Product Description
- Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
- The heads of grade 8 steel fasteners are typically marked with 6 raised radial lines.
- The washer face under the head provides a precision bearing surface.
- Grade 8 steel fasteners have a minimum tensile strength of 150,000 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): 1-1/8"
- Thread Length (Nominal): 1.125"
- 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: Six radial lines 60 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 8
- Coating: Zinc Plated
- Coating Color: Yellow
- Origin: Made in U.S.A.
- Standards and Specifications: ASME B18.2.1 and SAE J429
Product Videos
Custom Field
Head Height, Overall (Minimum) 0.302"
Thread Length (Nominal) 1.125"
Across Flats (Basic) 3/4"
Material Steel
Across Flats (Maximum) 0.750"
Thread Direction Right-Hand Thread
Diameter (Nominal) 1/2"
Length (Nominal) 1-1/8"
Thread Pitch 20
Category Cap Screws
Coating Zinc Plated
Head Height, Overall (Maximum) 0.323"
Coating Color Yellow
Origin Made in U.S.A.
Standards and Specifications ASME B18.2.1 and SAE J429
Diameter (Dimension) 0.5"
Head Markings Six radial lines 60 degrees apart and manufacturer ID
Order Machine Thread Fasteners
Head Style Hex Head
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO022-1220X118
POS BO022-1220X118-000400
Drive Style External Hex Drive
Diameter (Minimum) 0.493"
Head Style Detail Washer Face
System of Measurement Inch
Across Flats (Minimum) 0.736"
Brand Aspen Fasteners
Pitch UNF Fine Thread
Diameter (Maximum) 0.500"
Head Height, Overall 5/16"
Product Class Externally Threaded Fasteners
Point Chamfered Point
Material Grade Grade 8
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO022-1220X118.zip
