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): 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"
- 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
Length (Nominal) 8-1/2"
Diameter (Dimension) 1.25"
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Head Height, Overall (Maximum) 0.813"
Product Class Externally Threaded Fasteners
Thread Direction Right-Hand Thread
Across Flats (Basic) 1-7/8"
Thread Pitch 7
Head Height, Overall 25/32"
Diameter (Nominal) 1-1/4"
Across Flats (Minimum) 1.812"
Head Style Hex Head
Brand Aspen Fasteners
Pitch UNC Coarse Thread
Diameter (Maximum) 1.250"
Diameter (Minimum) 1.239"
System of Measurement Inch
Head Height, Overall (Minimum) 0.749"
Head Style Detail Washer Face
Coating Zinc Plated
Order Machine Thread Fasteners
Material Grade Grade 5
Category Cap Screws
Across Flats (Maximum) 1.875"
Coating Color Clear
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-1147X812
Origin Made in U.S.A.
Material Steel
Drive Style External Hex Drive
Standards and Specifications ASME B18.2.1 and SAE J429
POS BO016-1147X812-000010
Point Chamfered Point
Thread Length (Nominal) 3"