5/16"-18 x 3" Ribbed Neck Carriage Bolts / Low Carbon Steel / Zinc
- Steel
- Zinc
- 18 TPI · Coarse
- ASME B18.5
$114.82
$2.87 / pc
Package of 40
Volume pricing: the bulk box price per piece is shown above. Need more? Request a quote →
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Product Description
5/16"-18 x 3" Ribbed Neck Carriage Bolts / Low Carbon Steel / Zinc
RoHS Compliant
Frequently Asked Questions
Why does a carriage bolt have a square neck?
The square neck beneath the round head wedges into the wood as the nut is tightened, preventing the bolt from rotating. This allows tightening from one side only — perfect for deck and fence construction where you can not access the back side of the bolt.
$114.82
$2.87/pc
Ribbed Neck Carriage Bolts / Steel / Zinc
Family: CR
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5/16"-18 x 3" Ribbed Neck Carriage Bolts / Low Carbon Steel / Zinc
SKU: 3148CR-40
Technical Specifications
Thread Size
5/16"-18
Thread Series
UNC
Thread Pitch
18 TPI
Thread Coverage
Full Thread
Length
3"
Material
Steel
Finish
Zinc
Head Style
Round Head
Standard
ASME B18.5
Country of Origin
Import
Head Diameter (in)
0.688–0.719
Measurement System
Inch
Head Height (in)
0.156–0.176
SKU
3148CR-40
https://www.ecomfasteners.com/products/5-16-18-x-3-ribbed-neck-carriage-bolts-steel-zinc · Printed