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.
- In general, fine thread fasteners are about 10% stronger than coarse threads under static loading.
- Diameter (Nominal): 5/8"
- Thread Pitch: 18
- Diameter (Dimension): 0.625"
- Diameter (Minimum): 0.617"
- Diameter (Maximum): 0.625"
- Length (Nominal): 1-1/4"
- Thread Length (Nominal): 1.25"
- Across Flats (Basic): 15/16"
- Across Flats (Minimum): 0.922"
- Across Flats (Maximum): 0.938"
- Head Height, Overall: 25/64"
- Head Height, Overall (Minimum): 0.378"
- Head Height, Overall (Maximum): 0.403"
- 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: UNF Fine 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
Standards and Specifications ASME B18.2.1 and SAE J429
Diameter (Nominal) 5/8"
Drive Style External Hex Drive
Brand Aspen Fasteners
Length (Nominal) 1-1/4"
POS BO018-5818X114-000225
Coating Zinc Plated
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO018-5818X114.zip
Material Steel
Coating Color Clear
Diameter (Minimum) 0.617"
Category Cap Screws
Across Flats (Maximum) 0.938"
Point Chamfered Point
Head Height, Overall (Minimum) 0.378"
Diameter (Maximum) 0.625"
Head Height, Overall (Maximum) 0.403"
Head Height, Overall 25/64"
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO018-5818X114
Head Style Hex Head
Product Class Externally Threaded Fasteners
Thread Pitch 18
Across Flats (Basic) 15/16"
Across Flats (Minimum) 0.922"
Origin Made in U.S.A.
System of Measurement Inch
Thread Length (Nominal) 1.25"
Material Grade Grade 5
Pitch UNF Fine Thread
Thread Direction Right-Hand Thread
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Order Machine Thread Fasteners
Diameter (Dimension) 0.625"
