Biggest building hardware equipments retail store to buy Nuts, Bolts, Screws & Fasteners
DETAILS
DESCRIPTION
Highlights:
- Size: 1/4X1 3/4
- Thread pitch: 1/4-20 UNC
- 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
- Pack of 100
Technical Data:
- Material: Medium Carbon Alloy Steel
- Tensile: 150,000 psi minimum
- Finish: Zinc Yellow.
- Decarburization: Meets SAE J121
- Discontinuities: Meets SAE J1061
- Hardness: Rockwell Hardness C33-C39
- Tempering Temperature: 800° F. (minimum)
- 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
![](https://cdn.shopify.com/s/files/1/2236/0921/files/warning.png?17533833326324795667)