Get best discount deals on construction hardware tools. Your one-stop shop for buying Nuts, Bolts, Screws & Fasteners
DETAILS
DESCRIPTION
Highlights:
- Size: 1/4X4-1/2"
- Thread pitch: 1/4-20 UNC
- Grade 8 Cap Screws comply with SAE J429, ANSI/ASME B18.2.1 hex cap screws
- For your toughest fastening applications, use Grade 8 fasteners every time
- 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
- Pack of 100
Technical Data:
- Material: Medium Carbon Alloy Steel
- Tensile: 150,000 psi minimum
- Hardness: Rockwell Hardness C33-C39
- Tempering Temperature: 800° F. (minimum)
- Finish: Zinc Yellow
- Decarburization: Meets SAE J121
- Discontinuities: Meets SAE J1061
- Threads: UNRF and UNRC Radius Root Class 2A to ANSI/ASME B1.1
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