3/8-24 Grade 5 Hex Head Cap Screws

3/8-24 Grade 5 Hex Head Cap Screws
3/8-24 Grade 5 hex head cap screws in SAE fine thread, zinc plated, in lengths from 1" to 3". They take a 9/16" wrench. Short lengths are fully threaded and longer lengths are partially threaded with about 1" of thread.
Specifications
- Size: 3/8-24 (SAE fine)
- Lengths: 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/2", 3"
- Wrench size: 9/16"
- Grade: SAE J429 Grade 5, 120,000 psi min. tensile
- Finish: zinc plated
Fine (SAE) Thread
Zinc Plated Steel
The length of a cap screw is measured from the under-head bearing surface to the extreme end of the screw.
(FT)=Full Thread | (PT)=Partial Thread
Thread Length on a 3/8-24 bolt is approx. 1"
Wrench Size = 9/16"
Stock Photos - to verify Thread Length, goto:
Common Uses
- Automotive and truck repair
- Machinery and equipment
- Fine thread tapped holes
FAQ
What nut fits a 3/8-24 bolt?
A 3/8-24 fine thread hex nut, Grade 5 or higher. A coarse thread 3/8" nut will not fit.
What do USS coarse and SAE fine thread mean?
USS (UNC) coarse thread has fewer threads per inch and is the general purpose standard; it assembles fast and is less likely to cross thread. SAE (UNF) fine thread has more threads per inch, which gives a little more strength and finer adjustment, and is common on vehicles and machinery. The nut must match the thread.
How is the length of a hex bolt measured?
From under the head to the end of the bolt. The head is not included.
Related: All Grade 5 Fine | Grade 8 Fine Thread | Grade 5 Hex Nuts | SAE Flat Washers
Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.

