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Description: A low or medium carbon steel, externally threaded mechanical device 1/4" diameter or larger, with a trimmed hex head and a washer face on the bearing surface.
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Applications/Advantages: Economical for use in non-critical applications where the fastener is not subject to extreme temperatures or stress beyond the limits listed herein.
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Material: AISI 1006 - 1050 or equivalent steel.
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Hardness: 1/4 through 3/4 in. diameter, 6 in. and shorter in length: Rockwell B80 - B100. 1/4 through 3/4 in. diameter, over 6 in. in length: Rockwell B70 - B100. 7/8 through 1-1/2 in. diameter, all lengths: Rockwell B70 - B100.
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Proof Load: 1/4 through 3/4 in. diameter, 6 in. and shorter in length: 55,000 psi. 1/4 through 3/4 in. diameter, over 6 in. in length: 33,000 psi. 7/8 through 1-1/2 in. diameter, all lengths: 33,000 psi.
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Yield Strength*: 1/4 through 3/4 in. diameter, 6 in. and shorter in length: 57,000 psi. minimum. 1/4 through 3/4 in. diameter, over 6 in. in length: 36,000 psi. minimum. 7/8 through 1-1/2 in. diameter, all lengths: 36,000 psi. minimum.
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Tensile Strength: 1/4 through 3/4 in. diameter, 6 in. and shorter in length: 74,000 psi. minimum. 1/4 through 3/4 in. diameter, over 6 in. in length: 60,000 psi. minimum. 7/8 through 1-1/2 in. diameter, all lengths: 60,000 psi. minimum.
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Elongation:* 18% minimum (all diameters)
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Reduction of Area:* 35% minimum (all sizes)
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*These properties are tested only on machined specimens when the testing machine cannot provide for full testing of the parts.
Have questions or need more information about our 'Grade 2 Steel Black Oxide & Oil Hex Head Cap Screws', please contact us?
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