Buy Nuts, Bolts, Screws & Fasteners on sale from largest construction hardware supplies store in USA
DETAILS
DESCRIPTION
Highlights:
- Size: 1/4X4-1/2
- Thread pitch: 1/4-20 UNC
- Conforms to SAE Grade 5 physical and mechanical specifications
- Zinc plated for corrosion resistance
- Pack of 100
Technical Data:
- Material and Mechanical Properties of SAE J429
- Th reads: Radius Root Class 2A to ANSI/ASME B1.1
- Dimensions: ANSI/ASME B18.2.1 Hex Head Cap Screws
- Proof Load: 1/4" - 1" Nominal Diameter 85,000 psi; over 1" Nominal Diameter 74,000 psi
- Hardness: 1/4" - 1" Nominal Diameter Rockwell C25-C34; over 1" Nominal Diameter C19-C30
- Tensile: 1/4" - 1" Nominal Diameter 120,000 psi (minim um) over 1" Nominal Diameter 105,000 psi (minimum)
- D ecarburation: SAE J121
- Discontinuities: SAE J1061
Rule of thumb to figure bolt thread length:
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For bolts under 6": Twice the bolt diameter plus a 1/4"
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For bolts over 6": Twice the bolt diameter plus a 1/2"
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This gives you the approximate bolt thread length available