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): 1/4"
- Thread Pitch: 20
- Diameter (Dimension): 0.25"
- Diameter (Minimum): 0.245"
- Diameter (Maximum): 0.250"
- Length (Nominal): 3-1/4"
- Thread Length (Nominal): 0.75"
- Across Flats (Basic): 7/16"
- Across Flats (Minimum): 0.428"
- Across Flats (Maximum): 0.438"
- Head Height, Overall: 0.1563"
- Head Height, Overall (Minimum): 0.150"
- Head Height, Overall (Maximum): 0.163"
- 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
Custom Field
Head Style Detail Washer Face
Diameter (Minimum) 0.245"
Coating Color Clear
POS BO016-1420X314-000600
Origin Made in U.S.A.
Diameter (Dimension) 0.25"
Drive Style External Hex Drive
Category Cap Screws
System of Measurement Inch
Diameter (Maximum) 0.250"
Diameter (Nominal) 1/4"
Across Flats (Minimum) 0.428"
Point Chamfered Point
Pitch UNC Coarse Thread
Thread Pitch 20
Product Class Externally Threaded Fasteners
Head Height, Overall 0.1563"
Across Flats (Basic) 7/16"
Standards and Specifications ASME B18.2.1 and SAE J429
Length (Nominal) 3-1/4"
Head Style Hex Head
Thread Length (Nominal) 0.75"
Across Flats (Maximum) 0.438"
Head Height, Overall (Maximum) 0.163"
Head Height, Overall (Minimum) 0.150"
Brand Aspen Fasteners
Head Markings Three radial lines 120 degrees apart and manufacturer ID
Material Steel
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Thread Direction Right-Hand Thread
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Order Machine Thread Fasteners
Material Grade Grade 5
Coating Zinc Plated
