5/8"-11 x 2 1/2" Carriage Bolts / Full Thread / Grade 8 / Plain
- Steel
- Grade 8
- Plain
- 11 TPI · Coarse
- ASME B18.5
$67.28
$4.49 / pc
Package of 15
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Product Description
5/8"-11 x 2 1/2" Carriage Bolts / Full Thread / Grade 8 / Plain
Frequently Asked Questions
What is the difference between Grade 5 and Grade 8?
Grade 5 (medium carbon steel, 120 ksi tensile strength) is suitable for most industrial applications. Grade 8 (alloy steel, 150 ksi tensile strength) is used for high-strength applications like automotive suspension and machinery. Grade 5 hex heads have 3 radial lines; Grade 8 has 6 radial lines.
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.
$67.28
$4.49/pc
Carriage Bolts / Full Thread / Grade 8
Family: C8FTP
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5/8"-11 x 2 1/2" Carriage Bolts / Full Thread / Grade 8 / Plain
SKU: 6240C8P-15
Technical Specifications
Thread Size
5/8"-11
Thread Series
UNC
Thread Pitch
11 TPI
Thread Coverage
Full Thread
Length
2 1/2"
Material
Steel
Grade
Grade 8
Finish
Plain
Head Style
Round Head
Standard
ASME B18.5
Country of Origin
Import
Tensile Strength
150 ksi (1034 MPa)
Hardness
C33 - C39
Measurement System
Inch
SKU
6240C8P-15
https://www.ecomfasteners.com/products/5-8-11-x-2-1-2-carriage-bolts-full-thread-grade-8-plain · Printed