1/4"-20 x 3/4" Carriage Bolts / Full Thread / Grade 8 / Zinc Yellow
- Steel
- Grade 8
- Zinc Yellow
- 20 TPI · Coarse
- ASME B18.5
$297.90
$1.19 / pc
Package of 250
Volume pricing: the bulk box price per piece is shown above. Need more? Request a quote →
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Product Description
1/4"-20 x 3/4" Carriage Bolts / Full Thread / Grade 8 / Zinc Yellow
RoHS Compliant
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.
$297.90
$1.19/pc
Carriage Bolts / Full Thread / Grade 8
Family: C8FT
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1/4"-20 x 3/4" Carriage Bolts / Full Thread / Grade 8 / Zinc Yellow
SKU: 1412C8-250
Technical Specifications
Thread Size
1/4"-20
Thread Series
UNC
Thread Pitch
20 TPI
Thread Coverage
Full Thread
Length
3/4"
Material
Steel
Grade
Grade 8
Finish
Zinc Yellow
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
1412C8-250
https://www.ecomfasteners.com/products/1-4-20-x-3-4-carriage-bolts-full-thread-grade-8-zinc-yellow · Printed