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"
- Thread Pitch: 8
- Diameter (Dimension): 1"
- Diameter (Minimum): 0.990"
- Diameter (Maximum): 1.000"
- Length (Nominal): 5-1/2"
- Thread Length (Nominal): 2.25"
- Across Flats (Basic): 1-1/2"
- Across Flats (Minimum): 1.469"
- Across Flats (Maximum): 1.500"
- Head Height, Overall: 39/64"
- Head Height, Overall (Minimum): 0.591"
- Head Height, Overall (Maximum): 0.627"
- 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
Pitch UNC Coarse Thread
Thread Length (Nominal) 2.25"
Material Steel
Diameter (Nominal) 1"
Diameter (Maximum) 1.000"
Across Flats (Minimum) 1.469"
System of Measurement Inch
Drive Style External Hex Drive
Length (Nominal) 5-1/2"
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO016-18X512.zip
Head Style Hex Head
Head Height, Overall (Minimum) 0.591"
Material Grade Grade 5
Diameter (Dimension) 1"
Diameter (Minimum) 0.990"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-18X512
Order Machine Thread Fasteners
Head Height, Overall (Maximum) 0.627"
Head Style Detail Washer Face
Head Height, Overall 39/64"
Origin Made in U.S.A.
Brand Aspen Fasteners
Coating Zinc Plated
POS BO016-18X512-000025
Across Flats (Maximum) 1.500"
Thread Pitch 8
Point Chamfered Point
Product Class Externally Threaded Fasteners
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Thread Direction Right-Hand Thread
Coating Color Clear
Standards and Specifications ASME B18.2.1 and SAE J429
Across Flats (Basic) 1-1/2"
Category Cap Screws