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91257A551 | High-Strength Grade 8Steel Hex Head Screws

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Product Number: 91257A551

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  • Description
Product Number 91257A551
System of Measurement Inch
Drive Style External Hex
Head Type Hex
Threading Partially Threaded
Thread Direction Right Hand
Thread Fit Class 2A
Thread Size 1/4"-20
Thread Spacing Coarse
Thread Type UNC
Height 11/64"
Screw Size Decimal Equivalent 0.25"
Length 2 1/4"
Material Steel
Hardness Rockwell C33
Tensile Strength 150,000 psi
Specifications Met ASME B18.2.1, SAE J429
Country of Origin Peoples Republic of China
Fastener Strength Grade Class Grade 8
Finish Zinc Yellow-Chromate Plated
Min Thread Length 3/4"
Schedule B 731815.9000
Width 7/16"

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