1/4-20 X 7-1/2 Hex Head Cap Screws Grade 316 Stainless Steel
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1/4-20 X 7-1/2" Long Hex Head Cap Screw Grade 316 Stainless Steel
USS Coarse Thread
Manufactured to ASME B18.2.1 dimensions.
The molybdenum contents gives this type of stainless even greater corrosion resistance than 18/8 as well as superior strength at high temperatures.
A cap screw made from 316 stainless steel, an austenitic alloy which differs from 18/8 by its molybdenum content (2-3%) and a higher nickel content (10-14%)
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
Hardness: 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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This Mutual Screw & Supply 14120CH316YW 1/4-20 Grade 316 Stainless Steel Hex Head Cap Screws typically ships within 24 to 48 hours
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