Carriage Bolts 316 Stainless Steel 5/16-18"

5/16"-18 316 Stainless Steel Carriage Bolt

Diameter - Thread Pitch: 5/16-18


  • Square section grips into the part being fixed (typically wood)
  • Carriage bolts are threaded all the way down to the square section beneath the head
  • Prevents the bolt from turning when the nut is tightened
  • 316 Stainless steel is corrosion and rust resistant
  • 316 Stainless steel is considered the fastener industry standard

5/16"-18 Carriage bolts have a domed or countersunk head, and the shank is topped by a short square section under the head.

All Carriage Bolts over 6" in length are Partially Threaded

Diameter x Thread Pitch x Length from Under Head
FT: Fully Threaded
PT: Partially Threaded


Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Carriage Bolt 316 Stainless Steel 5/16"-18 x 3/4" FT
SKU #6006-006-002
Carriage Bolt 316 Stainless Steel 5/16"-18 x 3/4" FT
SKU #6006-006-002
1
$0.75 (0.75/ea)
100
$56.00 (0.56/ea)
1000
$510.00 (0.51/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1" FT
SKU #6006-006-004
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1" FT
SKU #6006-006-004
1
$0.83 (0.83/ea)
100
$62.00 (0.62/ea)
1000
$560.00 (0.56/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1-1/4" FT
SKU #6006-006-006
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1-1/4" FT
SKU #6006-006-006
1
$1.01 (1.01/ea)
100
$76.00 (0.76/ea)
1000
$690.00 (0.69/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1-1/2" FT
SKU #6006-006-008
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1-1/2" FT
SKU #6006-006-008
1
$1.17 (1.17/ea)
100
$89.00 (0.89/ea)
1000
$800.00 (0.8/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1-3/4" FT
SKU #6006-006-010
Carriage Bolt 316 Stainless Steel 5/16"-18 x 1-3/4" FT
SKU #6006-006-010
1
$1.40 (1.4/ea)
100
$107.00 (1.07/ea)
1000
$970.00 (0.97/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2" FT
SKU #6006-006-012
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2" FT
SKU #6006-006-012
1
$1.37 (1.37/ea)
100
$104.00 (1.04/ea)
1000
$940.00 (0.94/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2-1/4" FT
SKU #6006-006-014
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2-1/4" FT
SKU #6006-006-014
1
$1.60 (1.6/ea)
100
$116.00 (1.16/ea)
1000
$1,040.00 (1.04/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2-1/2" FT
SKU #6006-006-016
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2-1/2" FT
SKU #6006-006-016
1
$1.57 (1.57/ea)
100
$119.00 (1.19/ea)
1000
$1,070.00 (1.07/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2-3/4" FT
SKU #6006-006-018
Carriage Bolt 316 Stainless Steel 5/16"-18 x 2-3/4" FT
SKU #6006-006-018
1
$2.00 (2/ea)
100
$151.00 (1.51/ea)
1000
$1,350.00 (1.35/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 3" FT
SKU #6006-006-020
Carriage Bolt 316 Stainless Steel 5/16"-18 x 3" FT
SKU #6006-006-020
1
$1.78 (1.78/ea)
100
$136.00 (1.36/ea)
1000
$1,220.00 (1.22/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 3-1/2" FT
SKU #6006-006-022
Carriage Bolt 316 Stainless Steel 5/16"-18 x 3-1/2" FT
SKU #6006-006-022
1
$2.06 (2.06/ea)
100
$157.00 (1.57/ea)
1000
$1,410.00 (1.41/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 4" FT
SKU #6006-006-024
Carriage Bolt 316 Stainless Steel 5/16"-18 x 4" FT
SKU #6006-006-024
1
$2.17 (2.17/ea)
100
$165.00 (1.65/ea)
1000
$1,490.00 (1.49/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 4-1/2" FT
SKU #6006-006-026
Carriage Bolt 316 Stainless Steel 5/16"-18 x 4-1/2" FT
SKU #6006-006-026
1
$2.20 (2.2/ea)
100
$168.00 (1.68/ea)
1000
$1,510.00 (1.51/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 5" FT
SKU #6006-006-028
Carriage Bolt 316 Stainless Steel 5/16"-18 x 5" FT
SKU #6006-006-028
1
$2.27 (2.27/ea)
100
$174.00 (1.74/ea)
1000
$1,560.00 (1.56/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 6" FT
SKU #6006-006-030
Carriage Bolt 316 Stainless Steel 5/16"-18 x 6" FT
SKU #6006-006-030
1
$2.37 (2.37/ea)
100
$181.00 (1.81/ea)
1000
$1,630.00 (1.63/ea)
Subtotal: $0.00 /
Carriage Bolt 316 Stainless Steel 5/16"-18 x 8" PT
SKU #6006-006-032
Carriage Bolt 316 Stainless Steel 5/16"-18 x 8" PT
SKU #6006-006-032
1
$5.21 (5.21/ea)
100
$371.00 (3.71/ea)
1000
$3,340.00 (3.34/ea)
Subtotal: $0.00 /




Product Specifications
Color
Silver
Corner Radius on Square
0.031
Corrosion Resistant
Yes
Filet Radius
0.031
Grade
316
Head Diameter
Max 0.719 - Min 0.688
Head Height Max
0.176
Head Style
Dome
Marine Grade
Yes
Material
Stainless Steel
Overall Head Height
Max 0.176 - Min 0.156
Product Type
Carriage Bolt
Square Neck Depth
Max 0.187 - Min 0.156
Square Neck Width
Max 0.324 - Min 0.307
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Thread Pitch (Count)
18 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances