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Carriage Bolts 18-8 Stainless Steel

Carriage Bolts 18-8 Stainless Steel


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Carriage Bolts 18-8 Stainless Steel

18-8 stainless steel carriage bolts are manufactured to meet or exceed ANSI B18.5 and will have a typical composition of 18% chromium and 8% nickel. These percentages exist in 303, 304 and 305 series stainless steels so 18-8 is used at times to designate any and all of those alloy groups. 18-8 stainless steel offers good corrosion resistance and machines easily but will over time stain in coastal environments. They are also acceptable for use in ACQ pressure-treated lumber.

Carriage Bolts 18-8 Stainless Steel
 
Carriage Bolts 18-8 Stainless Steel
Bolt
Diameter
DiameterHead DiameterHead HeightSquare WidthSquare Depth
Max.Min.Max.MinMaxMinMaxMin.MaxMin.
80.16400.1730.1570.3280.2980.1020.0830.1690.1550.1080.078
100.19000.1990.1820.4690.4360.1140.0940.1990.1850.1250.094
120.21600.2250.2060.5000.4680.1490.1250.2150.1970.1350.105
1/40.25000.2600.2370.5940.5630.1450.1250.2600.2450.1560.125
5/160.31250.3240.2980.7190.6880.1760.1560.3240.3070.1870.156
3/80.37500.3880.3600.8440.7820.2080.1880.3880.3680.2190.188
7/160.43750.4520.4210.9690.9070.2390.2190.4520.4310.2500.219
1/20.50000.5150.4831.0941.0320.2700.2500.5150.4920.2810.250
5/80.62500.6420.6051.3441.2190.3440.3130.6420.6160.3440.313
3/40.75000.7680.7291.5941.4690.4060.3750.7680.7410.4060.375

  • Finished Hex Nut
      
     

    Finished Hex Nuts 18-8 Stainless Steel

    18% Chromium, 8% Nickel 
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    Finished Hex Nuts in 18-8 stainless steel are designed for use with stainless steel bolts or screws with a specified minimum tensile strength equal or less than the specified proof stress of the mating nut. 18-8 nuts are made from one of the following austenitic alloys: 303, 303SE, 304, XM7, all of which are characterized as having a chromium content of 18% and nickel content of 8-10%. Hardness of Rockwell B95 - C32 for diameters 1/4 through 5/8. Rockwell B80 - C32 for diameters of 3/4 through 1 inch. Proof load of 100,000 psi for diameters 1/4 through 5/8 and 85,000 psi for diameters 3/4 through 1 inch.
  • Flat Washer
      
     

    Flat Washers 18-8 Stainless Steel

     
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    Designed for use with 18-8 stainless steel screws, bolts and nuts in general industrial applications where parts are subject to corrosion.