5/16"-18 Hex Cap Screws Hot Dipped Galvanized 307A Grade A

5/16"-18 Hot Dip Galvanized Hex Cap Screws

Diameter - Thread Pitch: 5/16" - 18


  • 5/16"-18
  • Hexagon head designed to be driven by a wrench or socket
  • Called hex cap bolts or hex cap screws
  • Hot dipped galvanized finish offers corrosion resistance due to the molten zinc bath finishing process
  • Creates a bonded alloy coating

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

Select Products Below
Product Specifications
Across Flats (Width)
1/2", Max 0.501 - Min 0.489
Body Diameter
5/16", Max 0.3152 - Min 0.3065
Corrosion Resistant
yes
Drive Style
Wrench/Socket
Grade
307A Steel
Head Height
Basic 13/16", Max 0.211 - Min 0.195
Head Style
Hex Cap
Material
Hot Dip Galvanized
Product Type
Hex Cap Screws
Thread Pitch (Count)
18 Per Inch (Coarse)
Thread Standard
UNC
Width Across Corners
Max 0.577 - Min 0.571
Wrench Size
1/2"
Select Products Below
Qty
Size
Select Package Quantity
SubTotal
5/16"-18 x 1/2" FT
SKU #1070-032-0002
5/16"-18 x 1/2" FT
SKU #1070-032-0002
1
$0.15 (0.15/ea)
25
$1.75 (0.07/ea)
100
$6.00 (0.06/ea)
1000
$50.00 (0.05/ea)
 
5/16"-18 x 1" FT
SKU #1070-032-0022
5/16"-18 x 1" FT
SKU #1070-032-0022
1
$0.15 (0.15/ea)
25
$2.00 (0.08/ea)
100
$7.00 (0.07/ea)
1000
$60.00 (0.06/ea)
 
5/16"-18 x 1-1/4" FT
SKU #1070-032-0032
5/16"-18 x 1-1/4" FT
SKU #1070-032-0032
1
$0.15 (0.15/ea)
25
$2.25 (0.09/ea)
100
$8.00 (0.08/ea)
1000
$70.00 (0.07/ea)
 
5/16"-18 x 1-1/2" PT
SKU #1070-032-0042
5/16"-18 x 1-1/2" PT
SKU #1070-032-0042
1
$0.15 (0.15/ea)
25
$2.50 (0.10/ea)
100
$9.00 (0.09/ea)
1000
$80.00 (0.08/ea)
 
5/16"-18 x 1-3/4" PT
SKU #1070-032-0052
5/16"-18 x 1-3/4" PT
SKU #1070-032-0052
1
$0.15 (0.15/ea)
25
$2.75 (0.11/ea)
100
$10.00 (0.10/ea)
1000
$90.00 (0.09/ea)
 
5/16"-18 x 2" PT
SKU #1070-032-0062
5/16"-18 x 2" PT
SKU #1070-032-0062
1
$0.15 (0.15/ea)
25
$3.25 (0.13/ea)
100
$12.00 (0.12/ea)
1000
$110.00 (0.11/ea)
 
5/16"-18 x 2-1/4" PT
SKU #1070-032-0072
5/16"-18 x 2-1/4" PT
SKU #1070-032-0072
1
$0.16 (0.16/ea)
25
$3.75 (0.15/ea)
100
$14.00 (0.14/ea)
1000
$120.00 (0.12/ea)
 
5/16"-18 x 2-1/2" PT
SKU #1070-032-0082
5/16"-18 x 2-1/2" PT
SKU #1070-032-0082
1
$0.18 (0.18/ea)
25
$4.25 (0.17/ea)
100
$15.00 (0.15/ea)
1000
$140.00 (0.14/ea)
 
5/16"-18 x 3" PT
SKU #1070-032-0092
5/16"-18 x 3" PT
SKU #1070-032-0092
1
$0.20 (0.20/ea)
25
$4.75 (0.19/ea)
100
$17.00 (0.17/ea)
1000
$150.00 (0.15/ea)
 
5/16"-18 x 3-1/4" PT
SKU #1070-032-0102
5/16"-18 x 3-1/4" PT
SKU #1070-032-0102
1
$0.23 (0.23/ea)
25
$5.25 (0.21/ea)
100
$19.00 (0.19/ea)
1000
$170.00 (0.17/ea)
 
5/16"-18 x 3-1/2" PT
SKU #1070-032-0112
5/16"-18 x 3-1/2" PT
SKU #1070-032-0112
1
$0.24 (0.24/ea)
25
$5.50 (0.22/ea)
100
$20.00 (0.20/ea)
1000
$180.00 (0.18/ea)
 
5/16"-18 x 4" PT
SKU #1070-032-0122
5/16"-18 x 4" PT
SKU #1070-032-0122
1
$0.27 (0.27/ea)
25
$6.00 (0.24/ea)
100
$22.00 (0.22/ea)
1000
$200.00 (0.20/ea)
 
5/16"-18 x 4-1/2" PT
SKU #1070-032-0132
5/16"-18 x 4-1/2" PT
SKU #1070-032-0132
1
$0.30 (0.30/ea)
25
$6.75 (0.27/ea)
100
$25.00 (0.25/ea)
1000
$220.00 (0.22/ea)
 
5/16"-18 x 5" PT
SKU #1070-032-0142
5/16"-18 x 5" PT
SKU #1070-032-0142
1
$0.33 (0.33/ea)
25
$7.50 (0.30/ea)
100
$27.00 (0.27/ea)
1000
$250.00 (0.25/ea)
 
5/16"-18 x 5-1/2" PT
SKU #1070-032-0152
5/16"-18 x 5-1/2" PT
SKU #1070-032-0152
1
$0.36 (0.36/ea)
25
$8.25 (0.33/ea)
100
$30.00 (0.30/ea)
1000
$270.00 (0.27/ea)
 
5/16"-18 x 6" PT
SKU #1070-032-0162
5/16"-18 x 6" PT
SKU #1070-032-0162
1
$0.38 (0.38/ea)
25
$8.75 (0.35/ea)
100
$32.00 (0.32/ea)
1000
$290.00 (0.29/ea)
 
5/16"-18 x 6-1/2" PT
SKU #1070-032-0172
5/16"-18 x 6-1/2" PT
SKU #1070-032-0172
1
$0.45 (0.45/ea)
25
$10.50 (0.42/ea)
100
$38.00 (0.38/ea)
1000
$340.00 (0.34/ea)
 
5/16"-18 x 7" PT
SKU #1070-032-0182
5/16"-18 x 7" PT
SKU #1070-032-0182
1
$0.49 (0.49/ea)
25
$11.25 (0.45/ea)
100
$41.00 (0.41/ea)
1000
$360.00 (0.36/ea)