Product Description
- Heavy hex structural bolts are designed to withstand the load of a steel-to-steel connection.
- Commonly used in structural steel joint in construction and building applications.
- The washer face under the head provides a precision bearing surface.
- The chamfered point improves engagement with a nut or pre-tapped hole.
- Diameter (Nominal): 1-1/4"
- Thread Pitch: 7
- Diameter (Dimension): 1.25"
- Diameter (Minimum): 1.223"
- Diameter (Maximum): 1.277"
- Length (Nominal): 4-1/2"
- Length (Minimum): 4.25"
- Length (Maximum): 4.5"
- Thread Length (Nominal): 2"
- Across Flats (Basic): 2"
- Across Flats (Minimum): 1.938"
- Across Flats (Maximum): 2.000"
- Head Height, Overall: 25/32"
- Head Height, Overall (Minimum): 0.749"
- Head Height, Overall (Maximum): 0.813"
- Category: Hex Bolts, Heavy Structural
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Head
- Head Style Detail: Washer Face
- Drive Style: External Hex Drive
- Pitch: Coarse Thread
- Thread Length: Part Thread
- Thread Direction: Right-Hand Thread
- Point: Chamfered Point
- Material: Steel
- Material Grade: ASTM A325 Type 1
- Material Processes: Heat Treated
- Coating: Uncoated
- Hardness Rating: Rockwell C24-C35
- Origin: Made in U.S.A.
- Standards and Specifications: ASME B18.2.6
Product Videos
Custom Field
Material Processes Heat Treated
Across Flats (Maximum) 2.000"
Thread Length (Nominal) 2"
Coating Uncoated
Thread Direction Right-Hand Thread
Diameter (Minimum) 1.223"
Brand Aspen Fasteners
POS BO040-1147X412-000090
Material Grade ASTM A325 Type 1
Head Height, Overall (Minimum) 0.749"
Length (Minimum) 4.25"
Order Machine Thread Fasteners
Head Style Hex Head
Hardness Rating Rockwell C24-C35
Diameter (Maximum) 1.277"
Head Height, Overall 25/32"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO040-1147X412
Length (Maximum) 4.5"
Across Flats (Basic) 2"
Point Chamfered Point
Diameter (Nominal) 1-1/4"
Length (Nominal) 4-1/2"
Category Hex Bolts, Heavy Structural
Standards and Specifications ASME B18.2.6
Thread Pitch 7
Across Flats (Minimum) 1.938"
Head Height, Overall (Maximum) 0.813"
Head Style Detail Washer Face
Product Class Externally Threaded Fasteners
Origin Made in U.S.A.
System of Measurement Inch
Diameter (Dimension) 1.25"
Pitch Coarse Thread
Thread Length Part Thread
Drive Style External Hex Drive
Material Steel
