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): 1/2"
- Thread Pitch: 20
- Diameter (Dimension): 0.5"
- Diameter (Minimum): 0.493"
- Diameter (Maximum): 0.500"
- Length (Nominal): 1-1/2"
- Thread Length (Nominal): 1.25"
- Across Flats (Basic): 3/4"
- Across Flats (Minimum): 0.736"
- Across Flats (Maximum): 0.750"
- Head Height, Overall: 5/16"
- Head Height, Overall (Minimum): 0.302"
- Head Height, Overall (Maximum): 0.323"
- 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
Pitch UNF Fine Thread
Diameter (Minimum) 0.493"
Point Chamfered Point
Material Steel
Origin Made in U.S.A.
Head Height, Overall (Maximum) 0.323"
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO018-1220X112.zip
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO018-1220X112
Brand Aspen Fasteners
Diameter (Dimension) 0.5"
Drive Style External Hex Drive
Across Flats (Basic) 3/4"
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Thread Pitch 20
Head Style Hex Head
Head Height, Overall 5/16"
Length (Nominal) 1-1/2"
Diameter (Maximum) 0.500"
Head Style Detail Washer Face
Order Machine Thread Fasteners
System of Measurement Inch
Standards and Specifications ASME B18.2.1 and SAE J429
Product Class Externally Threaded Fasteners
Thread Direction Right-Hand Thread
Category Cap Screws
Head Height, Overall (Minimum) 0.302"
Coating Zinc Plated
Across Flats (Minimum) 0.736"
POS BO018-1220X112-000300
Diameter (Nominal) 1/2"
Coating Color Clear
Material Grade Grade 5
Across Flats (Maximum) 0.750"
Thread Length (Nominal) 1.25"
