Highlights:
- Size: 3/8X4-1/2
- Thread pitch: 3/8-24 UNF
- For your toughest fastening applications, use Grade 8 fasteners every time
- Grade 8 Cap Screws comply with SAE J429, ANSI/ASME B18.2.1 hex cap screws
- Imperial’s zinc; yellow dichromate plating provides the extra corrosion protection not found in regular zinc plating
- For maximum holding power, always use a balanced assembly of Grade 8 components; cap screw, hex nut, flat washer, lock washer
Technical Data:
- Tensile: 150,000 psi minimum
- Material: Medium Carbon Alloy Steel
- Decarburization: Meets SAE J121
- Discontinuities: Meets SAE J1061
- Hardness: Rockwell Hardness C33-C39
- Tempering Temperature: 800° F. (minimum)
- Finish: Zinc; Yellow Dichromate ASTM B633, Type II SC1
- Threads: UNRF and UNRC Radius Root Class 2A to ANSI/ASME B1.1
Rule of thumb to figure bolt thread length:
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