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): 5/16"
- Thread Pitch: 18
- Diameter (Dimension): 0.3125"
- Diameter (Minimum): 0.3065"
- Diameter (Maximum): 0.3125"
- Length (Nominal): 1-1/2"
- Thread Length (Nominal): 0.875"
- Across Flats (Basic): 1/2"
- Across Flats (Minimum): 0.489"
- Across Flats (Maximum): 0.500"
- Head Height, Overall: 0.2031"
- Head Height, Overall (Minimum): 0.195"
- Head Height, Overall (Maximum): 0.211"
- 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
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO016-51618X112
Head Style Hex Head
Category Cap Screws
Brand Aspen Fasteners
Thread Pitch 18
Head Height, Overall (Minimum) 0.195"
System of Measurement Inch
Length (Nominal) 1-1/2"
Drive Style External Hex Drive
Pitch UNC Coarse Thread
Diameter (Minimum) 0.3065"
Across Flats (Minimum) 0.489"
Thread Direction Right-Hand Thread
Coating Zinc Plated
Across Flats (Basic) 1/2"
Head Height, Overall 0.2031"
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO016-51618X112.zip
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Diameter (Nominal) 5/16"
Material Grade Grade 5
Head Height, Overall (Maximum) 0.211"
Material Steel
Across Flats (Maximum) 0.500"
Standards and Specifications ASME B18.2.1 and SAE J429
Head Style Detail Washer Face
Thread Length (Nominal) 0.875"
Point Chamfered Point
Product Class Externally Threaded Fasteners
POS BO016-51618X112-001000
Coating Color Clear
Diameter (Dimension) 0.3125"
Diameter (Maximum) 0.3125"
Order Machine Thread Fasteners
Origin Made in U.S.A.
