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): 2-3/4"
- 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
Thread Pitch
Thread Pitch 18
Coating Color Clear
Category Cap Screws
Length (Nominal) 2-3/4"
Head Height, Overall (Maximum) 0.211"
Standards and Specifications ASME B18.2.1 and SAE J429
Diameter (Maximum) 0.3125"
Head Height, Overall 0.2031"
Origin Made in U.S.A.
Across Flats (Minimum) 0.489"
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Product Class Externally Threaded Fasteners
Material Grade Grade 5
Pitch UNC Coarse Thread
Thread Length (Nominal) 0.875"
Diameter (Dimension) 0.3125"
Drive Style External Hex Drive
Diameter (Nominal) 5/16"
Head Height, Overall (Minimum) 0.195"
Brand Aspen Fasteners
Across Flats (Maximum) 0.500"
Point Chamfered Point
Order Machine Thread Fasteners
System of Measurement Inch
Material Steel
Across Flats (Basic) 1/2"
Thread Direction Right-Hand Thread
Coating Zinc Plated
Head Style Detail Washer Face
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Diameter (Minimum) 0.3065"
POS BO016-51618X234-000550
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO016-51618X234.zip
Head Style Hex Head
