Product Description
- 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.
- Diameter (Nominal): 1-1/8"
- Thread Pitch: 7
- Diameter (Dimension): 1.125"
- Diameter (Minimum): 1.114"
- Diameter (Maximum): 1.125"
- Length (Nominal): 4"
- Thread Length (Nominal): 2.5"
- Across Flats (Basic): 1-11/16"
- Across Flats (Minimum): 1.631"
- Across Flats (Maximum): 1.688"
- Head Height, Overall: 11/16"
- Head Height, Overall (Minimum): 0.658"
- Head Height, Overall (Maximum): 0.718"
- 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 Videos
Custom Field
Diameter (Dimension) 1.125"
Head Style Hex Head
Pitch UNC Coarse Thread
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO020-1187X4.zip
POS BO020-1187X4-000025
System of Measurement Inch
Coating Zinc Plated
Thread Direction Right-Hand Thread
Head Markings Six radial lines 60 degrees apart and manufacturer ID
Origin Made in U.S.A.
Across Flats (Maximum) 1.688"
Material Grade Grade 8
Drive Style External Hex Drive
Head Height, Overall 11/16"
Diameter (Nominal) 1-1/8"
Brand Aspen Fasteners
Diameter (Maximum) 1.125"
Length (Nominal) 4"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO020-1187X4
Diameter (Minimum) 1.114"
Across Flats (Minimum) 1.631"
Category Cap Screws
Order Machine Thread Fasteners
Across Flats (Basic) 1-11/16"
Product Class Externally Threaded Fasteners
Point Chamfered Point
Head Style Detail Washer Face
Thread Length (Nominal) 2.5"
Coating Color Yellow
Standards and Specifications ASME B18.2.1 and SAE J429
Material Steel
Head Height, Overall (Minimum) 0.658"
Thread Pitch 7
Head Height, Overall (Maximum) 0.718"
