Prime-Line 9063153 Carriage Bolts, 5/16 In.-18 X 4 In., A307 Grade A Zinc Plated Steel (50 Pack)
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Features
- Size: 5/16 inch-18 X 4 inch
- Features a smooth rounded head as opposed to a standard hex head
- Square shoulder allows for nut to be tightened or loosened
- Often used in cases where a protruding bolt head could cause injury
- Nuts and washers not included, ensure washers and nuts are same diameter
- Thread Type: Coarse, Thread Class: UNC-2A, Point Style: Blunt
- Specification(s) Met: ASME B18.5 and ASTM A307A
Description
Carriage bolts feature a slightly rounded head and have no exposed sharp edges when fully fastened. Due to that reason, they are often used when a more aesthetic look is desired. They are commonly used on docks and on playground equipment or in cases where it may be difficult to reach the bolt head with a tool. The square shoulder on carriage bolts help to hold it in place while the nut is fastened.
Material: Alloy Steel
Thread Size: 5/16"-18
Exterior Finish: Zinc
Manufacturer Grade: Grade A
Head Style: Domed
Material: Alloy Steel
Thread Size: 5/16"-18
Exterior Finish: Zinc
Manufacturer Grade: Grade A
Head Style: Domed
Color: Zinc
Fastener Type: Carriage Bolt
Brand: PRIME-LINE
Thread Type: Unc
Item Diameter: 0.31 Inches
Thread Style: Right Hand
Item Hardness: Rockwell B70
Size: 5/16 in. -18
Metal Type: Alloy Steel
Head Type: Domed
Thread Class: Others
Number of Pieces: 50
UPC: 049793111722
Global Trade Identification Number: 22
Manufacturer: Prime-Line
Item Weight: 3.96 pounds
Item model number: 9063153
Date First Available: August 21, 2017
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