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1/4-20 X 7/16 Hex Head Cap Screw Stainless Steel

Hex Head Cap Screw Stainless Steel
1/4-20 x 7/16"
In Stock - Ships Today!
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  • Mutual Screw & Supply
    Since 1947
  • SKU: 1407CH188 Product Size: 1/4-20 X 7/16 Weight: 2 lbs Condition: New
  • $19.28 for Pack of 100 Cap Screws
    That's only $0.1928 per Cap Screw
  • of 100 Cap Screws
  • You pay $18.32 if you buy 5 Packs or more.
    That's only $0.1832 per Cap Screw
Product Detailed Description

1/4-20 X 7/16" Long Hex Head Cap Screw Stainless Steel

18/8 Stainless Steel - USS Coarse Thread

  • Manufactured to ASME B18.2.1 dimensions
  • Used in products that require general atmospheric corrosion resistance, such as chemical and food-processing equipment
  • Some chemical environments may require special corrosion resistant materials and precautions
  • A cap screw made from one of the following austenitic alloys: 303, 303Se, 304, XM7, all of which are characterized as having a chromium content of 17-19% and nickel content of 8-10%
  • The austenitic alloys develop their strength through work hardening during the fastener manufacturing process, as seen from the hardness properties below.  The only heat treatment normally available on austenitic stainless alloys in annealing, which is done at approximately 1900°F to a dead soft condition and is not normally thermally reversible
  • Manufactured to ASME B18.2.1 dimensions


1/4" through 5/8" diameter: Rockwell B95-C32 3/4" through 1" diameter: Rockwell B80-C32

Yield Strength

1/4" through 5/8" diameter, 2.25D and longer: 65,000 psi. min. 3/4" (2.25D & longer) & 7/8" through 1" diameter (3D & Longer): 45,000 psi. minimum

Tensile Strength

*1/4: through 5/8" diameter, 2.25D and longer: 100,000 - 150,000 psi. 3/4" (2.25d & longer) & 7/8" through  1" diameter (3D & longer): 85,000 - 140,000 psi.

Elongation in 4D

 1/4" through 5/8" diameter: 20% minimum; 3/4" through 1" diameter; 25% minimum

Thread Length

Double the diameter plus 1/4" up to 6" length

D=Normal diameter of the screw in inches

*These properties are tested only on machined specimens when the testing machine cannot provide for full testing of the parts
**Product standards require the manufacturer's head marking to appear on the top of all cap screws 1/4" diameter and larger.
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