Product Description
- Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
- The heads of grade 5 steel fasteners are typically marked with 3 raised radial lines.
- The washer face under the head provides a precision bearing surface.
- Grade 5 steel fasteners have a minimum tensile strength of 105,000 pounds per square inch.
- 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): 1.239"
- Diameter (Maximum): 1.250"
- Length (Nominal): 3-3/4"
- Thread Length (Nominal): 2.75"
- Across Flats (Basic): 1-7/8"
- Across Flats (Minimum): 1.812"
- Across Flats (Maximum): 1.875"
- Head Height, Overall: 25/32"
- Head Height, Overall (Minimum): 0.749"
- Head Height, Overall (Maximum): 0.813"
- Category: Cap Screws
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Head
- Head Style Detail: Washer Face
- Head Markings: Three radial lines 120 degrees apart and manufacturer ID
- Drive Style: External Hex Drive
- Pitch: UNC Coarse Thread
- Thread Direction: Right-Hand Thread
- Point: Chamfered Point
- Material: Steel
- Material Grade: Grade 5
- Coating: Zinc Plated
- Coating Color: Clear
- Origin: Made in U.S.A.
- Standards and Specifications: ASME B18.2.1 and SAE J429
Product Videos
Custom Field
Thread Direction Right-Hand Thread
Diameter (Dimension) 1.25"
Brand Aspen Fasteners
Head Style Hex Head
Material Steel
Origin Made in U.S.A.
Head Height, Overall (Minimum) 0.749"
Coating Color Clear
Across Flats (Basic) 1-7/8"
Standards and Specifications ASME B18.2.1 and SAE J429
Length (Nominal) 3-3/4"
Across Flats (Maximum) 1.875"
System of Measurement Inch
Category Cap Screws
Thread Length (Nominal) 2.75"
Head Style Detail Washer Face
Material Grade Grade 5
Diameter (Minimum) 1.239"
Diameter (Nominal) 1-1/4"
Product Class Externally Threaded Fasteners
Drive Style External Hex Drive
Thread Pitch 7
Head Markings Three radial lines 120 degrees apart and manufacturer ID
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-1147X334
Diameter (Maximum) 1.250"
POS BO016-1147X334-000020
Head Height, Overall (Maximum) 0.813"
Pitch UNC Coarse Thread
Point Chamfered Point
Order Machine Thread Fasteners
Across Flats (Minimum) 1.812"
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO016-1147X334.zip
Coating Zinc Plated
Head Height, Overall 25/32"
