- Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
- The heads of grade 8 steel fasteners are typically marked with 6 raised radial lines.
- The washer face under the head provides a precision bearing surface.
- Grade 8 steel fasteners have a minimum tensile strength of 150,000 pounds per square inch.
- The chamfered point improves engagement with a nut or pre-tapped hole.
DIMENSIONAL ATTRIBUTES- Diameter (Nominal): 1-1/4"
- Thread Pitch: 7
- Diameter (Dimension): 1.25"
- Diameter (Minimum): 1.239"
- Diameter (Maximum): 1.250"
- Length (Nominal): 8-1/2"
- Thread Length (Nominal): 3"
- 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"
PRODUCT ATTRIBUTES- Category: Cap Screws
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Head
- Head Style Detail: Washer Face
- Head Markings: Six radial lines 60 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 8
- Coating: Zinc Plated
- Coating Color: Yellow
- Origin: Made in U.S.A.
- Standards and Specifications: ASME B18.2.1 and SAE J429
Product UPC Code:
698435021808
- Across Flats (Minimum):
- 1.812"
- Coating Color:
- Yellow
- Across Flats (Maximum):
- 1.875"
- Point:
- Chamfered Point
- Pitch:
- UNC Coarse Thread
- Head Height, Overall (Maximum):
- 0.813"
- Origin:
- Made in U.S.A.
- Material Grade:
- Grade 8
- Drive Style:
- External Hex Drive
- Product Class:
- Externally Threaded Fasteners
- Head Style Detail:
- Washer Face
- Shop by Material:
- Steel
- Diameter (Maximum):
- 1.250"
- Diameter (Minimum):
- 1.239"
- Diameter (Dimension):
- 1.25"
- Across Flats (Basic):
- 1-7/8"
- Brand:
- Aspen Fasteners
- cad_3d_file_url:
- https://3d.aspenfasteners.com/assets/obj/BO020-1147X812.zip
- Head Height, Overall (Minimum):
- 0.749"
- Head Markings:
- Six radial lines 60 degrees apart and manufacturer ID
- Shop by System of Measurement:
- Inch
- specifications_document_url:
- https://www.aspenfasteners.com/content/2D_PDF/product80/BO020-1147X812.PDF
- Standards and Specifications:
- ASME B18.2.1 and SAE J429
- System of Measurement:
- Inch
- Thread Direction:
- Right-Hand Thread
- Thread Length (Nominal):
- 3"
- Head Style:
- Hex Head
- Category:
- Cap Screws
- Material:
- Steel
- Order:
- Machine Thread Fasteners
- Head Height, Overall:
- 25/32"
- Thread Pitch:
- 7
- Diameter (Nominal):
- 1-1/4"
- Length (Nominal):
- 8-1/2"
- cad_3d_viewer_url:
- https://3d.aspenfasteners.com/viewer/?cad_model=obj/BO020-1147X812
- Coating:
- Zinc Plated
- POS:
- BO020-1147X812-000010
