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): 7/8"
- Thread Pitch: 9
- Diameter (Dimension): 0.875"
- Diameter (Minimum): 0.866"
- Diameter (Maximum): 0.875"
- Length (Nominal): 4"
- Thread Length (Nominal): 2"
- Across Flats (Basic): 1-5/16"
- Across Flats (Minimum): 1.285"
- Across Flats (Maximum): 1.312"
- Head Height, Overall: 35/64"
- Head Height, Overall (Minimum): 0.531"
- Head Height, Overall (Maximum): 0.563"
- 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
Head Style Detail Washer Face
Order Machine Thread Fasteners
Material Grade Grade 5
POS BO016-789X4-000045
Coating Zinc Plated
Category Cap Screws
Diameter (Maximum) 0.875"
Pitch UNC Coarse Thread
Head Height, Overall 35/64"
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO016-789X4.zip
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-789X4
Product Class Externally Threaded Fasteners
Thread Pitch 9
Length (Nominal) 4"
Across Flats (Minimum) 1.285"
Thread Length (Nominal) 2"
Head Style Hex Head
Brand Aspen Fasteners
Head Height, Overall (Maximum) 0.563"
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Diameter (Minimum) 0.866"
Material Steel
Coating Color Clear
Diameter (Nominal) 7/8"
Standards and Specifications ASME B18.2.1 and SAE J429
Point Chamfered Point
Head Height, Overall (Minimum) 0.531"
Origin Made in U.S.A.
Thread Direction Right-Hand Thread
Across Flats (Maximum) 1.312"
Across Flats (Basic) 1-5/16"
Diameter (Dimension) 0.875"
Drive Style External Hex Drive
System of Measurement Inch