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): 1-1/8"
- Thread Pitch: 12
- Diameter (Dimension): 1.125"
- Diameter (Minimum): 1.114"
- Diameter (Maximum): 1.125"
- Length (Nominal): 4"
- Thread Length (Nominal): 2.5"
- Across Flats (Basic): 1-11/16"
- Across Flats (Minimum): 1.631"
- Across Flats (Maximum): 1.688"
- Head Height, Overall: 11/16"
- Head Height, Overall (Minimum): 0.658"
- Head Height, Overall (Maximum): 0.718"
- 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
Origin Made in U.S.A.
Brand Aspen Fasteners
Diameter (Nominal) 1-1/8"
Across Flats (Basic) 1-11/16"
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Category Cap Screws
Coating Zinc Plated
Material Grade Grade 5
Thread Direction Right-Hand Thread
Head Height, Overall (Maximum) 0.718"
Across Flats (Minimum) 1.631"
Diameter (Dimension) 1.125"
Coating Color Clear
Pitch UNF Fine Thread
Length (Nominal) 4"
cad_3d_file_url https||//3d.aspenfasteners.com/assets/obj/BO018-11812X4.zip
Head Height, Overall 11/16"
Diameter (Minimum) 1.114"
Head Height, Overall (Minimum) 0.658"
Thread Pitch 12
Point Chamfered Point
Head Style Detail Washer Face
Material Steel
Thread Length (Nominal) 2.5"
Across Flats (Maximum) 1.688"
Order Machine Thread Fasteners
Drive Style External Hex Drive
POS BO018-11812X4-000025
System of Measurement Inch
cad_3d_viewer_url https||//3d.aspenfasteners.com/viewer/?cad_model=obj/BO018-11812X4
Product Class Externally Threaded Fasteners
Standards and Specifications ASME B18.2.1 and SAE J429
Diameter (Maximum) 1.125"
Head Style Hex Head
