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Carriage Bolts Zinc Plated Steel 5/16-18"

5/16"-18 Zinc Plated Carriage Bolt

Diameter - Thread Pitch: 5/16-18

  • Square section grips into the part being fixed (usually wood)
  • Preventing the bolt from turning when the nut is tightened
  • Up to 6" of thread
  • Bolts Over 6" in length will have a shoulder beneath the head

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

REACH and RoHS Compliant
This item qualifies for FREE SHIPPING on orders $250+
Select Products Below See Product Specifications
NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1/2" FT
SKU #1102-064-0002
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1/2" FT
SKU #1102-064-0002
1
 NA
25
 $3.75 (0.15/ea)
100
 $12.00 (0.12/ea)
1000
 $110.00 (0.11/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 5/8" FT
SKU #1102-064-0012
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 5/8" FT
SKU #1102-064-0012
1
 NA
25
 $3.75 (0.15/ea)
100
 $13.00 (0.13/ea)
1000
 $120.00 (0.12/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 3/4" FT
SKU #1102-064-0022
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 3/4" FT
SKU #1102-064-0022
1
 NA
25
 $3.50 (0.14/ea)
100
 $11.00 (0.11/ea)
1000
 $90.00 (0.09/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1" FT
SKU #1102-064-0032
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1" FT
SKU #1102-064-0032
1
 NA
25
 $5.25 (0.21/ea)
100
 $19.00 (0.19/ea)
1000
 $160.00 (0.16/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1-1/4" FT
SKU #1102-064-0042
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1-1/4" FT
SKU #1102-064-0042
1
 NA
25
 $3.75 (0.15/ea)
100
 $13.00 (0.13/ea)
1000
 $120.00 (0.12/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1-1/2" FT
SKU #1102-064-0052
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1-1/2" FT
SKU #1102-064-0052
1
 NA
25
 $4.00 (0.16/ea)
100
 $15.00 (0.15/ea)
1000
 $130.00 (0.13/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1-3/4" FT
SKU #1102-064-0062
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 1-3/4" FT
SKU #1102-064-0062
1
 NA
25
 $6.25 (0.25/ea)
100
 $23.00 (0.23/ea)
1000
 $200.00 (0.2/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2" FT
SKU #1102-064-0072
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2" FT
SKU #1102-064-0072
1
 NA
25
 $5.00 (0.2/ea)
100
 $17.00 (0.17/ea)
1000
 $160.00 (0.16/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2-1/4" FT
SKU #1102-064-0082
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2-1/4" FT
SKU #1102-064-0082
1
 NA
25
 $7.25 (0.29/ea)
100
 $27.00 (0.27/ea)
1000
 $240.00 (0.24/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2-1/2" FT
SKU #1102-064-0092
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2-1/2" FT
SKU #1102-064-0092
1
 NA
25
 $5.75 (0.23/ea)
100
 $21.00 (0.21/ea)
1000
 $190.00 (0.19/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2-3/4" FT
SKU #1102-064-0102
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 2-3/4" FT
SKU #1102-064-0102
1
 NA
25
 $16.75 (0.67/ea)
100
 $63.00 (0.63/ea)
1000
 $570.00 (0.57/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 3" FT
SKU #1102-064-0112
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 3" FT
SKU #1102-064-0112
1
 NA
25
 $11.75 (0.47/ea)
100
 $44.00 (0.44/ea)
1000
 $420.00 (0.42/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 3-1/2" FT
SKU #1102-064-0122
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 3-1/2" FT
SKU #1102-064-0122
1
 NA
25
 $10.50 (0.42/ea)
100
 $33.00 (0.33/ea)
1000
 $310.00 (0.31/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 4" FT
SKU #1102-064-0132
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 4" FT
SKU #1102-064-0132
1
 NA
25
 $8.75 (0.35/ea)
100
 $31.00 (0.31/ea)
1000
 $290.00 (0.29/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 4-1/4" FT
SKU #1102-064-0142
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 4-1/4" FT
SKU #1102-064-0142
1
 NA
25
 $12.75 (0.51/ea)
100
 $42.00 (0.42/ea)
1000
 $390.00 (0.39/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 4-1/2" FT
SKU #1102-064-0152
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 4-1/2" FT
SKU #1102-064-0152
1
 NA
25
 $23.75 (0.95/ea)
100
 $87.00 (0.87/ea)
1000
 $800.00 (0.8/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 5" FT
SKU #1102-064-0162
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 5" FT
SKU #1102-064-0162
1
 NA
25
 $10.50 (0.42/ea)
100
 $38.00 (0.38/ea)
1000
 $350.00 (0.35/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 5-1/2" FT
SKU #1102-064-0172
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 5-1/2" FT
SKU #1102-064-0172
1
 NA
25
 $16.00 (0.64/ea)
100
 $58.00 (0.58/ea)
1000
 $520.00 (0.52/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 6" FT
SKU #1102-064-0182
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 6" FT
SKU #1102-064-0182
1
 NA
25
 $12.75 (0.51/ea)
100
 $47.00 (0.47/ea)
1000
 $430.00 (0.43/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 6-1/2" FT
SKU #1102-064-0192
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 6-1/2" FT
SKU #1102-064-0192
1
 $0.87 (0.87/ea)
25
 $20.50 (0.82/ea)
100
 $75.00 (0.75/ea)
1000
 $670.00 (0.67/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 7" PT
SKU #1102-064-0202
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 7" PT
SKU #1102-064-0202
1
 $0.90 (0.9/ea)
25
 $21.50 (0.86/ea)
100
 $79.00 (0.79/ea)
1000
 $710.00 (0.71/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 7-1/2" PT
SKU #1102-064-0212
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 7-1/2" PT
SKU #1102-064-0212
1
 $0.81 (0.81/ea)
25
 $18.75 (0.75/ea)
100
 $70.00 (0.7/ea)
1000
 $640.00 (0.64/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 8" PT
SKU #1102-064-0222
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 8" PT
SKU #1102-064-0222
1
 $1.06 (1.06/ea)
25
 $25.00 (1/ea)
100
 $92.00 (0.92/ea)
1000
 $850.00 (0.85/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 9" PT
SKU #1102-064-0242
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 9" PT
SKU #1102-064-0242
1
 $1.23 (1.23/ea)
25
 $28.75 (1.15/ea)
100
 $105.00 (1.05/ea)
1000
 $960.00 (0.96/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 10" PT
SKU #1102-064-0252
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 10" PT
SKU #1102-064-0252
1
 $1.32 (1.32/ea)
25
 $31.00 (1.24/ea)
100
 $114.00 (1.14/ea)
1000
 $1,040.00 (1.04/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 11" PT
SKU #1102-064-0262
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 11" PT
SKU #1102-064-0262
1
 $1.32 (1.32/ea)
25
 $31.00 (1.24/ea)
100
 $114.00 (1.14/ea)
1000
 $1,040.00 (1.04/ea)
Subtotal: $0.00 /
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 12" PT
SKU #1102-064-0272
Carriage Bolt Zinc Plated 307A Grade A Steel - 5/16"-18 x 12" PT
SKU #1102-064-0272
1
 $1.59 (1.59/ea)
25
 $36.75 (1.47/ea)
100
 $137.00 (1.37/ea)
1000
 $1,240.00 (1.24/ea)
Subtotal: $0.00 /

Frequently Used With

Hex Finished Nuts Grade 5 Zinc - 5/16"-18 UNC
Hex Finished Nuts Grade 5 Zinc - 5/16"-18 UNC 1100-002-0022
Hex Finished Nuts Grade 5 Zinc - 5/16
1
 NA
25
 $2.50 (0.1/ea)
100
 $6.00 (0.06/ea)
1000
 $50.00 (0.05/ea)
Subtotal: $0.00 /
Flat Washers Zinc SAE - 5/16" (ID 0.344 x OD 0.688 x THK 0.076)
Flat Washers Zinc SAE - 5/16" (ID 0.344 x OD 0.688 x THK 0.076) 1102-006-0092
Flat Washers Zinc SAE - 5/16
1
 NA
25
 $1.75 (0.07/ea)
100
 $3.00 (0.03/ea)
1000
 $20.00 (0.02/ea)
Subtotal: $0.00 /
Flat Washers Zinc - USS - 5/16" (ID 0.375 x OD 0.875 x THK 0.086)
Flat Washers Zinc - USS - 5/16" (ID 0.375 x OD 0.875 x THK 0.086) 1102-004-0022
Flat Washers Zinc - USS - 5/16
1
 NA
25
 $2.25 (0.09/ea)
100
 $6.00 (0.06/ea)
1000
 $40.00 (0.04/ea)
Subtotal: $0.00 /
Product Specifications
Color
Silver
Corner Radius on Square
0.031
Corrosion Resistant
Yes
Filet Radius
0.031
Finish
Zinc Plated
Head Diameter
Max 0.719 - Min 0.688
Head Height
Max 0.176 - Min 0.156
Head Style
Dome
Material
Steel
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

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