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Hex Tap Bolts 18-8 Stainless Steel

Hex Tap Bolts 18-8 Stainless Steel


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Hex Tap Bolts 18-8 Stainless Steel

18-8 stainless steel hex tap bolts 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.

Hex Tap Bolts 18-8 Stainless Steel
 
Hex Tap Bolts 18-8 Stainless Steel
Bolt
Diameter
Width Across FlatsWidth Across ComersHead Height
BasicMax.Min.Max.Min.BasicMax.Min.
1/47/160.4380.4280.5050.4885/320.1630.150
5/161/20.5000.4890.577
0.55713/640.2110.195
3/89/160.5620.5510 .6500.62815/640.2430.226
7/165/80.6250.6 120.7220.6989/320.2910.272
1/23/40.7500.7360.8660.8405/160.3230.302
9/1613/160.8 120.7980.9380.91023/640.3710.348
5/815/160.9380.9221.0831.05125/640.4030.378
3/411/81.1251.1001.2991.25415/320.4830.455
7/81 5/161.3 121.2691.5161.44737/640.6040.531
111/21.5001.4501.7321.65343/640.7000.591
11/41 7/81.8751.8 122.1652.06627/320.8760.749

  • 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.