Product Description
- Military grade fasteners are DFARS compliant and made in North America. Certifications available.
- Hex cap screws are manufactured to tighter tolerances as compared to hex bolts.
- Stainless steel significantly improves resistance to tarnishing or corrosion.
- The washer face under the head provides a precision bearing surface.
- The chamfered point improves engagement with a nut or pre-tapped hole.
- Diameter (Nominal): 5/16"
- Thread Pitch: 18
- Diameter (Dimension): 0.3125"
- Diameter (Minimum): 0.3065"
- Diameter (Maximum): 0.3125"
- Length (Nominal): 3-1/4"
- Thread Length (Nominal): 0.875"
- Across Flats (Basic): 1/2"
- Across Flats (Minimum): 0.489"
- Across Flats (Maximum): 0.500"
- Head Height, Overall: 0.2031"
- Head Height, Overall (Minimum): 0.195"
- Head Height, Overall (Maximum): 0.211"
- Category: Cap Screws
- System of Measurement: Inch
- Brand: Aspen Fasteners
- Head Style: Hex Head
- Head Style Detail: Washer Face
- Drive Style: External Hex Drive
- Pitch: Coarse Thread
- Thread Direction: Right-Hand Thread
- Point: Chamfered Point
- Material: Stainless Steel
- Material Grade: 300 Series Stainless Steel
- Material Processes: Passivated
- Coating: Uncoated
- Origin: Made in U.S.A.
- Standards and Specifications: MS35307 Rev E, DFARS
Product Videos
Custom Field
Across Flats (Basic) 1/2"
Across Flats (Maximum) 0.500"
Across Flats (Minimum) 0.489"
Brand Aspen Fasteners
Category Cap Screws
Coating Uncoated
Diameter (Dimension) 0.3125"
Diameter (Maximum) 0.3125"
Diameter (Minimum) 0.3065"
Diameter (Nominal) 5/16"
Drive Style External Hex Drive
Head Height, Overall 0.2031"
Head Height, Overall (Maximum) 0.211"
Head Height, Overall (Minimum) 0.195"
Head Style Hex Head
Head Style Detail Washer Face
Length (Nominal) 3-1/4"
Material Stainless Steel
Material Grade 300 Series Stainless Steel
Material Processes Passivated
Order Machine Thread Fasteners
Origin Made in U.S.A.
POS MI004-51618X314-000100
Pitch Coarse Thread
Point Chamfered Point
Product Class Externally Threaded Fasteners
Standards and Specifications MS35307 Rev E, DFARS
System of Measurement Inch
Thread Direction Right-Hand Thread
Thread Length (Nominal) 0.875"
Thread Pitch 18
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