Highlights:
- Size: 3/4X3-1/4
- Thread pitch: 3/4-10 UNC
- Conforms to SAE Grade 5 physical and mechanical specifications
- Zinc plated for corrosion resistance
Technical Data:
- Material and Mechanical Properties of SAE J429
- Dimensions: ANSI/ASME B18.2.1 Hex Head Cap Screws
- Tensile: 1/4″ – 1″ Nominal Diameter 120,000 psi (minimum) over 1″ Nominal Diameter 105,000 psi (minimum)
- Proof Load: 1/4″ – 1″ Nominal Diameter 85,000 psi; over 1″ Nominal Diameter 74,000 psi
- Threads: Radius Root Class 2A to ANSI/ASME B1.1
- Hardness: 1/4″ – 1″ Nominal Diameter Rockwell C25-C34; over 1″ Nominal Diameter C19-C30
- Decarburation: SAE J121
- Discontinuities: SAE J1061
?Rule of thumb to figure bolt thread length:
- For bolts under 6″: Twice the bolt diameter plus a 1/4″
- For bolts over 6″: Twice the bolt diameter plus a 1/2″
- This gives you the approximate bolt thread length available
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