-Hand Thread
System of Measurement Inch
Across Flats (Minimum) 0.552"
Thread Length Full Thread
Diameter (Dimension) 0.375"
Coating Color Clear
Across Flats (Maximum) 0.562"
Length (Nominal) 3"
Material Steel
Head Height, Overall 0.39"
Material Processes Case Hardened
Diameter (Nominal) 3/8"
Head Style Detail Locking Serrations
Thread Length (Nominal) 3"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO044-3816X3
Thread Pitch 16
Category Flange Screws
Order Machine Thread Fasteners
