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Hex Cap Screws, Stainless Steel 316, 1/2"-13 x 3-1/4, Partial Thread

Diameter - Thread Pitch: 1/2" - 13
  • 1/2"-13
  • Hexagon head designed to be driven by a wrench or socket
  • Also called hex cap bolts, hex bolts, tap bolts or hex cap screws
  • 316 Stainless Steel Hex Cap Screws are suitable for saltwater, marine and hash environment installations
  • Commonly used for:
    • Boats
    • Docks
    • Piers
    • Other harsh environments

A hex cap screw in smaller sizes may not have a shoulder. When a hex cap screw is fully threaded it can also be referred to as a tap bolt.

Hex Bolts are measured as: Diameter x Thread Pitch x Length from Under Head
FT: Fully Threaded
PT: Partially Threaded

**1/4"-20 Hex Cap Screws listed as PT, usually have a threaded portion of about 3/4".
However, this can vary slightly from manufacturer to manufacturer.

Product number: 700172
Print this page
Click on a size/sku in the table to view product-specific details and specifications.
FT = Full Thread (threaded the entire length)  ·  PT = Partial Thread (unthreaded shoulder below the head)

Specifications

  • Across Flats (Width): 3/4" (Max 0.750 - Min 0.736)
  • asme: B18.2.1
  • Color (Duplicate): Silver
  • Color: Silver
  • Condition: New
  • Corrosion Resistant: Yes
  • Diameter: 1/2"
  • Drive Style: External Hex
  • Head Type: Hex Head
  • Thread Direction: Right Hand
  • Thread Type: Coarse
  • Fit: 2A
  • FT = Full Thread: No
  • Grade: 316
  • Head Height: Basic 5/16", Max 0.323 - Min 0.302
  • Head Height Basic: 5/16"
  • Head Height Max: 0.323
  • Head Style: Hex
  • Length: 3-1/4
  • Marine Grade: Yes
  • Material (Duplicate): 316 Stainless Steel
  • Material: Stainless Steel
  • Overall Head Height: Basic 5/16", Max 0.323 - Min 0.302
  • Part Number: 787392579191
  • Pattern: Hex Cap Screws
  • Product Type: Hex Cap Screws
  • Size Type: Regular
  • Standards Met: ASME B18.2.1
  • System of Measurement: Inch
  • Thread Direction: Right Hand
  • Thread Pitch: 13 Per Inch
  • Thread Size: 1/2"-13
  • Thread Standard: UNC
  • Thread Type: Coarse
  • Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
  • Weight: 1 lb
  • Width Across Corners: Max 0.866 - Min 0.840
  • Wrench Size: 3/4"

Frequently Used With

Flat Washers, Stainless Steel 316, 1/2" (0.531 ID x 1-1/4 OD x .062 THK) Flat Washers, Stainless Steel 316, 1/2" (0.531 ID x 1-1/4 OD x .062 THK)
Volume Pricing*
1
$0.20
($0.20/ea)
100
$17.00
($0.17/ea)
1000
$150.00
($0.15/ea)
$0.00
Hex Finish Nuts, Stainless Steel 316, 1/2"-13 (3/4" Flats x 7/16" Thick) Hex Finish Nuts, Stainless Steel 316, 1/2"-13 (3/4" Flats x 7/16" Thick)
Volume Pricing*
1
$0.51
($0.51/ea)
100
$35.00
($0.35/ea)
1000
$280.00
($0.28/ea)
$0.00
Nylon Lock Nuts, Stainless Steel 316, 1/2"-13 (752" Flats x .464" Thick) Nylon Lock Nuts, Stainless Steel 316, 1/2"-13 (752" Flats x .464" Thick)
Volume Pricing*
1
$0.84
($0.84/ea)
100
$70.00
($0.70/ea)
1000
$620.00
($0.62/ea)
$0.00
Lock Washers, Split Ring, Stainless Steel 316, 1/2" (0.502 ID x 0.869 OD x .125 THK) Lock Washers, Split Ring, Stainless Steel 316, 1/2" (0.502 ID x 0.869 OD x .125 THK)
Volume Pricing*
1
$0.42
($0.42/ea)
100
$25.00
($0.25/ea)
1000
$230.00
($0.23/ea)
$0.00
Fender Washers, Stainless Steel 316, (1/2" x 1-1/2") Fender Washers, Stainless Steel 316, (1/2" x 1-1/2")
Volume Pricing*
1
$0.90
($0.90/ea)
100
$80.00
($0.80/ea)
1000
$750.00
($0.75/ea)
$0.00
MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz. MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz.
Volume Pricing*
$20.03 ea.
$0.00
Select Size/SKU & Quantity
32 Available Sizes
SIZE/SKU Review Volume Pricing* Enter Any Qty
1/2"-13 x 3/4" FT
700022
1
$1.08 ($1.08/ea)
100
$95.00 ($0.95/ea)
1000
$830.00 ($0.83/ea)
$0.00
1/2"-13 x 7/8" FT
700032
1
$1.12 ($1.12/ea)
100
$98.00 ($0.98/ea)
1000
$860.00 ($0.86/ea)
$0.00
1/2"-13 x 1" FT
700042
1
$1.13 ($1.13/ea)
100
$99.00 ($0.99/ea)
1000
$870.00 ($0.87/ea)
$0.00
1/2"-13 x 1-1/8" FT
700052
1
$1.22 ($1.22/ea)
100
$106.00 ($1.06/ea)
1000
$930.00 ($0.93/ea)
$0.00
1/2"-13 x 1-1/4" FT
700062
1
$1.28 ($1.28/ea)
100
$112.00 ($1.12/ea)
1000
$990.00 ($0.99/ea)
$0.00
1/2"-13 x 1-3/8" FT
700072
1
$1.33 ($1.33/ea)
100
$116.00 ($1.16/ea)
1000
$1,020.00 ($1.02/ea)
$0.00
1/2"-13 x 1-1/2" FT
700082
1
$1.37 ($1.37/ea)
100
$119.00 ($1.19/ea)
1000
$1,050.00 ($1.05/ea)
$0.00
1/2"-13 x 1-5/8" FT
700092
1
$2.01 ($2.01/ea)
100
$184.00 ($1.84/ea)
1000
$1,830.00 ($1.83/ea)
$0.00
1/2"-13 x 1-3/4" FT
700102
1
$1.47 ($1.47/ea)
100
$129.00 ($1.29/ea)
1000
$1,130.00 ($1.13/ea)
$0.00
1/2"-13 x 1-7/8" PT
700112
1
$2.34 ($2.34/ea)
100
$216.00 ($2.16/ea)
1000
$2,140.00 ($2.14/ea)
$0.00
1/2"-13 x 2" PT
700122
1
$1.70 ($1.70/ea)
100
$148.00 ($1.48/ea)
1000
$1,300.00 ($1.30/ea)
$0.00
1/2"-13 x 2-1/4" PT
700132
1
$1.94 ($1.94/ea)
100
$169.00 ($1.69/ea)
1000
$1,480.00 ($1.48/ea)
$0.00
1/2"-13 x 2-1/2" PT
700142
1
$2.18 ($2.18/ea)
100
$200.00 ($2.00/ea)
1000
$1,820.00 ($1.82/ea)
$0.00
1/2"-13 x 2-3/4" PT
700152
1
$2.20 ($2.20/ea)
100
$192.00 ($1.92/ea)
1000
$1,680.00 ($1.68/ea)
$0.00
1/2"-13 x 3" PT
700162
1
$2.42 ($2.42/ea)
100
$211.00 ($2.11/ea)
1000
$1,850.00 ($1.85/ea)
$0.00
1/2"-13 x 3-1/4" PT
700172
1
$2.71 ($2.71/ea)
100
$236.00 ($2.36/ea)
1000
$2,080.00 ($2.08/ea)
$0.00
1/2"-13 x 3-1/2" PT
700182
1
$2.78 ($2.78/ea)
100
$242.00 ($2.42/ea)
1000
$2,130.00 ($2.13/ea)
$0.00
1/2"-13 x 3-3/4" PT
700192
1
$3.13 ($3.13/ea)
100
$273.00 ($2.73/ea)
1000
$2,400.00 ($2.40/ea)
$0.00
1/2"-13 x 4" PT
700202
1
$3.17 ($3.17/ea)
100
$276.00 ($2.76/ea)
1000
$2,430.00 ($2.43/ea)
$0.00
1/2"-13 x 4-1/4" PT
700212
1
$3.41 ($3.41/ea)
100
$297.00 ($2.97/ea)
1000
$2,620.00 ($2.62/ea)
$0.00
1/2"-13 x 4-1/2" PT
700222
1
$3.57 ($3.57/ea)
100
$311.00 ($3.11/ea)
1000
$1,730.00 ($1.73/ea)
$0.00
1/2"-13 x 4-3/4" PT
700232
1
$3.95 ($3.95/ea)
100
$344.00 ($3.44/ea)
1000
$3,020.00 ($3.02/ea)
$0.00
1/2"-13 x 5" PT
700242
1
$4.04 ($4.04/ea)
100
$352.00 ($3.52/ea)
1000
$3,100.00 ($3.10/ea)
$0.00
1/2"-13 x 5-1/4" PT
700252
1
$5.55 ($5.55/ea)
100
$511.00 ($5.11/ea)
1000
$5,090.00 ($5.09/ea)
$0.00
1/2"-13 x 5-1/2" PT
700262
1
$4.46 ($4.46/ea)
100
$388.00 ($3.88/ea)
1000
$3,420.00 ($3.42/ea)
$0.00
1/2"-13 x 5-3/4" PT
700272
1
$5.71 ($5.71/ea)
100
$527.00 ($5.27/ea)
1000
$5,250.00 ($5.25/ea)
$0.00
1/2"-13 x 6" PT
700282
1
$5.05 ($5.05/ea)
100
$440.00 ($4.40/ea)
1000
$3,860.00 ($3.86/ea)
$0.00
1/2"-13 x 6-1/2" PT
700292
1
$7.34 ($7.34/ea)
100
$638.00 ($6.38/ea)
1000
$5,620.00 ($5.62/ea)
$0.00
1/2"-13 x 7" PT
700302
1
$7.98 ($7.98/ea)
100
$694.00 ($6.94/ea)
1000
$6,110.00 ($6.11/ea)
$0.00
1/2"-13 x 7-1/2" PT
700312
1
$8.35 ($8.35/ea)
100
$726.00 ($7.26/ea)
1000
$6,390.00 ($6.39/ea)
$0.00
1/2"-13 x 8" PT
700322
1
$8.40 ($8.40/ea)
100
$731.00 ($7.31/ea)
1000
$6,430.00 ($6.43/ea)
$0.00
1/2"-13 x 9" PT
700332
1
$11.30 ($11.30/ea)
100
$1,035.00 ($10.35/ea)
1000
$9,410.00 ($9.41/ea)
$0.00

*Volume pricing available on select products. Products without quantity breaks are priced per unit.

Page Total: $0.00

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